Quote:
Originally posted by Zoom
EliteGibson, the STi can handle much more powa than the Evo can on stock internals because the engine is beefier and built a little better. while the Evo is running 20psi stock to barely make 230-250 hp at the wheels, the Sti only runs around 14-16 psi stock to make around 260-275 hp with room for much more.
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I'm not sure I buy that. The 4g63 is about as beefy as 4-cylinders come. You can raise the boost to supreme levels with the stock internals and get to around 500 (just not with pump gas). The STi's advantage is it's not boosted to high heaven from the factory and can take more before detonation becomes a problem.