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      11-10-2012, 03:25 PM   #27
m3an
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Drives: M3
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Quote:
Originally Posted by pbonsalb View Post
I would say at least 99.9%. There are only several built motor supercharged M3s that I have read of. Few people will spend another $10k to build a motor on top of the supercharger kit\ and you get only about 10% more power for spending twice as much money.

I had to comment this, but that's def off; no one I have seen w/ a built motor is running over 15-20psi and on a built LC motor that will make a very big increase.

I would def do a 9-10:1 over a built 12:1 all day long. Nicer to be able to run higher boost