historia del evolution

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History of the Evolution

To fans of the world rally racing circuit of the early 1980s, the excitement of the short-lived, three-year long reign of the Group B division was an unforgettable motor sports memory.A loosely interpreted rulebook helped Group B become history’s most extreme rally class and helped to establish the most fiendishly quick and powerful vehicles rally racing had ever seen contested for championship points.Audi, Ford and Peugeot, among others, fielded factory supported teams to carry what soon became 400-plus horsepower, mid-engine, Kevlar bodied, four-wheel-drive, multi-surface supercars that defined the Group B class.
Between fierce manufacturer competition and the Federation Internationale De L’Automobile (FIA) governing body’s relaxed rulebook, Group B became an ideal motor sport division for the swift development of vehicles using experimental technologies. Group B’s flexible homologation requirements allowed manufacturers to introduce modified or advanced“evolution” versions of their race vehicles at any point during the season once twenty copies of the vehicle had been produced. Evolution versions of Group B cars, such as the Ford RS200 Evolution allowed engineers to legally incorporate the additional engine, traction, and aerodynamic enhancements required to keep pace with similar mechanical advances made by competitors.
By 1986, the cars were so quick and the handling so tenuous that the vehicles were challenging their driver’s capacity to handle them on the narrow, spectator-crowded rally roads. The concern for safety, brought on by several fatal accidents, renewed the commitment to responsible racing that eventually brought about the sensible demise to both group B and the even wilder, stillborn Group S rally category at the end of the 1986 season.Beyond fabulous, petrol-soaked memories, the legacy left by Group B can still be seen in the technological influence that these fast, tall-winged, turbo-charged evolution versions of technical rally wizardry have had on current rally vehicles.Nowhere is that influence more evident than on Mitsubishi Motors’ homologation vehicles known simply as “evo’s.”


Lancer Evolution I

Lancer Evolution I in showroom trim.
While Group B might have been responsible for introducing rally racing fans to the concept of highly developed, limited production “evolution” vehicles, the word “evolution” has now become synonymous with the Mitsubishi Lancer series that competed in the Group A division after the demise of Group B.In October of 1992, Mitsubishi unleashed the first of what would ultimately become an all-conquering breed of Group A rally weapons: the Lancer Evolution I.This lightweight, compact, turbocharged, all-wheel-drive, four-door sedan replaced the heavier Galant sedan that had been competing on the rally circuit. The Lancer Evolution I showcased Mitsubishi’s technology at the time and implemented the lessons learned from the campaign that fielded a Galant in competition from 1988-1990.

Lancer Evolution I in competition.
To homolgate the Lancer Evolution I for competition in Group A, rules specified that at least 2,500 units had to be built for public consumption.This homologation model featured a 2.0-liter, DOHC, turbocharged engine that put out about 250 PS (Japanese power rating) with what had been the Galant VR-4 all-wheel-drive sedan.The Lancer Evolution I unibody was reinforced with additional welds and materials to improve torsional rigidity by 20 percent.
The suspension was modified with pillow ball mounts replacing bushings on the control arms mounting points.An aluminum hood helped reduce weight to a feathery 1,170 kgs while a front spoiler and lift reducing rear spoiler offered improved aerodynamics. As a road car, the Lancer Evolution I offered exhilarating performance in the compact sedan category, and began to whet the appetites of Japanese and European enthusiasts for later versions.

Lancer Evolution II





Lancer Evolution II in showroom trim.
In late 1993, Mitsubishi released the Lancer Evolution II to the public to meet competition vehicle rules requirements in the FIA’s Group A rally division.Based on the same Lancer chassis as the Lancer Evolution I, the Lancer Evolution II incorporated performance improvements that had resulted from the lessons learned on the rally circuit. The Lancer Evolution II specification raised engine output by 10 PS thanks in large part to a less restrictive exhaust system that reduced backpressure. The Lancer Evolution II’s front control arms and struts were lengthened to improve wheelstroke and handling increasing the vehicle’s cornering limits.In addition, lightweight O·ZÒ aluminum road wheels help improve suspension performance with a reduction in unsprung weight.

Lancer Evolution II in competition.
Lancer Evolution III

Lancer Evolution III sedan.
The Lancer Evolution III debuted in 1995 adding yet another 10 PS of total output for a total of 270 PS at 6,250 rpm thanks to a new turbo compressor and less restrictive exhaust, and an additional intercooler sprayer that helped stabilize boost and power at high speeds.Aerodynamic improvements dominated the exterior appearance of the Lancer Evolution III.With a revised air dam, side skirts, and a much larger rear wing, the Lancer Evolution III wore an aerodynamic package that helped improve high speed handling as well as add visual distinction.The Lancer Evolution III was the first Lancer vehicle to enjoy outright victories on the world rally stage.Lancer Evolution III’s victories began to cultivate a reputation as one of the world’s top shelf performance cars and through the 1996 season helped Tommi Makinen win his first driver’s title and garnered Mitsubishi a second place in the manufacturers title.

Lancer Evolution III in competition.


The Lancer Evolution III sedan was the first to enjoy outright victory in the World Rally Championship.

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Lancer Evolution IV

Lancer Evolution IV benefited from a redesign of the Lancer chassis and a new interior layout.

Following the complete redesign of the Lancer chassis in 1996, engineers sought to build a vehicle that fully exploited the virtues of the new unibody, and continued the Lancer Evolution’s success on the rally circuit.This basic Lancer design helped deliver the majority of Tommi Makinen’s dominant stage victories and championship conquests for the World Rally Circuit.As a result, he won a record four consecutive championships from 1996 to 1999. The Lancer Evolution IV would signify the largest leap in mechanical improvements of the Lancer Evolution lineage.

Lancer Evolution IV in competition.

Appearing at the end of 1997, the Lancer Evolution IV’s 4G63, 2.0-liter, four cylinder engine received several modifications, such as a metal head gasket and revised intake manifold, that improved power and durability under boost.Combined with revised cam timing, lighter pistons, and a new, more efficient turbocharger, this highly evolved 2.0-liter engine produced 280 PS at 6,500 rpm.The vehicle also offered a choice between a close ratio and a super-close ratio five-speed gearbox as well as a choice between low and high final drive gears. Other drivetrain technologies included the Active Yaw Control system for the rear differential and a torque adaptive helical gear LSD front differential that also increased cornering capability by controlling wheel slippage.These modifications helped make the Lancer Evolution IV as capable on the track as it had shown to be on the gravel.
Lancer Evolution V

Lancer Evolution V was the first vehicle in the series to wear widened fenders to accommodate the increased track.

With the debut of the FIA approved World Rally Class in 1997, carmakers were allowed to compete with one-off, group-A rules-based prototypes with no intention of building for public consumption. Mitsubishi elected to continue the more radical development of the Lancer Evolution Group A vehicle that had already proven its success in competition. To stay competitive with the new breed of purpose-built WRC racing machines, Mitsubishi sought to increase the Lancer’s performance envelope more than ever before.The Lancer Evolution V was launched in the beginning of 1998, and was immediately distinguished by its muscular new look.The vehicle’s front and rear track had been widened considerably making it the first Evolution model in the series to wear bulging wheel arches on its aluminum fenders.An aggressive front spoiler improved cooling and intercooler performance.The tallest rear wing yet to appear on an Evolution vehicle became adjustable for downforce.

Lancer Evolution V in competition.

The Lancer Evolution V’s suspension geometry was optimized to compliment the increased track and control arm and link pivot points were substantially reinforced.An increase wheel stroke and a relocated steering box helped increase control and response to driver input.
The Lancer Evolution V rode on large 17-inch wheels, and also was the first Lancer Evolution to include upgraded BremboÒ brakes.The Lancer Evolution V had transformed into a world-class performance car whose engine could sprint with the best and combined adhesive-like handling capability with raw, aggressive purposeful appearance.As the Lancer Evolution legend grew in Japan and Europe, the custom had become for the limited run of retail units to sell out within months of introduction. Considering the demise of the turbocharged performance car market in the U.S. at the time, the Lancer Evolution series seemed poised to remain one of those rare, delicious automotive morsels that would only be enjoyed by enthusiasts outside of the U.S.
Lancer Evolution VI

Lancer Evolution VI.
Lancer Evolution VI Tommi Makinen Edition.

The Lancer Evolution VI arrived at the beginning of 2000 with additional enhancements to help maintain its competitiveness with the fast-evolving WRC-spec cars that were competing on the World Rally Circuit. The Lancer Evolution VI incorporated small refinements over the Lancer Evolution V that ultimately made for a stronger and more flexible performance car.

The Lancer Evolution VI proved capable in competition and often enjoyed victory.

Following an FIA regulation that reduced the wing size, the Lancer Evolution VI made up for the lost downforce with a new, lower-profile, dual wing design.Radiator cooling was improved with a larger bumper inlet that improved airflow, and a revision of the engine’s coolant passages that helped reduce water pump cavitation.A revised oil pan baffle and a larger oil cooler helped stabilize oil temperatures under heavy load.The 2.0-liter engine did not receive an upgrade in power, but subtle intake and engine management upgrades (including a titanium alloy turbocharger turbine) improved engine response and torque.
The Lancer Evolution VI undercarriage marked the use of high-strength lightweight forgings for suspension components.The forged aluminum control arms, trailing arms and links were introduced with the intension of reducing unsprung weight and improving suspension performance. To maximize the function of the new suspension, the Lancer Evolution VI unibody was reinforced with an addition of 130 more spot-welds, and the use of strategically placed thicker structural metal.A later development of this sixth generation Lancer Evolution was introduced to commemorate Tommi Makinen’s unprecedented fourth consecutive driver’s championship after the 1999 season.Sporting an exclusive exterior and interior package with graphics and styling mimicking the race vehicle, the Lancer Evolution VI Tommi Makinen edition also included a stiffer, lowered suspension, quicker ratio steering, and optimized roll-center height.
In 2000, a version of the Lancer Evolution VI would find its way into the U.S. press fleet, so that North American journalists could get acquainted with this legend and drive this most spirited of Mitsubishi vehicles.Universally, it seemed, anyone who drove the vehicle pleaded for its availability in U.S. showrooms.

Lancer Evolution VII

Lancer Evolution VII.

In 2001, with the launch of an all-new Lancer Cedia sedan, the Lancer Evolution VII completed a transformation into an ultra-high tech, super performance sedan whose capability on the road rivaled that of far more exotic machinery. The sum of the small evolutionary mechanical enhancements of the previous model combined with the addition of an all-new, longer-wheelbase platform designed with an eye toward competition, helped the Lancer Evolution VII attain new levels of performance and refinement in the series.
In racing, the Lancer that competed on the highest level was now a purpose-built WRC spec vehicle and would come to dominate the Group N rally category for more street-oriented vehicles.It utilized an all-new, more-aerodynamic styling treatment with mildly bulged box flares, a more capable driveline complete with the latest generation of electronic differentials and traction control aids.The venerable 4G63 engine was refined to a point of delivering broad, almost lag-free power across the entire rev-range, its new peak rating (276 horsepower) now a gross underestimation of actual output. Drivers and enthusiasts worldwide found it to be a driving thrill matched by only an elite few vehicles available off the showroom floor today.

Lancer Evolution WRC race vehicle was developed to take advantage of WRC-car class rules.

The Lancer Evolution VII’s surreal cornering limits and ribcage compressing acceleration left journalists awestruck and in disbelief that a vehicle that began its path down the assembly line as a humble Lancer sedan could be tuned to offer such amazing performance.After the test drives and after the articles went to print, members of the media and enthusiasts wondered aloud and begged to know if the Lancer Evolution series would ever be offered to U.S. consumers, and when that time would come.That time is now.

The Lancer Evolution sedan series were designed primarily to serve as a basis for top-flight rally racing vehicles.

Exterior Design Concept

The 2003 Mitsubishi Lancer Evolution sedan exterior styling treatment is designed to heighten the vehicle’s sense of purposeful aggression, and encourage a willingness for performance driving.Lancer Evolution’s motor sports-inspired look reveals many subtle exterior design features included in the vehicle to help augment its genuine sportscar appeal while adding purpose and capability. One of Lancer Evolution’s most striking visual features is the bold front fascia that prominently displays Mitsubishi’s split-grille corporate identity. The use of multiple, chiseled intakes with sculpted inlets help not only heighten the performance image of the vehicle, but the very functional ducts help cool components and manage airflow to improve the vehicle’s handling.

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At the vehicle’s poles, Mitsubishi designers heighten the vehicle’s appeal with elements that add a greater sense of quality and refinement to the design, such as the clear taillights and HID projection front lamps. Meanwhile, in keeping with the competition nature of this high- performance vehicle, large portions of exterior sheetmetal such as the hood and front fenders, are stamped in lightweight aluminum to help reduce the vehicle’s weight. At the rear of the vehicle, weight savings are realized with the rear fender blister integrated into the body’s sheetmetal instead of attaching to the fender as an extension assembly as with previous Lancer Evolution models. Other weight savings measures, such as the use of durable, lightweight composite materials in the construction of aerodynamic components also speak to the refinement, and thoughtful performance oriented design of this amazing compact high-performance car.


Lancer Evolution’s front end styling makes a loud statement to the performance nature of this competition-inspired vehicle.
The Lancer Evolution sedan makes a loud performance car statement and presents an aggressive, sporty exterior design with the help of competition-oriented exterior colors. Exterior colors hues available for the Lancer Evolution sedan represent a range of basic, highly visible, mostly not-metallic hues that typically appear in the realm of motor sports competition and rally racing. Available Lancer Evolution colors include: Weightless White, Lightning Yellow, Rally Red, Apex Silver, Blue by You, Tarmac Black. These colors represent the spirit of rally racing, performance driving, and embody the energy of the Lancer Evolution product. Heightening the sporty nature of these exterior schemes is a monochromatic presentation that has bumper surfaces, door handles and side mirrors color-keyed to create a greater sense of aggressive, distinctive visual sportscar appeal for these race-inspired vehicles.

Lightweight Aluminum Exterior Sheetmetal

Racecar construction has always focused greatly on weight reduction and weight placement as a means of improving a vehicles performance, handling and braking. Reducing front end weight can help the handling balance of a vehicle with a heavy front end weight bias.
The Lancer Evolution sedan, with its 60/40 weight distribution relies on lightweight panels, and the downforce created by its massive rear wing to help improve the vehicle’s handling balance through turns.















An example of Lancer Evolution VII’s featherweight front-end panels.
By using aluminum sheetmetal for the fenders and hood, not only is overall weight reduced, but the nose section’s center of gravity is also reduced, improving handling and braking. The blistered rear quarter panel that accommodate the vehicles wider track and that are integrated into the body are pressed from steel. The aluminum panels are created by dedicated tooling designed to precisely form a softer, lighter metal, and maintain excellent fitment characteristics.

The Lancer Evolution sedan makes use of lightweight aluminum sheetmetal to accommodate the vehicle’s wider track and promote smoother airflow across the sides of the vehicle as well as through the grille and hood vent to help evacuate engine heat.

Carbon fiber construction of the available rear wing allows for modification of the airfoil for maximum downforce with minimal aerodynamic drag.











Front Fascia and Bumper

The design of the HID arrangement blends into the widened front fender and aerodynamic front fascia.


The U.S.-specification Lancer Evolution sedan’s front bumper is a new design that helps the vehicle meet more stringent front impact requirements while also offering improvements in airflow and intercooler efficiency. The Lancer sedan’s steel bumper support structure has been redesigned and reinforced to accommodate the intercooler and expanded for the additional intake ducting this engine requires for cooling. The front end styling is highlighted by the prominent display of the Mitsubishi triple-diamond emblem centered in an aggressively carved split grille inlet. The front end also features wider Lancer Evolution HID headlight assemblies with edges that blend into the widened aluminum front fenders. These headlights project a longer, stronger beam to improve nighttime visibility.

Front End Details

No.
Front End Detail
Description

1
Radiator inlet
The radiator inlet has been enlarged and contoured to help direct additional air to this heat exchanging surface.
2
Additional cooling inlets
Additional, contoured, highly efficient cooling inlets have been located on the bumper beam, in the hood, and at the sides of the center radiator opening.
3
Newly design support beam structure
This revised mounting structure helps increase the bumper’s rigidity, and includes small ducts that direct oncoming air into the intercooler.
4
Intercooler duct
An additional duct covered by steel mesh screen helps direct air toward the intercooler components.
5
Inlet screens
The Lancer Evolution series uses metal screens over the various inlet locations to replace the plastic inlets that were equipped on previous Lancer Evolution vehicles.
6
Blocking cover
A blocking cover is used to close an unused inlet and help improve the vehicle’s aerodynamic performance.

Lancer Evolution HID front headlamp detail.
Rear Bumper and Taillights
The Lancer Evolution’s rear section exterior design presents a view of a sophisticated, muscular, purposeful vehicle that looks every bit the performance sedan thanks to its full-size rear wing and clear jeweled rear taillight lenses. Beneath this trunk-mounted rear spoiler is a large, reinforced rear bumper structurally improved over previous Lancer Evolution rear bumper designs. Just as with the front bumper, the new U.S-specification rear bumper structure includes an extensive structural redesign intended to improve the bumpers durability in 2.5 mph collisions. Located on either side of the Lancer Evolution’s trunk lid are attractive composite rear taillight assemblies that shine brightly through clear lenses. The design of these taillights lend a hip, sophisticated, European appeal to this high-performance compact sedan.

Lancer Evolution tail lamps shine through an attractive, clear lens.
Lancer Evolution - Key Exterior Dimensions

Interior Design Concept

The 2003 Mitsubishi Lancer Evolution high-performance sedan utilizes the same spacious, four-passenger layout as found inside the Lancer sedan series. The high roofline of the most recent Lancer sedan design (2002 model) endows the Lancer Evolution with voluminous rear head and legroom uncommon in such a competent track vehicle. The large cabin ensures comfort for four adults while also offering drivers outstanding visibility due to the reduced height of the instrument panel. Aesthetically, the Lancer Evolution interior receives many of the appealing material texture and surface treatments that have made the Lancer sedan’s cabin one of the most sophisticated and neatly-finished in the class.

The Lancer Evolution interior offers performance drivers a greater sense of purpose with sportscar-level refinement.
A large titanium-hued accent panel is added to the center console controls and extends across the dash. The door panels and center console armrest are the same comfortable padded assemblies found in the Lancer sedan. However, unlike the Lancer sedan, the Lancer Evolution interior is available in only one mood-regulating interior hue. This more serious color scheme speaks to the purposeful nature of the Lancer Evolution’s all-business racing-oriented interior. With a leather-covered MOMO® steering wheel, a leather-covered shift knob, and supportive Recaro® seats, it becomes obvious that Lancer Evolution’s interior prioritizes driver empowerment.
Gauges
Driver empowerment begins with improving the level of control one experiences at high speeds or in competition. The instrument panel and the control surfaces on the Lancer Evolution are designed to facilitate driver involvement and heighten the sense of control at higher speeds. The large, round, easy-to-read, red-accented, black-faced gauges display vital engine and vehicle information such as engine speed and water temperature that can be read instantly with the help of red-tinted illumination that helps create a three-dimensional visual affect for the numbers and icons. The gauge cluster consists of a round 160 mph speedometer with digital odometer, a center-mounted oversized 9,000 rpm tachometer, a temperature, and fuel level gauge, and several warning light displays. The relatively tight spacing of these gauge dials makes all the vital information clearly visible when peering though the steering wheel, and their bold print makes it easier for drivers to focus their attention on the road.

Lancer Evolution gauge cluster with 160 mph speedometer.


Steering Wheel and Shift Knob

Tactile control and a correct, reassuring “feel” to the control surfaces are important for driver’s trying to wring optimum performance from a vehicle. The Lancer Evolution is equipped with a leather-covered three-spoke MOMO® steering wheel. The reduced diameter of this steering wheel and supple, fingertip-pleasing leather surface helps drivers achieve improved steering control. The center of the steering wheel also contains the driver’s SRS airbag.

Leather-covered Lancer Evolution steering wheel by MOMO® features comfortable notches for improved control.

Lancer Evolution leather-covered shifter.



The five-speed short throw shifter located in the center console is equipped with a weighted, leather-covered, round shift knob that helps improve shifter action and control of the knob in a driver’s palm. The stitched leather shifter knob is surrounded by a round, decorative, titanium hued ring and genuine leather boot that adds a sense of sophisticated sportscar appeal to the Lancer Evolution. The Lancer Evolution’s parking brake handle is also leather-covered for improved grip and control.
Seating
The front seats are step-free adjustable Recaro® models built specifically for the U.S. version of the Lancer Evolution. The bottom half of the seat is wider than the Japanese domestic market version and features supportive side-bolsters that help control the lateral movement in the seat even under high cornering loads. The top half of the seat consists of a motor sports-style shell, contoured and padded to provide support and to securely locate the driver’s torso. The supportive architecture of the premium-quality seat is designed to reduce driver fatigue after spirited episodes behind the wheel. A high level of adjustability is available as the Recaro® seats feature 224 mm of step-free fore and aft movement as well as a 122° range of step-free seat back adjustability. In keeping with the competition-oriented nature of this vehicle, the seat back also includes provisions for the routing of multi-point racing harness straps. The seat fabric covering utilizes a textured high-friction material that helps reduce occupant movement in the seat. The premium fabric scheme offers a combination of deep black, suede-type material with atextured, dark blue center section of the seat. The seats are mounted to realize a lower center of gravity and reduce the hip-point by 30 mm as compared to the Lancer sedan.

Lancer Evolution’s front seat adjustments use step-free articulation for ideal driver positioning.

Recaro® designed Lancer Evolution front seats are designed with additional width for U.S.-market vehicles.
The Lancer Evolution’s rear seats are covered in a premium fabric color scheme matching the front seats. The rear bench seats include the convenience of a center armrest cupholders. Both the front and rear seating positions include the security of three-point restraints. Leather seating surfaces are not available on the Lancer Evolution sedan.
Conveniences
In spite of the unapologetically, performance-minded nature of the Lancer Evolution sedan, the vehicle includes many of the most desirable sedan convenience features that help make it an incredible value as both a sedan and a performance car. Standard equipment includes a six-speaker, 140-watt, Mitsubishi CD audio system, headlight leveling control knob, dual vanity mirrors, rear cup holders, keyless entry, a trunk entrapment release handle, and an attractive leather covered parking brake handle. All Lancer Evolution models offer the convenience of a rear intermittent wiper and washer as well as child door locks on the rear doors. A trunk entrapment feature also prevents children (or adults) from becoming trapped in the vehicle’s trunk.
Given the long list of standard equipment and performance enhancements applied to this race-oriented vehicle, the optional equipment list for the Lancer Evolution sedan is a short one. A six-disc CD changer will be available as an option on the vehicle later in the model year (April 2003). Also, buyers can select a more subdued-looking lower-profile GT wing instead of the carbon-fiber unit. The 2003 Mitsubishi Lancer Evolution sedan will be the first in the series to offer consumers an available power glass sunroof.
Powertrain

For sportscar enthusiasts, the metaphorical heart of a performance vehicle can be found under the hood. True high-performance cars draw a great deal of their appeal and character from a highly tuned motor that thrills drivers with sudden thrusts of acceleration, power at higher speeds, and engine capability that facilitates high speed passing and split-second maneuvers.

A progressively more highly developed version of the reliable 4G63 engine has powered every Lancer Evolution sedan.
Most of the engines powering high-performance vehicles are derived from more humble passenger car mechanical roots; developed upon the basic architecture of an engine design that was focused on durability, fuel economy, and broad power at lower speeds. The motor resting between the fenders of the 2003 Mitsubishi Lancer Evolution is a highly evolved descendent of a high-winding, eight-valve, four-cylinder engine design under the hood of the first rally-going Lancer, the GSR 1600 of 1973. Almost a decade later, a turbocharger was added to the same engine design powering the rear-wheel-drive Lancer EX 2000 that contested for stage victories on the world rally circuit between 1981 and 1983. Like a fine wine that matures with improved flavor over time, numerous competition-purposed revisions to the 2.0-liter engine’s mechanical specifications and manufacture have helped evolve this engine into a durable, sophisticated powerplant capable of producing torque all over the tachometer. Nowhere is the “Evolution” badge more applicable than in reference to the Lancer Evolution’s magnificent engine whose capability and strength has been spurred on primarily as a result of lessons learned in competition.
However, beyond the highly-modified, competition-bred, turbocharged four-cylinder engine, the Lancer Evolution also includes the amazing road holding capability of a race proven full-time all-wheel-drive system designed to maximize the engine’s output after the flywheel. A robust five-speed manual transmission has been designed to feed power to a viscous coupling transfer differential that splits torque equally (50:50) between the front and rear bevel-gear differentials. The engine’s torque is then transmitted to the wheels by front and rear bevel gear style differentials. The front differential is an open-type bevel gear unit, while the rear uses an independent rear suspension type differential with a limited slip bevel gear type assembly that uses friction plates to control wheel slippage. On slippery or uneven surfaces, the viscous coupling transfer differential and the front and rear differentials distribute engine torque to control wheel slippage and maintain traction.
This reliable drivetrain design effectively distributes torque to each wheel as needed to help the vehicle achieve optimum traction and control on all surfaces. The Lancer Evolution’s full-time, all-wheel drive system endows this high-performance sedan with increased grip and elevated handling limits, inspiring confidence behind the wheel and making sporting driving enjoyable to broad skill levels.

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Lancer Evolution drivetrain layout.

Engine
The Lancer Evolution sedan is powered by a strong, highly-refined version of the venerable, turbocharged, intercooled, 2.0-liter, 16-valve, DOHC, four-cylinder, 4G63 engine that has powered the previous seven versions of the Lancer Evolution sedan. In the U.S. market, this turbocharged four-cylinder motor first gained notoriety as a performance engine with its appearance between the fenders of the first generation Eclipse (1989-1994). Within the tuner community, these engines became popular for their reliability, power and a responsiveness to tuning that facilitated increases in output. In the Lancer Evolution sedan series each subsequent version of the 4G63 showed increases in power and torque, while improving drivability with reductions in turbo lag that broadened the engine’s torque and responsiveness.
The U.S.-specification Lancer Evolution’s 4G63 utilizes a revised and reinforced cast iron block filled with a reciprocating assembly consisting of a durable forged steel crankshaft, and 150 mm forged steel connecting rods; cylinders are filled with low compression (8.8 to 1) pistons cast in durable, lightweight AC8A (T6) aluminum designed to withstand forced induction cylinder pressures for an extended period.
The cylinder block’s five main bearings are reinforced with a supportive bearing cap girdle that helps stabilize the crankshaft at high speeds. The rugged forged steel crankshaft features a 61 mm main journal diameter and 57 mm rod journal diameter, large enough to endow the crank with superior strength, and yet not so large a surface area to present a challenge for lubrication at high rpm. The bottom of the engine block is also equipped with oil jets that open under high oil pressure levels to help cool the bottom of the piston and provide additional lubrication to its friction surfaces. With an 85.0 mm bore and an 88.0 mm stroke, this engine displaces 1,997 cc that is electronically limited to 7,000 rpm. Power production for the turbocharged, intercooled, 16-valve engine is 271 horsepower at 6,500 rpm and 273 lbs.-ft of torque at 3,500 rpm.
This engine’s aluminum cylinder head casting features intake and exhaust ports designed to maintain higher intake mixture and exhaust gas flow velocities and bolster the engine’s responsiveness in the lower to mid-range engine speeds without compromising high speed intake and exhaust airflow characteristics. With four-valves per cylinder, the engine exhibits a high-level of air flow efficiency that, with the help of a metal reinforced, three-layer head gasket, makes the engine package more capable of withstanding the high cylinder pressures associated with a forced induction application.
Turbocharger
The rugged 2.0-liter, four-cylinder engine relies on turbocharged and intercooled forced induction to produce more power than most V6 engines available today. Attached to the Lancer Evolution’s high-flow, thin-wall vacuum cast stainless steel exhaust manifold is a Mitsubishi TD05HRA-16G6-9.8T twin scroll turbocharger.

4G63’s twin-scroll turbocharger is attached to a high flow exhaust manifold helping to improve the compressor’s efficiency.

With the twin scroll turbine housing design, the exhaust gases flow through the exhaust manifold into a pair of passages, instead of a single larger volume passage.This helps the cast iron turbine housing to smoothly and efficiently direct the exhaust energy over the turbine wheel, yielding improvements in the engine’s low-to-mid range engine throttle response and torque production. The compressor side of the turbocharger features a lightweight heat resistant Inconel turbine wheel with reduced mass to help the unit produce higher boost levels with improved engine response.
The turbocharger is equipped with an internal wastegate that helps regulate boost level by acting as a bypass valve to relieve exhaust gas flow and reduce boost pressure. At 3,500 rpm, under wide open throttle, the turbocharger produces a peak boost pressure of 19 psi. The turbine wheel is attached to an efficient compressor wheel via a shaft that is lubricated by pressurized engine oil. A large capacity engine oil cooler helps control temperature and maintain the viscosity of the Mobil1® synthetic oil used in this high-performance engine to ensure many miles of durable service. The lightweight compressor wheel ingests and pressurizes ambient air that is passed through a large front mounted intercooler which lowers intake air temperature to help produce more power and reduce the potential of detonation.

Large, external air-to-oil cooler helps control oil temperatures and promote engine and turbocharger durability.The efficient twin-scroll turbine housing design directs exhaust flow over the Inconel turbine wheel.

Engine Weight Savings

Lancer Evolution’s engine features numerous weight savings refinements that help improve the vehicle’s performance.

In the interest of refinement and increased performance from the Lancer Evolution engine, Mitsubishi engineers have progressively improved the design with numerous weight saving measures. The Lancer Evolution’s engine is equipped with a super-lightweight cast magnesium rocker arm cover, which, along with hollow camshafts, helps reduce the engine’s top-side weight and reduces it’s center of gravity in the chassis. The reduced mass of the hollow intake and exhaust camshafts, along with more compact, tapered, bee-hive shaped valve springs, featherweight aluminum retainers, and lighter, natrium-filled exhaust valves reduce valvetrain inertia and help improve the engine’s responsiveness. The stainless steel, natrium-filled exhaust valves also help lower the temperature of the bell end of the exhaust valve by retaining less heat. The cylinder head is also equipped with hardened, sintered metal exhaust valve seats that are better able to resist the forces of heat and pressure.

The Lancer Evolution motor utilizes hollow, belt driven camshafts that help reduce valvetrain weight and inertia.

The 2.0-liter engine’s elastomer-filled, vibration-dampening crankshaft pulley is manufactured from aluminum and reduces pulley weight by 340 grams over the standard Lancer engine’s pulley. The engine’s accessories are powered by a single serpentine belt system driven by the crankshaft pulley. In addition, the engine utilizes a more compact balance shaft arrangement to help give a smooth-revving character while reducing the power-robbing inertia of the balance shafts.

The turbocharged 4G63 engine equipped in the Lancer Evolution sedan uses high-flow, natrium-filled exhaust valves to help reduce valvetrain mass and help reduce the amount of heat retained by the exhaust valve’s bell shaped end.

Compared to the Lancer sedan’s springs and retainers, the valve springs used on the Lancer Evolution series are smaller, stronger and with the help of an aluminum retainer, reduce valvetrain mass.

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The larger, cast magnesium Dual Overhead Cam cover weighs less than the smaller Single Overhead Cam unit that appears on the base Lancer engine.

Lightweight aluminum crankshaft pulley helps reduce parasitic drag and drives a single-belt serpentine arrangement that spins all of the accessory pulleys.

Fuel Injection

The Lancer Evolution is equipped with a computer-controlled multi-point fuel injection system incorporating a flow rate design to meet the increased fuel demands of this turbocharged, competition-spirited engine. Four high-flow injectors supplied by a heavy duty, high pressure electronic fuel pump deliver a precisely measured, atomized spray pattern to a short runner, pressurized intake manifold to filter intercooler ambient air to the cylinder head’s intake runners.
Casting modifications to the Lancer Evolution’s intake manifold and port layout have been applied to help direct the incoming air on the straightest possible path to the cylinders to achieve the best fuel mixture. To accommodate the Lancer Evolution’s full-time all-wheel drive system, the vehicle is fitted with a 14 gallon (53 liter) saddleback fuel tank.

Four high-flow injectors distribute fuel to each intake port.

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Air Intake
The Lancer Evolution sedan is equipped with a cold air induction system that draws ambient air from the leading edge of the aluminum hood into a thermoplastic box containing a low-restriction filter element. The positioning of the air cleaner assembly required that the battery be repositioned to streamline the intake ducting. The turbocharger draws air from the air filter cleaner assembly and compresses the air, making it denser. It is then forced into the engine’s combustion chambers. The compression of air causes it to heat and reduce the air charge’s temperature. Air-tight ducting transports the intake air through a large capacity, highly efficient air-to-air intercooler with a fin and tube design which has been optimized to lower air temperature without a significant pressure drop.
Further aiding the intercooler’s temperature-lowering capability is a water spraying system that can operate in manual or automatic modes. Manual water spraying projects a cold water spray over the finned, aluminum surface for as long as the center console located button is pressed. Automatic mode delivers two-seconds spray of cold water every five seconds. The compressed air, with its temperature significantly reduced, flows from the intercooler to the cast aluminum intake manifold via gently-contoured, large diameter aluminum pipes. The intercooler, with its capability for reducing air temperature, improves engine efficiency by helping provide denser, cooler air that helps reduce the possibility of detonation at high boost levels.

Exhaust system
The Lancer Evolution sedan is equipped with a large diameter, low restriction, stainless steel exhaust system. A large diameter exhaust down pipe flows into a single high-performance catalytic converter through gently bending 60.5 mm tubing. The exhaust system’s main muffler includes a back pressure valve that reduces exhaust noise at lower speeds while opening to increase flow and reduce backpressure at higher speeds. In addition, the exhaust system uses sound absorbing pre-mufflers to improve exhaust while reducing high frequency noises. The exhaust system terminates in an attractive large diameter (4-inch) single, round tailpipe that is chrome plated and angle-cut for improved appearance.

No.
Exhaust System Detail

Description

1
Front pipe spherical connector
This spherical pipe connector eliminates an inefficient flexible steel mesh tube and improves performance by reducing back pressure.
2
Main muffler
The high flow main muffler includes a variable back pressure valve to reduce low speed noise and reduce high speed exhaust flow back pressure.
3
Large diameter exhaust tubing
Large diameter 60.5 mm stainless steel tubing helps reduce back pressure.
4
Pre-silencers
A pair of pre-mufflers helps improve the exhaust note by removing high frequency tones.
5
Large single tailpipe
A large 101.6 mm chrome-covered, angle-cut exhaust tip adds a sporty look.

Manual Transmission
The Lancer Evolution sedan is equipped with a rugged five-speed transmission well-suited for duty behind the vehicle’s high-output, four-cylinder engine. The transmission’s internal gears and shifting mechanism are reinforced to handle the engine’s increased torque production. The Lancer Evolution sedan’s W5M51 transmission is equipped with triple syncros on the first two gears, a double syncro on the third gear, and single syncros on the fourth and fifth gears. The additional syncros improve engagement and shifter feel during high–speed shifts, and help prolong gear durability. In addition, high-strength, surface treated materials are used for the construction of each of the angle-cut gears to help this assembly withstand the stresses encountered during sports driving. The Lancer Evolution sedan uses an increased capacity 240 mm clutch disc (versus 215 mm unit in the base Lancer) that engages a lightweight flywheel’s surface with the help of an upgraded pressure plate and a synthetic fiber clutch disc friction surface.An automatic transmission will not be available for the Lancer Evolution sedan.
The transmission’s closely-spaced gear ratios are optimized to help maintain engine speed between shifts, and keep the engine revving in the most effective portion of its powerband. A numerically high 4.529 to one final drive ratio also helps improve the vehicle acceleration, and combined with the closely-spaced transmission ratios, helps maintain engine revolutions in the fatter end of the powerband, and helps launch the car out of corners.

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Lancer Evolution Sedan Five-Speed Transmission

Engine
4G63 D4 i/C T/C
Drivetrain
Full-time All-wheel-drive
T/M type
W5M51
Clutch
Type
Dry, single plate diaphragm/ hydraulic pull-type actuation
Cover
Push Load (N)
9320
DIsk
Diameter/ width
240mm x160mm
Surface Material
G114-synthetic fibers
T/M
Type
Full-time syncromesh
Gear Ratios
(with syncros)
1st
2.928 (Triple)
2nd
1.950 (Triple)
3rd
1.407 (Double)
4th
1.031 (Single)
5th
.720 (Single)
Reverse
3.426 (Double)
Final Drive Ratio
4.529
Differential Size
Front
#4.2
Center
#6.1

Manual Shifter
Lancer Evolution uses a competition-spirited shifter designed with a shorter stroke than the Lancer sedan. The action of the shifter is refined to provide quicker, more aggressive shifting that occurs during sport driving. The flexible support bushing at the shifter end of the actuating cable is more rigid to improve the firmness of the shifter’s feel. The short stroke shifter’s round, leather covered knob also provides superior tactile control and is weighted to improve shifter movement through the gate.

Transfer Differential
The Lancer Evolution sedan utilizes a competition proven viscous coupling and bevel gear transfer differential design. This design splits torque equally (50:50) between the front and rear wheels. The modified viscous coupling unit in the Lancer Evolution sedan features an elevated output shaft opening that matches the flat design of the front suspension crossmember. The transfer differential’s cast iron casing is cast with additional reinforcing ribs that help strengthen the assembly and improve durability. On slippery road surfaces, the viscous coupling unit limits the differences in torque distribution and automatically adjusts the power distribution ratio as required by the traction demands of the wheels to help deliver optimal traction and road-holding performance at all times.

The ruggedly-built transfer differential uses an elevated output shaft opening to help clear the reinforced front suspension cross member.

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Front and Rear Differentials
In the interest of delivering the ultimate traction and road holding, the Lancer Evolution performance sedan is equipped with a pair of rugged bevel gear mechanical differentials that directing driveline power to each of the wheels, and help the vehicle maintain traction on all surfaces. The front differential is an open-type bevel gear unit, while the Lancer Evolution’s rear differential is a reliable, #4.2-sized mechanical, plate-style, limited slip differential unit. The driveline and differential arrangement has proven itself successful in competition beneath the race-oriented Lancer Evolution RS model that had served as the basis for Lancer Evolution race car preparation in the past.

Illustration of mechanical limited slip rear differential that uses metal friction discs and pressure rings load the center bevel gear arrangement and control traction and limit wheel slippage.

Exploded view of a mechanical, plate-style limited slip differential. The design of friction plates allow little in the way of wheel slippage and help the center bevel gearset provide optimal torque transfer for acceleration and high speed cornering. Such LSD units have proven extremely reliable in competition.

Propeller Shaft and Drive Shafts
The Lancer Evolution sedan is equipped with a rugged three-piece, four-joint propeller shaft that transfers engine power from the front to the rear differentials. This propeller shaft uses hardened shaft sleeves, reinforced yokes and upgraded joints to make the assembly more reliable in competition, and performance driving. The transmission of power from the differentials to the wheels hubs are handled by driveshafts constructing using larger diameter lengths of high-strength, heat treated steel. The front shafts employ heavier duty constant velocity joints, and surface treated spline ends that are supported using large diameter bearings designed to handle the additional output of the Lancer Evolution motors in competition.

Lancer Evolution driveshaft transmits power to the wheels from the differential and are constructed using larger diameter, surface treated shafts and heavier duty constant velocity joints. Larger diameter bearings help support all four of these driveshafts.

Suspension

A high-performance vehicle’s increased power levels necessitate a more capable suspension and braking system that has been suitably reinforced to fully exploit and maximize the engine’s capability. The 2003 Mitsubishi Lancer Evolution’s high-performance compact sedan relies on a highly modified evolutionary design of the Lancer sedan‘s competent suspension arrangement to satisfy the demands of world rally competition and high-performance driving. The vehicle’s widened track (1,515 mm) and use of low-profile, soft compound tires improve handling stability, initial response and help raise the Lancer Evolution’s cornering limits. The basic Lancer suspension design is reinforced in several locations to improve the performance of this competition-oriented vehicle’s undercarriage. For instance, a stiff, reinforcing bar spans the distance across the front suspension crossmember and helps increase the front suspension mounting point stiffness, as well as reduces the vehicle roll in high-G turns, and improves steering feel and response. The competition-proven combination of front Macpherson struts and rear multi-link suspension design, is modified for increased rigidity, reduced mass and an optimized roll center that endows the Lancer Evolution with excellent straight line stability as well as superior turning capability, road holding, and responsiveness.

The Lancer Evolution replaces the Lancer sedan’s stamped-steel suspension components with lightweight aluminum forgings to improve suspension performance and durability.

Front Suspension
The function and capability of Lancer’s basic front Macpherson strut suspension design has been enhanced with unique-for-Lancer Evolution lightweight components and reinforcing measures that are the result of careful study of the suspension movement, their mounting points, and flexural tendencies of components during competition. The Lancer Evolution sedan relies on durable, large diameter, gas-charged, inverted struts, extensive reinforcement of the unibody hard points related to the suspension component mounting, and the use of forged aluminum construction for critically stressed suspension components. The oversized, off-road capable, inverted struts help ensure smoother shock absorber action during high speed corners as well as allowing for the specification of a larger capacity strut insert that can better withstand the punishment of spirited driving.
A lightweight forged aluminum lower control arm helps reduce the load on the coil springs and strut; the reduced mass of this large aluminum component allows the suspension to react much quicker to surface changes. The Lancer Evolution front suspension uses a rugged 24 mm stabilizer bar equipped with pillow-ball bushing end-links that offer better movement and improve the stabilizer’s efficiency, function and stability. A robust, supportive, steel, unibody crossmember connects the left and right lower control arm mounts and helps increase lateral rigidity with additional stiffness to improve steering feel and response. This component is reinforced by a strong, inflexible bar that interconnects the lower control arm mounting points to provide additional support, strength, and help better maintain suspension mounting point geometry in the face of high torsional and flexural loads experienced during high speed cornering.

Forged aluminum used in the construction of the lower control arm and the front knuckle arm add strength and unsprung reduced weight. The function of these lightweight pieces is enhanced by using pillow-ball mounts and ball joints to reduce the friction of their movement. In addition, larger bearings are integrated into the hub to help improve reliability and durability under rigorous conditions. The redesigned strut insulator helps reduce vibrations transmitted to the unibody that could interfere with steering feel, and the top of the strut mount relies on a more stable metal bearing to help control movement.
The Lancer Evolution utilizes a quick-ratio (13:1) power assisted rack-and-pinion steering system to produce faster steering response and improved maneuverability. The steering gearbox mounting position has been lowered to achieve greater linearity in suspension toe changes, and offer greater turning stability. The Lancer Evolution’s alignment settings are specified to provide superior control, stability and deliver excellent response from the chassis, fully exploiting the vehicle’s wider track and optimized roll center to improve cornering.

Suspension design and materials changes from Lancer sedan to Lancer Evolution specification.

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Rear Suspension
The Lancer Evolution sedan elaborates on the Lancer sedan’s multi-link trailing arm arrangement with a more rugged multi-link system that relies on a modified wishbone design to add stability and greatly raise the vehicle’s cornering limits. The competition-minded, optimally-tuned rear suspension design relies on the extensive use of strong, lightweight forged aluminum alloy components for reduced weight, and improved strength for support and mounting bracketry. Just as with the front suspension, reduced mass of aluminum components and use of reduced friction ball joints and pillow ball mounts on all suspension articulation points help the suspension design exhibit superior stroke characteristics and lightning quick response.
The Lancer Evolution’s multi-link rear suspension utilizes an aluminum A-shaped upper arm that combines with three I-shaped aluminum control links that include a large, high strength, forged aluminum trialing arm that mounts to the underside of the body using an oversized, hardened rubber bushing. These I-shaped arms and the trailing arm are positioned to provide fast-reacting suspension travel while controlling the lateral and vertical forces that could upset suspension geometry and handling. Each of the links and trailing arms utilize a combination of hardened rubber, metal shell encased bushings and large diameter ball joints at the suspension knuckle (or wheel) end or low-friction pillow ball bushings, which are attached to the unibody by the large aluminum crossmember that spans the distance between the rear suspension components. This highly rigid crossmember is the largest aluminum forging on the Lancer Evolution, and supports the entire rear suspension assembly. The stabilizer bar’s precision pillow-ball mounts and control link‘s hardened bushings are designed to maintain precise, firm, deflection-free suspension travel with movement that is controlled for directional forces that could adversely affect handling.
A large, robustly-constructed, aluminum crossmember is the single largest rear suspension component. The diameter of the rear shock absorbers and stabilizer bar (22 mm) have been increased to help ensure durability and stability during high cornering loads.
The optimization of shock absorber dampening, rear coil spring rate, and the compression characteristics of the rear bushings also help improve cornering response, and increase control through the vehicle’s cornering limit. The rear suspension bearings ride in a highly rigid hub assembly that, combined with the rear cast iron knuckle arm provides increased camber rigidity, as well as improved durability in competition.

Lancer Evolution’s shocks are a larger diameter specification for improved durability. The suspension moves using a combination of firm rubber or very stable pillow ball bushings.

Competition-Ready Braking

The Lancer Evolution relies on race-proven Brembo® calipers and rotors to provide superior feel of rigidity, control, anti-fade braking performance.

The Lancer Evolution high-performance sedan utilizes premium braking components designed by Brembo®. As a vehicle designed to conquer the higher tiers of rally competition, it seems natural that every Lancer Evolution be equipped with large Brembo® aluminum opposed calipers and rotors at the front and rear of the vehicle. The front ventilated discs measure 320 mm (12.65 inches) in diameter and the rear ventilated discs measure 300 mm (11.8 inches) in diameter. The front aluminum opposed caliper relies on a proven four-piston design while the rear brakes employ a large diameter two-piston design. The Lancer Evolution sedan is equipped with tandem vacuum boosters and master cylinders that create a reduced pedal ratio that improves pedal stiffness and modulation to achieve better braking balance with improved pedal effort and feel.

The Sports ABS relies on multiple vehicle sensors to provide data to the ECU that governs solenoid action to help control the brakes on a variety of surfaces or conditions. Combined with the EBD system, the result is improved driver control.

Image illustrates the handling advantages of the Sports ABS system with EBD.

All Lancer Evolution sedans are equipped with a Sports ABS system that offers four-wheel independent brake control that uses computer controlled lightweight hydraulic actuators to optimize brake forces for each wheel to improve braking stability in all conditions. A steering wheel angle sensor works in conjunction with the wheel speed sensors and longitudinal and lateral G-sensors help optimize ABS control to match the specific driving conditions.

The Lancer Evolution’s Sports ABS works in conjunction with an Electronic Brake Force Distribution system (EBD) to help electronically optimize performance of the front and rear brakes to provide optimal control. The use of the EBD systems shortens stopping distances and helps improve anti-fade characteristics under heavy braking conditions.
Wheels and Tires
In the interest of achieving the greatest handling performance, the Lancer Evolution is equipped with large diameter wheels and tires. The 17-inch x 8-inch Enkei® wheels are a lightweight, six-spoke, aluminum design that offers substantial weight savings over previous designs. Alloy wheels employ the latest in wheel construction technology by adding a spinning process to the ribs, making them thinner, stronger and reducing weight by 10 percent, versus traditional casting methods.These wheels are covered in P235/45R-17 tires that are exclusively for the Lancer Evolution by Yokohama Tire of Japan. The construction of these wide P235/45R-17Yokohama ADVAN™ A046 tires utilizes a unique, high grip rubber compound and a tread pattern that are ideally suited to help maximize the vehicle’s superior handling capabilities, and help extend the cornering limits.

Unibody and Safety

Much of the amazing performance and handling capability that drivers can expect to enjoy behind the wheel of the 2003 Mitsubishi Lancer Evolution sedan is attributed to the fundamental design strength and sound construction of the basic Lancer sedan unibody. This sophisticated unibody structure serves as the basis upon which the high performance Lancer Evolution sedan is manufactured. The front-wheel-drive Lancer sedan is a sure-footed, nimble compact sedan that offers excellent ride quality and handling thanks in large part to the rigid, flex-resistant design of its strong, reinforced-steel unibody. This welded, all-steel structure utilizes Mitsubishi’s RISE (Reinforced Impact Safety Evolution) design to help create a strong passenger compartment that is surrounded by energy absorbing front and rear structures. Furthermore, by employing modern manufacturing methods such as the use of MASH seam welded members to produce multi-layered, stress-bearing structures that use several layers of thinner welded metal to create a stronger stress bearing chassis component, the unibody’s strength is optimized while lessening the weight penalty.

The Lancer Evolution unibody begins on the same assembly line as the Lancer Cedia sedan, and owes a great deal of its performance to the sound design of the basic Lancer unibody.

With a clear focus on achieving success in competition, the transformation of the Lancer economy sedan into a Lancer Evolution homologation race vehicle requires that numerous structural reinforcement measures be implemented to strengthen Lancer’s rigid unibody and make it suitable for the rigors of world-class competition. Mitsubishi equipped this race-bred sedan with the strongest, most torsionally rigid unibody structure found in the product line-up. As a result, tests have shown a reduction in the flexural forces transmitted through the vehicle’s floorpan, which helps realize better suspension performance, handling, ride quality and safety.

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More Metal-More Welds
Engineers relied on additional strategically placed welds, thicker metal materials and several carefully placed steel reinforcing members to improve the torsional strength and rigidity of the Lancer Evolution sedan. The design and positioning of these steel reinforcing supports are the result of lessons learned from extensive computer modeling, and the real-world application of such chassis strengthening measures during the competition careers of previous generation Lancer Evolution sedans. These structural measures help the Lancer Evolution’s unibody double the torsional rigidity of the base Lancer sedan as well as improve on the platform’s flexural rigidity by 1.6 times. The Lancer Evolution’s competition-proven unibody structure is up to the challenge presented by the repeated punishment the vehicle is expected to encounter on the rally circuit, but the unibody’s enhanced structural soundness helps the vehicle’s performance and response under a variety of conditions.


Steel Strength Reinforcement

No.
Component Detail

Description1, 2
Front suspension mount
Four additional spot welds on each side of the panel increases the rigidity of the body panel connections that comprise the suspension mount. Ring-shaped reinforcement metal was added to the top of the strut mount surface to help strengthen and stabilize the suspension mounting. The strut tower panel itself is constructed entirely from thicker gauge metal for improved strength.
3
Strut brace mount
A reinforcing member added within the top of the vehicle’s cowl, located at the center of the strut tower bar connection helps increase the strength and stability of the strut tower bar’s cowl connection.
4
Front deck crossmember mount
The front deck crossmember, which had previously been added to the driver’s side, is extended through to the passenger side of the dash panel bulkhead, and helps reduce the effects of flexural or twisting forces acting on the unibody.
5, 6
Rear suspension mounting point
Five additional welds are added to the reinforcement in addition to thicker ring-shaped sheetmetal that contacts the top of the rear strut’s spring perch, and help further stabilize rear suspension movement.
7
Additional rear suspension support
A reinforcing member added to the top of the rear wheel housing helps increase the Lancer Evolution’s body rigidity and helps add support to an area that offers secondary reinforcement to the suspension mounting area.
8
Wheel housing support
Additional material added to the side of the rear wheel housing helps increase the rigidity of this area of the body, and provides additional support to the panels that support the suspension.
9
Bottom of center pillar
A large reinforcing member welded to the outer panel side of the bottom of the center pillar helps strengthens the connections between the upper and lower body assemblies.
10
Lower center pillar
A large reinforcing member has been added to the inside of the center pillar at the bottom of the structure where the pillar connects with the lower portion of the vehicle.
11
Rear floor panel
The rear floor panel was completely redesigned to accommodate the increased size of the fuel tank, and its construction includes the use of thicker metal panel material to help reduce flex.

Several areas of the unibody that are critical to the Lancer Evolution chassis’ performance in competition have also been reinforced or modified to help improve the vehicle’s competitiveness in rally competition while enhancing the function and performance of the vehicle’s suspension. For instance, both the Lancer sedan and the Lancer Evolution variants utilize MASH seam welded construction, a process that relies on multiple thin sheets of welded steel instead of one larger, heavier gauge piece, for the front subframe rails, and the B-pillars to help these vital stress-bearing unibody structures achieve optimal strength without a major weight penalty.
Front-end Vehicle Detail
With engineers focused on designing a vehicle that maintains the most stable and consistent suspension geometry under all conditions, the Lancer sedan utilizes a pipe and thru-hole construction for its suspension mount design to help increase the rigidity of the front suspension mount. This same effective design is carried over to the Lancer Evolution, which can rely on this suspension mounting design to withstand the demands of competition.

The Lancer Evolution sedan includes the placement of an additional welded steel member that acts as a stress-dispersing gusset connecting the top of the inner fenderwell panel member of the front subframe to the bottom of the A-pillar. This thoughtfully positioned, welded piece of metal helps control both lateral and vertical forces acting against the subframe and the dash bulkhead as the vehicle travels over the most unforgiving terrain.

Mitsubishi engineers sought to offset the weight of the numerous steel reinforcing supports by employing weight-conscious construction for some non-load bearing structures such as the aluminum front fenders and the vented aluminum hood. The placement of these lightweight panels at the vehicle’s front half, help relieve front end weight bias, and reduce the vehicle’s center of gravity to help improve the vehicle handling balance and response.

Weight reducing construction as well as use of lightweight aluminum for other non-load bearing members, including the fender and hood help offset the additional weight of many of the vehicle’s steel structural reinforcements.

Rear Vehicle Reinforcement
In the interest of improving rear suspension performance, structural details at the rear of the unibody are addressed to improve rigidity, reduce flex, and allow the modified suspension to perform under the stress of competition. Just as with the front half of the vehicle, the placement of additional welds, reinforcing members, and suspension mounting design is the result of the lessons learned by campaigning previous models of the vehicle in high-level competition.

No.
Component Detail

Description

1
C-pillar
A reinforcing support under the outer skin of the C-pillar attaches the pillar to the reinforced structure above the rear wheel well opening.
2
Rear trunk floor member
A welded member spans the center of the trunk floor and helps form a strong rear support along with the v-shaped support pillar.
3
Trailing arm mount
A reinforced trailing arm mount helps ensure the durability of this crucial, stabilizing suspension mount in all conditions.
4
Upper control arm mount
The upper control arm mount is attached to a stronger structure that has been constructed using thicker, more durable, bend resistant, heavier gauge steel.

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The Lancer Evolution’s rear suspension upper arm bracket is fabricated using thicker, very strong welded steel material to help maintain the correct suspension geometry and movement over the roughest conditions. In addition, the vehicle’s rugged rear trailing arm is attached to the unibody at a reinforced location to help ensure this component’s precise function regardless of terrain.

Critical rear suspension mounting points are greatly reinforced or redesigned to improve their performance and durability in competition.

The Lancer Evolution’s rear shelf uses a v-shaped reinforcing structure to help stiffen the floorpan and reduce the flex of the rear unibody above the suspension and help stabilize the panels surrounding the rear suspension attachment points. The trunk area also includes an additional welded crossmember designed to control the twisting forces that could affect the trunk panel and help prevent the transmission of such torsional forces to the suspension points.

The large open unibody area beneath the rear glass and the trunk floor itself have been modified for additional rigidity to address twisting forces that could affect the panels connecting to suspension mounting surfaces.

Also in the interest of competition durability and performance, the Lancer Evolution sedan’s front and rear strut spring housings are constructed using a thicker more flex-resistant metal material that improves the strength of the mounting points and helps ensure consistent suspension performance under a variety of conditions. A sedan unibody’s large door apertures typically are areas of potential torsional and flexural weakness. To combat this, Mitsubishi engineers have added an additional 200 welds to the perimeter of these panels in comparison to the base Lancer sedan’s door openings.
The Lancer Evolution’s rear pillar achieves improved rigidity with the addition of a reinforcing member that connects the C-pillar to the top of the wheel housing’s reinforced unibody metal member -- another measure to increase the chassis’ resistance to twisting forces and support the panels that connect to the suspension mounting points.

This structural reinforcement helps control and distribute flexural forces above the wheel well opening and strengthens the unibody’s C-pillar above the rear suspension mounting points.

Safety

Lancer Evolution sedan undergoing crash testing.

The structural enhancements made to the Lancer Evolution’s unibody in the interest of improving the steel structure’s durability and rigidity in competition have also helped the vehicle realize a reduction in cabin deformation in the event of a collision. The vehicle’s competition- reinforced A, B and C pillars, as well as the increased floorpan rigidity, have augmented the strength and safety of the fundamentally strong Lancer unibody.
The Lancer Evolution sedan complies with all FMVSS regulations and is equipped with driver and front passenger airbags. The front seatbelts are equipped with pre-tensioners and force-limiters to help reduce the possibility of occupant injury in the event of a collision. All Lancer Evolution sedans come equipped with three-point seatbelts for all seating positions and child seat tether anchors located in the rear seats, rear child door locks, and a trunk entrapment release that would prevent children from locking themselves inside the trunk.
The Lancer Evolution’s HID headlight arrangement also utilizes a leveling function operated by the twist of a small knob located on the left of the I/P that helps control the potentially distracting effects of misdirected headlights into opposing traffic, and help improve road safety.

Seatbelt pre-tensioners help control the forward excursion of front seat occupants in the event of a collision

.
The front and rear color keyed bumpers have been upgraded to meet NHTSA requirements. These bumpers are supported with additional metal structure not found beneath the bumper of the Japanese domestic model Lancer Evolution.

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Preliminary Feature List

2003 MITSUBISHI

LANCER EVOLUTION
FEATURES AND OPTIONS

*Vehicle features and options subject to change without notice.
EXTERIORHigh-Intensity Discharge headlights with auto-offSProjector-type high beams headlightsSIn-cluster high-mounted fog lightsS2.5mph front & rear color-keyed bumpersSArgent (black) front grill mesh SFront center bumper air inletsSAluminum hood with heat extraction ventSAluminum front blister-type fendersSTwighlight side marker lampsSSide-turn indicator lightsSIntermittent variable wipers + washers, frontSIntermittent rear wiper and washerSColor-keyed folding power side view mirrorsSColor-keyed pull-type door handlesSCenter Roof-mounted antennaSClear-lense, jewel rear lamp cluster SDual-mode muffler with variable back-pressure systemS4" chrome-plated single tailpipeSFull-size color-keyed rear spoiler with black carbon-fiber airfoilSLow-profile color-keyed GT spoiler OTinted glass and windshield shade bandSElectric rear window defroster with timerSTinted solar control glassSWHEELS & TIRES 17” x 8" ENKEI™ lightweight aluminum alloy rimsSP235/45 ZR17 97W Yokohama™ ADVAN® A-046 high performance tiresSTemporary T125/70D17 spare tire mounted on a 17 inch steel wheelSINTERIORCustomized MOMO™ 3-spoke leather wrapped steering wheelSCustomized RECARO™ front sport bucket seats (black/blue tint insert fabric)SDark Titanium trim accents (HVAC, floor console panels)SWarm Titanium trim accents (I/P panel)SHeight adjustable steering wheelSIlluminated ignition key cylinderSLeather wrapped gear shift knobSLeather wrapped parking brake leaverSGlove compartment with lightSDual covered visor vanity mirrorsSFloor matsSRemote hood, fuel door and trunk releasesSPower windows with auto down driver's windowSINTERIOR (Cont'd)Power door locks with security logic and child proof rear doorsSFront door storage pocketsSCenter console with armrest and storage compartmentsSFront cup holdersS12-volt accessory outlet with illuminationSFront Map lightsSPower slide and tilt sunroofOManual heater & air conditioning with multi speed climate control fanSHighback rear seats with rear center armrest and cupholdersSAssist grips x3SCargo area light and trimSSAFETY & SECURITYFull-time AWD with viscous-coupled center differential and rear mechanical limited-slip differentialSDriver and front passenger air bagsSFront seatbelt pretensioner with force limiterS3-point seatbelts and headrest for all occupantsSRear door child safety locksSRear seat LATCH system (Lower Anchor and Tethers for Children)SFront and rear crumple zonesS4-channel, 4-sensor Sport ABS with EBD STrunk entrapment release handleSRISE Unibody constructionSAnti-theft Engine immobilizerSKeyless entrySINSTRUMENTS & CONTROLS 6 speaker, 140-watt Mitsubishi CD audio systemSIndash 6-disc CD changerA (April 2003)Full-scale black-faced, permanently red-illuminated instrument cluster with center-located 9000 rpm tachometerSDigital odometer and tripmeterSHeadlight leveling knobSAuto/Manual intercooler water spray switch SMECHANICALAll-Wheel Drive with viscous coupled center differential and mechanical rear limited-slip differentialSOversized front mounted intercooler with 2-nozzle auto-spray water cooling with manual control featureSEngine Oil CoolerSTwin-Scroll TurbochargerSBrembo™ Ventilated front and rear disc brakesSTubular Front Strut Tower BraceSPower-assisted quick-ratio rack-and-pinion steeringSSport ABS with EBDS*Vehicle features and options subject to change without notice.S = Standard, O = Optional, P = Package, - = Not available, A = Accessory

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Preliminary Specifications

2003 MITSUBISHI
LANCER EVOLUTION
TECHNICAL AND MECHANICAL
SPECIFICATIONS

*Vehicle features and options subject to change without notice.
ENGINEEngine Type2.0L I-4 DOHC Intercooled TurbochargedEngine Code4G63Valve TrainDOHC 16-valveDisplacement (cc/cu. in.)121.9 / 1997Bore x Stroke (in./mm)3.35 / 3.46Compression Ratio8.8:1Horsepower @ RPM (BHP)271 @ 6500Torque @ RPM (lbs-ft)273 @ 3500Engine BlockCast IronCylinder HeadsAluminumRedline RPM7000Valve CoverMagnesiumFuel SystemECI-MULTI electronic fuel injectionRecommended FuelPremium Unleaded Radiator (mm)700 x 375 x 35Air-to-air intercooler with 2-nozzle auto-spray water cooling with manual control featureStandardEngine Oil Type 100% Fully Synthetic Oil RequiredEngine Oil Capacity (qt/L)4.3 / 4.1Turbocharger TypeTD05HR-16G6-9.8T (Twin Scroll Turbine)Boost Press (WOT/3500)19.00 psiBoost Press (WOT/6500)16.24 psiTRANSMISSIONDrive TrainFull-time All-Wheel Drive with 50/50 viscous coupled center differential, front open-type bevel gear differential and a mechanical, plate-style rear limited-slip differential.Transmission Type (Syncho)5-speed Manual 1st2.928 (triple)2nd1.950 (triple)3rd1.407 (double)4th1.031 (single)5th0.720 (single)Reverse3.416 (double)Final Drive Ratio 4.529SUSPENSIONFrontInverted Macpherson Strut with forged aluminum lower control arms, stabilizer bar, front strut tower brace.Front Stabilizer Bar Diameter (mm)24RearForged aluminum Multi-link wishbone configuration using forged aluminum trailing-links and lateral-links and forged aluminum cross-member, stabilizer bar.Rear Stabilizer Bar Diameter (mm)22EXTERIOR DIMENSIONSWheelbase (in/mm)103.3 / 2624Length (in/mm)178.5 / 4534 Width (in/mm)69.7 / 1770Height (in/mm)57.1 / 1450Track, Front (in/mm) 59.6 / 1514Track, Rear (in/mm)59.6 / 1514Min. Ground Clearance (in/mm)5.5 / 140INTERIOR DIMENSIONSInterior Volume (cu ft) [w/ sunroof]105.4 [103.9]Passenger Volume (cu ft) [w/ sunroof]95.1 [93.7]Cargo Area (cu ft)10.2Maximum Seating Capacity5PASSENGER SPACEHead Room (Front) (in/mm)
(w/ sunroof)39.9 / 1013
39.1 / 993Shoulder Room (Front) (in/mm)54.1 / 1374Hip Room (Front) (in/mm)51.2 / 1300Leg Room (Front) (in/mm)43.0 / 1092Head Room (Rear) (in/mm)
(w/ sunroof)36.7 / 932
36.4 / 925Shoulder Room (Rear) (in/mm)53.3 / 1354Hip Room (Rear) (in/mm)50.2 / 1275Leg Room (Rear) (in/mm)36.6 / 930WEIGHTSGVWR (lbs/kg)4222 / 1915Curb Weight (lbs/kg) [w/ sunroof]3263 / 1480 [3298 / 1496]Weight Distribution (% f/r) 60 / 40TOWING CAPACITYMaximum Gross Trailer Weight (lbs)N/AMaximum Trailer Tongue Load (lbs)N/ASTEERINGTypePower-assisted rack & pinion (with quick gear ratio)Ratio 13.0:1Turning Circle – Curb to Curb (ft/m)38.7 / 11.8Turns – Lock to Lock2.1BRAKESFront Brake Type BREMBO™ Ventilated Disc, 4 POT caliperFront Brake Diameter (in/mm)12.65" / 320Rear Brake Type BREMBO™ Ventilated Disc, 2 POT caliperRear Brake Diameter (in/mm)11.8" / 300ABSStandard
4-channel 4-sensor Sport ABS + EBDSwept Area - front (sq in) 306.7Swept Area - rear (sq in)215.9Total Swept Area (sq in)522.6ELECTRICAL CAPACITIESBattery12 volt maintenance freeAlternator (Amps)90WHEELS AND TIRESWheel Type17 x 8JJENKEI™ lightweight one-piece aluminum alloy rimsTire SizeP235/45 ZR17 97W Yokohama™ ADVAN® A-046 high performance tiresSpare TireT125/70D17FUEL TANKCapacity (gal/L)14.0 / 53EPA FUEL ECONOMYCity/Highway (mpg/mpg)18 / 26Exhaust EmissionsFED Tier 1 & LEV compliantPERFORMANCE (Est.)Acceleration (0 - 60 mph)5 secondsAcceleration (1/4 mile)13.8 secondsLateral Acceleration (skid pad).96 gTop Speed (Est.)155 mphWARRANTIESBasic3 / 36,000Powertrain5 / 60,000Anti-corrosion7 / 100,000

[TRD-Power]

fuente :

http://evo.jedinite.com/docs/Evolution_Encyclopedia/

[GTTI]

solo por eso te ganaste tu calco del team mitsu buena info.

[TRD-Power]

Iniciado por GTTI

solo por eso te ganaste tu calco del team mitsu buena info.

gracias vos a ver si estan listas como las de bass en boost aloooooooooooooo 2368

como ya soy mitsu ahi ta la info


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[GIO07]

[jkimgt]

como ya sos mitsubishero ....


buenisimo thread

[BLADE]

buen thread, deberían unificarlo con el de borler

[domingo]

Exelente info, a ver cuando me compreo mi evo aunqse un evoIV, si ta bueno vos :-)

[Eurolover]

increible por la gran powta.... que EVOLUCION por dios

ese carro hay que respetarlo

Excelente thread

[ATODA MADRE O UN DESMADRE]

calidad sipuexxxx

[type-R]

buena info mucha ese carro hay que respetarlo

[juangarcia]

esto es de lo mejor......buenisima info

[JORGE-T6]

Se ve que te pasaste tu buen rato buscando toda esta info. Está buenisima.
Es interesante ver como ha EVOLUTIONado.