KB 2.8H Pulleys
- Thread starter rdsnk46
- Start date
pully
andy,
i know i should get 17# boost with my 3-1/4" pully and lower od pulley with your kb kit. however, boost should be lower since i have full 3" exhaust with 1-7/8" headers. with that in mind, would you pulley down to get back up to 17-18 # boost? or leave it alone? i'm guessing with my full exhaust, my new kb setup may make 15.5# boost?
worth going to 2-7/8" pulley?
mark
andy,
i know i should get 17# boost with my 3-1/4" pully and lower od pulley with your kb kit. however, boost should be lower since i have full 3" exhaust with 1-7/8" headers. with that in mind, would you pulley down to get back up to 17-18 # boost? or leave it alone? i'm guessing with my full exhaust, my new kb setup may make 15.5# boost?
worth going to 2-7/8" pulley?
mark
It will creep at the top, I'd say you see 17.5-18 psi. I sold the next size up in boost to Skyhighsd, 3in. The lower and the 3in. shows 20.5 psi on my docs from Jim Bell. The only other pulley I have is the 2 7/8in and that would be 23psi which is way to much for the street.
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