Mitsubishi Lancer Evolution X MR vs GSR - Mitsubishi 4G63 Engine

The new GSR is equipped with a robust, new five-speed transmission that is the strongest transmission yet to appear in the Lancer Evolution series. The cogs in the five-speed have been widened considerably and multiple syncros on every gear optimize this unit for higher horsepower outputs and track abuse. That the all-new engine design is more willing to support a revvier persona is another revelation. The previous 4G63 was a longer stroke (88mm) design versus the square dimensions of the new 4B11 (86mm x 86mm). The new cylinder head design, with direct acting valvetrain and higher velocity ports help the new Evo's turbo spool faster, offering improved response and torque (300 ft-lb). The aluminum construction of the new 4B11 might not allow tuners to reach the stratospheric power levels of the built-from-granite, eons old 4G63, but the engine is still very receptive to tuning and 400 horsepower has proven not to be out of the reach of the stock bottom end with bolt-ons and ECU tuning. The new Evo's 4B11 uses a unique semi-closed deck block, pistons by Mahle, and robust forged connecting rods attached to a forged crankshaft held in place by a thick girdle.

The new Evo's steering is as direct and sudden as ever (13.3:1), but now offers a much higher degree of control/refinement, seemingly shedding the IX's tendency to grab a seam in the road and lead you into the next lane. The brakes are still marvelous with enough stopping force to dislodge even the most stubborn booger. With its superior chassis, stiffer Tokico struts, rally derived forged aluminum suspension components, and the magical S-AWC system, the new GSR might just be the least expensive 1G car on the market for a base price of $32,990.