Daily T/A

iTrader: (1)

What size pulleys would I need for around 10-12 psi? Mods are built block, no headers, cats, ati d1. Is this possible without belt slip? Couldn't find too much on the search.

Thanks,
Andy

NA$TY-TA

iTrader: (21)

Thats so hard to say because each motor is different......... what size pulleys do you have now and what rpm do you shift at??? That will tell us something.... there is no set pulley size for a boost #
Kyle

Daily T/A

iTrader: (1)

Right now I shift @ 6200 with a 3.85 pulley. I guess that I'll have to see. I'm thinking around 3.2 pulley? I won't know anything until about 2-3 weeks because the motor is being built. Oh yeah, if anyone has a 3.2 or somewhere around that size let me know.

Andy

Daily T/A

iTrader: (1)

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LSs1Power

iTrader: (5)

So now with a 3.85 pulley u are seeing only 5.5psi on a stock motor and stock headers? I dont think 3.20 will get u to 12psi on a built motor. 3.20 pullies give around 8-9psi on a LS1 with headers.