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GRSmotorsport · Apr 22nd, 2008, 11:01 PM

Quote: Originally Posted by Jaw_F430 (original)

Thats what I was thinking Sam as my map may end up at 8k redline. Boost shown on gauge after fitting few parts is 14-15psi

I'm running a 17% pulley with no problem at all (touch wood!). Wouldn't worry too much about the slight loss in boost. You want maximum BHP with the minimum amount of boost. I'm peaking at 15.5psi but still seeing 250-256bhp.

I'm not running a lighter crank pulley either.....

Apr 22nd, 2008, 11:01 PM	#4
GRSmotorsport MINI2 Senior My Classifieds Join Date: Nov 2003 Location: Yeovil Local Time: 11:53 AM Posts: 684 Offline	Quote: Originally Posted by Jaw_F430 (original) Thats what I was thinking Sam as my map may end up at 8k redline. Boost shown on gauge after fitting few parts is 14-15psi I'm running a 17% pulley with no problem at all (touch wood!). Wouldn't worry too much about the slight loss in boost. You want maximum BHP with the minimum amount of boost. I'm peaking at 15.5psi but still seeing 250-256bhp. I'm not running a lighter crank pulley either..... Graham