Old Dec 26, 2011 | 06:46 PM
  #18 (permalink)  
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grip grip
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Joined: Mar 2011
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From: TN
Default Re: Stacked pulleys - 23psi with no codes. :)

Originally Posted by latemodel21
my math suggests that a 69 mm pulley should add 2.5 psi

and a 70 mm should add 2 psi (to a motor running a 181 crank pulley)


(20 + 14.7) x 74/69 - 14.7 = 22.5

(20 + 14.7) x 74/70 -14.7 = 22

Chris
Looks like my math was off, but I don't mind. As long as I don't see any codes I'm happy. I can deal with track IAT's when I cross that bridge. I've already added a larger H/E as well as the stocker, so I've got a head-start on getting the temps under control.
 
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