Today, we will share with all of you the result of our research on the Evo X engine.The 4B11 DOHC 16V turbo MIVEC engine from the Mitsubishi Evo X is the latest talk of the town as engineers and performance tuners have lined up to get their hands on the new powerplant in hopes of unlocking the hidden mysteries that have shrouded the Mitsubishi powerplant.

So for today we will show the extensive details on the 4B11 T/C upper cylinder head.For your information, the 4B11 that found in the milder version Mitsubishi Lancer is rated at 152 hp and 146 lb-ft of torque, while the 4B11 T/C inline-four turbo found within the Lancer Evolution and ‘08 Lancer Ralliart sold in North America delivers a factory rating of 295 hp and 300 lb-ft of torque. Both engines sport the same 2.0-liter displacement but were designed and built by Mitsubishi engineers to handle two completely different power levels.

The 4B11 T/C was designed by Mitsubishi with a lower compression ratio (9:1) to handle boost and consists of numerous reinforcements to withstand a higher generated horsepower. The most significant change from the 4G63 engine to the new 4B11T was the change in material used in the block design. The 4B11 block, the first engine in the Lancer Evolution series that uses a die-cast aluminum cylinder block, is comprised of a lighter aluminum construction, which is considered a huge change compared to the previous cast-iron 4G63. Mitsubishi managed to save 27 pounds using the lighter aluminum from its previous cast-iron setup.

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