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      10-15-2012, 03:57 PM   #268
Drives: 335i
Join Date: Mar 2011
Location: My car is my home

Posts: 2,016
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Originally Posted by montreal red
Originally Posted by jgalaxy View Post
12psi street, 15psi track JB4
wow thats actually pretty low. peak boost with the stage 1 Cobb on the STI is 17.5 psi... i guess that straight 6 engine allows you to make more power with lower boost pressures.
335's run 8psi stock and the rule of thumb on this engine is 12 whp for each psi. So 15 psi( 7 psi increase) would be 84whp over stock. Pretty big difference!
A lo of people run 19 psi on their 335s with meth!
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