Quote:
Originally Posted by BYprodriver
Yes all M96 are at least 11:1 & a engine designed for forced induction like a 996tt has 9.6:1 or less.
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Why not just change the pistons for a different lower compression ratio? I've seen this done many times. I dropped mine down to 8.5:1 for more boost in the past (in other vehicles - don't want to turbo the boxster, personally)