On most ZR1 I use a 2.35/14% which would be just over 24000 rpm at 6800What is the max RPM you typically pulley the LS9 superchargers to?
I have a 9.55/2.65 on there now which will be overspinning it at high RPM.
I'm guessing it will make peak power at 66-6800 but will be able to rev much higher if necessary.
I'm planning E85 & a chiller to keep the air as dense as possible.
Cam is mid 230's/upper 240's on a 120 with .630/.600 lift.
Unfortunately, compression is only 9.25:1 as I did not want to excessively mill the heads or change pistons, which would have required a custom piston due to the odd length rods & pin size.
Once that process started, things would have escalated to a different rotating assembly, then different block, then a different charger, killing the budget part of this build.
I really only started this build due to the good deal I got on the engine & I must now resist the urge to get too out of control.
Your pulley combo would put you at 24500 at 6800 ish.
Cam sounds like a BTR 3 or very similar