evolut`ion

The Mitsubishi Lancer Evolution, colloquially known as the Lancer Evo or Evo ,is a car manufactured by Mitsubishi Motors. There have been ten official versions to date, and the designation of each model is most commonly a roman numeral. All of them share a two litre, turbocharged engine and four-wheel drive system. Evolution models prior to version VII were the homologation models for Mitsubishi’s efforts in the World Rally Championship. In order to follow these rules, the Evolution was based on the same unibody as the Lancer.

Lancer Evolution 1
The Evolution I was introduced in 1992 to compete in the World Rally Championship. It used the 2.0 L turbocharged DOHC engine and 4WD drivetrain from the original Galant VR-4 in a Lancer chassis, and was sold in GSR and RS models. The latter was a stripped-down club racing version that lacked power windows and seats, anti-lock brakes, a rear wiper, and had steel wheels to weigh approximately 155 lb (70 kg) less than the 2,730 lb (1,238 kg) GSR, while the former came with all of the conveniences of a typical street car. It came with Mitsubishi’s 4G63 engine producing 247 PS (244 hp/182 kW) at 6000 rpm and 228 ft·lbf (309 N·m) at 3000 rpm, The lancer has a 50 liter fuel capacity (11 uk gal) including the spare tank along with all wheel drive which would become a trademark on all Evolution models. 5,000 of the first generation Evolutions were sold between 1992 and 1993.

Lancer Evolution 2
The successful Evolution I was changed in December 1993, and was produced until 1995. It consisted mainly of handling improvements, including minor wheelbase adjustments, larger swaybars, bodywork tweaks including a larger spoiler, and tyres that were 10 mm (0.4 in) wider. The Lancer has a 50-litre fuel capacity (11 uk gal). Power output was increased to 256 PS (252 hp/188 kW) from the same engine and torque was unchanged for both GSR and RS models.

Lancer Evolution 3
August 1995 saw the arrival of the Evolution 3, which had several improvements over the previous models. New, more aggressive styling and a new nose molding improved the air supply to the radiator, intercooler and brakes. New side skirts and rear bumper moldings and a larger rear spoiler were added to reduce lift. Improved engine had higher compression ratio than before (8.5:1 to 9.0:1) and new turbocharger compressor (60 mm to 68 mm), which gave power output of 270 bhp (201 kW) at 6250 rpm, 228 lb·ft (309 N·m) of torque at 3000 rpm.

Lancer Evolution 4
The Lancer platform was completely changed in 1996, and along with it the Evolution, which had become extremely popular throughout the world. The engine and transaxle was rotated 180° to better balance the weight and eliminate torque steer. There were two versions available, The RS and GSR. The RS version was produced as a competition car with a limited-slip front differential and a friction type LSD at the rear. It also came with GLX seats and 16″ (41 cm) steel wheels as these were items that would be replaced by anyone entering the car into competition events. The RS also had wind up windows, no air conditioning, and a few extra brace bars to strengthen the chassis, one behind the front grill and the other across the boot floor. The RS also had a factory option of thinner body panels and thinner glass. The GSR and the RS shared a new twin scroll turbocharger which helped to increase power to 280 PS (276 hp/206 kW) at 6,500 rpm and 260 ft·lbf (352 N·m) of torque at 3,000 rpm. Mitsubishi’s new Active Yaw Control appeared as a factory option on the GSR model, which used steering, throttle input sensors and g sensors to computer-hydraulically controlled torque split individually to the rear wheels and as a result the 10,000 Evolution IVs produced all sold quickly.

The Evolution IV can be distinguished by its two large fog lights in the front bumper (option on RS version), and the newly designed tail lights on the rear, which became a standard design to Evolution VI, which would become yet another trademark of the Evolution series. This new generation was slightly heavier than previous Evos—the GSR in particular due to the added technology systems—but to counter this the car produced even more power—the weight of the RS being 1260 kg (2778 lb) and the GSR being 1345 kg (2965 lb).

Lancer Evolution 5
In 1997, the WRC created a new “World Rally Car” class, and while these cars still had to abide by Group A standards, they did not have to meet homologation rules. Mitsubishi redesigned the Evolution IV with this in mind and introduced the Evolution V in January 1998.
Many aspects of the car were changed such as:
The interior was upgraded in the GSR version with a better class of Recaro seat.
The body kit had flared arches at the front and rear and a new aluminium rear spoiler replaced the IV FRP version and gave an adjustable angle of attack to alter rear down force.
The track was widened by 10 mm (0.4 in), the wheel offset changed from ET45 to ET38 along with the wheel diameter which rose from 16″ to 17″ to accommodate Brembo brakes which were added to enhance braking.
In addition the brake master cylinder bore increased by 0.3 millimetres (0.01 in).
The engine was strengthened in a few areas and the cam duration was increased. The pistons were lighter with a smaller skirt area. 510 cc injectors were replaced with 560 cc injectors for better engine reliability due to more electrical “headroom” and the ecu was changed to include a flash ROM.
Furthermore, the turbocharger was again improved. Torque was increased to 275 ft·lbf (373 N·m) at 3000 rpm. Power officially stayed the same, at 280 PS (276 hp/206 kW) as agreed by Japan’s automotive gentlemen’s agreement that all cars would have 276 or less hp, but some claim horsepower was actually somewhat higher.

Lancer Evolution 6
The Evolution VI’s changes mainly focused on cooling and engine durability. It received a larger intercooler, larger oil cooler, and new pistons, along with a titanium-aluminide turbine wheel for the RS model, which was a first in a production car. Also, the Evolution VI received new bodywork yet again, with the most easily spotted change in the front bumper where the huge fog lights were reduced in size and moved to the corners for better airflow. A new model was added to the GSR and RS lineup; known as the RS2, it was an RS with a few of the GSR’s options. Another limited-edition RS was known as the RS Sprint, an RS tuned by Ralliart in the UK to be lighter and more powerful with 330 hp (246 kW).

Yet another special edition Evolution VI was also released in 1999: the Tommi Makinen Edition, named after Finnish rally driver Tommi Makinen that had won Mitsubishi four WRC drivers championships. It featured a different front bumper, Red/Black Recaro seats (with embossed T. Makinen logo), 17″ ENKEI white wheels, a leather MOMO steering wheel and shift knob, a titanium turbine that spooled up quicker, front upper strut brace, lowered ride height (with tarmac stages in mind), and a quicker steering ratio. Amongst other colours, the Evo VI came in either red(tommi mak only), white, blue, black or silver with optional special decals, replicating Tommi Makinen’s rally car’s colour scheme. This car is also sometimes referred to as an Evolution 6½, Evolution 6.5, or TME for short.

Lancer Evolution 7
In 2001, Mitsubishi was forced by the FIA to race in the WRC using WRC rules for building a car instead of the Group A class rules, and thus did not need to follow homologation rules. The Evolution VII was based on the larger Lancer Cedia platform and as a result gained more weight over the Evolution VI, but Mitsubishi made up for this with multiple important chassis tweaks. The biggest change was the addition of an active center differential and a more effective limited-slip differential, while a front helical limited-slip differential was added. Torque was increased again to 284 ft·lbf (385 N·m) with engine tweaks that allowed greater airflow, and horsepower officially remained at 280 PS (276 hp/206 kW).

The introduction of the Evolution VII also marked the first time an automatic drivetrain was included within the model lineup—the GT-A. Seen as the ‘gentleman’s express’ version of the visually similar VII GSR, the GT-A model was only produced in 2002 and had the following distinguishing interior and exterior specification: GT-A-only diamond cut finish 17-inch (430 mm) alloy wheels, clear rear light lenses and all-in-one style front headlights (later used on the Evolution VIII). The GT-A had the option of either no spoiler, the short spoiler (as later used on the Evolution VIII 260) or the thunderspoiler as used on the standard Evolution VII models. The most distinguishing feature was a smooth bonnet with no air-grills on it at all. Although offering inferior cooling capabilities, the bonnet was designed to give a cleaner line through the air with less air resistance at motorway speeds.

Interior could be specified with factory options of a deluxe velour interior, full leather or the Recaro sports seats. The GT-A interior was different in that it had chromed door handles, a different instrument panel (to show the gear selection) and chrome edged bezels around the speedo and tach. The GT-A also had additional sound deadening installed from the factory and the engine manifold and downpipe had been engineered to be quieter.

The 5-speed automatic gearbox had what Mitsubishi called “fuzzy logic”, which meant that the car would learn what the driver’s driving characteristics were like and would adapt the gear change timings and kick down reactions accordingly. The gears could be manually selected as with most tiptronics via steering wheel + and – buttons (a pair both sides) or via selecting the tiptronic gate with the gear lever. Power was down a little from the standard manual cars with a very usable 260 bhp (194 kW). The GT-A gearbox did not appear again in the Evolution VIII but has been installed in the estate version of the Evolution IX Wagon.