WillyWrong
New member
I bought a P2 and the slip-on 1.5" serpentine pulley and want to run it 4psi max (engine driven), and can not find any info on impeller speeds at low boost, but did find this forum, so hopefully someone can help?
Crank pulley is 6.2" with 6400 rpm redline, and impeller pulley is 1.5", which = 26,453.33 impeller speed, which I think is the upper limit. I can run a recirculated external wastegate, underdriven crank pulley, custom dual groove alt pulley, etc., but completely in the dark with what rpm the P2 should even be at since it won't be maxed out.
Anyone know the lowest rpm it can be run at and still build boost? Maybe someone can look at their boost guage at lower rpms and see when it's around 4 or 5 psi?
Thanks.
Crank pulley is 6.2" with 6400 rpm redline, and impeller pulley is 1.5", which = 26,453.33 impeller speed, which I think is the upper limit. I can run a recirculated external wastegate, underdriven crank pulley, custom dual groove alt pulley, etc., but completely in the dark with what rpm the P2 should even be at since it won't be maxed out.
Anyone know the lowest rpm it can be run at and still build boost? Maybe someone can look at their boost guage at lower rpms and see when it's around 4 or 5 psi?
Thanks.