Introduced in 1991, Mitsubishi's seminal Evo (short for Lancer Evolution) rally automobile homologation exceptional was so far removed from its Lancer cousin that it barely accomplished as an "evolution" at all. Its powerplant and drivetrain, on the contrary, aphorism a host of changes over the agedness; Mitsu's incredible 4G63 powered every Evo produced for 15 senility until it was replaced by an all-new offering in 2007.
1992 Evolution 1
This earliest of all Evolutions received its powertrain as a transplant from its Galant VR4 cousin.
2007-Present Evolution X
As of 2007, Evo was officially a model of its own and no longer related to the Lancer in any way. It subsequently received its own bespoke engine, the 4B11T. While many bemoaned the loss of the venerable old 4G63, few could argue with the 4B11T's 295 horsepower and 311 ft-lbs. of torque, light weight (26 lbs. less than the 4G63), civilized demeanor, durability, high red-line and innate strength.Licence to its agnomen, Everyone successive begetting of Evolution came with an cumulation in influence, starting with the moment. The Gen II's higher-lift cams, increased boost coercion and modified exhaust were useful for an extra 6 horsepower over the preceding hour.
1995 Evolution III
Mitsu installed a fresh TD05-16G6-7 turbo in 1995, bringing horsepower up to 270 horsepower nevertheless maintaining the equivalent 228 ft-lbs. of torque as preceding iterations. This engine was otherwise unchanged.
1996 Evolution IV
The Evo's fourth siring maxim the aboriginal custom of Mitsubishi's pdq typical twin-scroll turbocharger, which helped to chop boost linger at low RPM and up thrust top extreme aptitude to 276 horsepower and a whopping 260 ft-lb. of torque. This was the inaugural year of Mitsubishi's adherence to Japan's "gentleman's Treaty" of 276 horsepower, intended to prevent a runaway turbo horsepower strike in the land of the Rising Sun. Subaru and Nissan similarly local their Impreza STi and Skyline models, respectively.
1997-98 Evo V
This generation used larger 560cc injectors in community of the preceding engine's 510cc injectors, which was also to accession engine reliability than bent. Although horsepower officially remained the identical 276 as the at the end year, torque was up to 275 ft-lb.
1999-00 Evo VI
Although Mitsubishi itself didn't silver the Evo's engine for this generation, their in-house tuning division Ralliart blessed firm RS Dash editions with Sufficiently additional boost To erect 330 horsepower.
2001-02 Evo VII
A fix of reworked intake ports, a less restrictive manifold, larger intercooler and better exhaust helped to increase airflow for this generation, while a slightly smaller twin-scroll turbo housing reduced boost lag even further. The end result was an agreement-limited 276 horsepower and 285 ft-lbs. of torque.
2003-05 Evo VIII
This was a big year for Evo; it was not only the rally-car's first time on American shores, it also came in several high-boost, "tuner" variations for export over seas. The Evo was offered in FQ320, FQ340 and FQ400 variants in Europe; the numbers carry on indicate the horsepower specifications for each trim level.
2006 Evo IX
This generation of Evo got Mitsu's MIVEC variable valve technology, boosting power output to 286 horsepower and 289 ft-lbs. while slightly increasing fuel economy and driveability. Mitsubishi actually produced an all-electric-powered Evo IV called the Evolution MIEV Test Vehicle. The MIEV used four 68 horsepower electric motors to produce a combined total of 276 horsepower, and successfully completed the Shikoku EV (Electric Vehicle) Rally in 2005.
Considered by many the small-block Chevrolet of turbo four cylinders, the 4G63 locate the template for nearly all destined Japanese four cylinder performance engines with dual overhead cams, multi-point fuel injection, four valves per cylinder, a Garrett turbocharger and a displacement of blameless under 2.0 litres. The first off date 4G63s came morals with "one shot" 250 horsepower and 228 ft-lbs. of torque.
