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Old 12-10-2008, 07:28 AM   #12
PedroBMW
Hooked on Boost
 
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Join Date: Oct 2005
Location: Windsor, Ontario
Posts: 1,206
Quote:
Originally Posted by m50tech View Post
my friend has a 87 bmw and he was boosting and piston #3 bended the valve and ever since it has never been the same i just dont want to go throught that with my car i rather do my research right
you definitly don't wanna go down to 7:1, your car will be a dog. Piston/valve clearance is not really a very good justification for choosing what compression ratio you want to run.
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