Drew778

iTrader: (2)

Forged 347, harden pushrods, AFR heads with springs good for .650 lift.

I'm using LS-1 edit, right now its 6900, I was thinging of raising it to 7300-7500?



Thanks
Andrew

ArKay99

iTrader: (1)

I'd be concerned about float above 7G's with those springs. My motor has it's rev limiter set to 6800rpm and I flywheeled past it when I missed a shift up top between 3rd and 4th, actually the clutch stayed on the floor... I floated and kissed some pistons. I have those springs. My guess is I was up around 7200rpm's before the limiter got it back down. Maybe if you use lightweight valves and shim the springs...

Drew778

iTrader: (2)

Thanks

Drew778

iTrader: (2)

Anyone else with a similar setup?

I set the shift points at 6700 rpm and rev-limiter at 7301 rpm

1-2 48 mph
2-3 88 mph
3-4 136 mph


Does this seem about right?

horist

What rear gear? if stock 3.23s that should be fine ... another method of setting shift points is to set the MPH to shift at way low, then set the RPM to shift at at the RPM you want to shift at (in order for the PCM to command a shift it must meet both requirements, if you set the WOT 2-3 shift at 60mph but the 2-3 RPM at 6700, it must be going faster than 60mph and at 6700 RPM to shift ... makes it a lil easier)

Also as mentioned... I wouldn't shift that high on those springs... not even sure if I'd shift that high on a hydraulic cam ...