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      11-15-2022, 07:41 AM   #224
Michael9218
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Drives: 2007 Z4 M Coupe
Join Date: Oct 2012
Location: Woodstock, GA

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Quote:
Originally Posted by Westersund View Post
That's some really good numbers with stock internals. I know the stepped headers add around 10-11 hp compared to the stock Euro one's, how much difference does the dry sump do? Do you have underdriven auxiliaries? No cams?
Added underdrive pullies.
Stock cams.
I’ve heard the dry sump vacuum (10 in/hg) frees up about 10 hp on an S54. I didn’t verify.
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