2012 Sierra RCSB 5.3 build thread @ New Era Performance
#395
It was still in the 11's actually, 11.9 11.8 @ 118-119 mph. If it hooked I dont know what it would do, but from a 50mph roll, it runs right with my Camaro which runs 10.8's at 126mph. Time will tell, next year sometime hopefully.
#399
I see that you are calculating your supercharger speed with the pulley changes youre making.
Is there a chart or formula you are using? Where?
I am running a 3.25 pulley with an ATI 7% OD Damper and would like to know my blower rpm!
Thanks
Is there a chart or formula you are using? Where?
I am running a 3.25 pulley with an ATI 7% OD Damper and would like to know my blower rpm!
Thanks
#400
It's an easy formula to calculate blower speed.
Crank Pulley Diameter/Blower Pulley Diameter * RPM
So on a 5.3 with a stock crank pulley, with your 3.25" pulley and shifting at 6500rpm, it would look like this.
7.75"/3.25"*6500=15500rpm at the blower.
Crank Pulley Diameter/Blower Pulley Diameter * RPM
So on a 5.3 with a stock crank pulley, with your 3.25" pulley and shifting at 6500rpm, it would look like this.
7.75"/3.25"*6500=15500rpm at the blower.




