LT1=weaksauce, my dyno results Options

[awd4kicks]

Tuned on 92 octane she made:
362.7whp@5849rpms and 385.8ftlbs @ 3793rpms. (peak)

Spy, I was checking out my new Jeg's Catalog and found that your numbers are pretty good when compared to GM's ZZ383 crate engine! Here's the specs:

9.6:1 Compression ratio w/ Hypereutectic flat top pistons
'Fast Burn' 62cc Aluminum Heads
Hydraulic roller cam (Lift: .509" / .528" and Duration @ .050: 222/230 degrees)

425Crank HP @ 5400RPM (352.8HP at the tire assuming 17% drive train loss)
460ft/lbs at the crank @ 4500RPM (381.8 at the tire assuming 17% drive train loss)

Using 17% vs. 10% makes a whole lot of difference and I could be wrong using 17. I always heard 17% was the average figure to use for two wheel drive vehicles.

If this is true, then your engine set-up is doing better than GM's claims for their own 383. Plus I'm sure that you can pick up more top end with a different cam.