JDM AWD /// platform file
Mitsubishi Evo X build guide
4B11T · 2.0 turbo I4. What the stock hardware reliably supports, where it breaks first, and the fastest safe path to more.
The Mitsubishi Evo X makes 291 hp stock at roughly 3,500 lb (12 lb/hp). Its stock internals are good for about 480 hp, the fuel system for around 380 hp, and the stock turbo(s) flow about 360 hp. Below is the limit sheet carbuildcheck analyzes against, plus the platform's documented weak points.
01 Factory card
Stock power291 hp
Curb weight3,500 lb · 12 lb/hp
LayoutAWD
InductionTurbocharged
02 What stock parts support
Engine internals~480 hp
Fuel system~380 hp
Induction ceiling~360 hp
Clutch (manual)~340 hp
Transmission (auto/DCT)~400 hp
Cooling (sustained)~400 hp
Community-documented crank-hp planning figures, conservative by design. How these are used in the score →
03 Where it breaks first
The SST gearbox wants a TCU tune and a cooler once power climbs. The 5MT is the tuner pick for big builds.
Timing chain stretch on early 4B11Ts is documented. Verify the service history before boost.
04 The typical path
Stage 1 tune → intake → downpipe → intercooler → Stage 2 tune. Fueling before E85, driveline before sticky tires.
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