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Old 10-07-2009, 01:19 PM   #10
enkeivetteenkeivette is offline
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Originally Posted by 94cobra69ss396 View Post
You also said you didn't have detonation before you broke the piston. Just because you can't hear it doesn't mean it's not happening.
True, but in hindsight I think I did feel it. I used to think I had an ignition problem, sort of a rough acceleration... you can search back and find threads about it. Now I don't have that any more. I'm thinking that was detonation.

My piston blew because of the 36 degrees of timing and the excessively high AFR. It was 15:1 at 5lbs, when I sealed it up and it boosted like it does now... who knows what the AFR went up to.

Also quench is less important in blown apps so I hear.



If Ben has less than ideal quench right now, which is likely with his high compression franken-LSX, than he can kill two birds with one stone. Lower the CR and get ideal quench.
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