according to hahn the 420A could handle 300 HP safely. That's a lot of power. Our internals are pretty strong but the rings are the weakest link I believe. 8 psi is the max I can recommend with a star kit from what I've heard from nameless. 8 psi should put you at around 220WHP maybe... he said 10 wasn't very safe.

But you are on to something if you lower compression you can run more boost, haha you'll just have to be the test rat to prove it hehe.... There's detonation that will kill your pistons and there's shear pressure that will kill em, hehe shear pressure is probably what your worried about cuz you can deal with detonation with timing, fuel mix, and AF ratio.

http://www.hadesomega.info -car specz and movies 95 Eclipse RS | 76' 280Z | 89' MR2 | 99 Neon | 91 Zephyr
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