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I'm trying to tune my procharged (6 psi, no other mods) LS3 corvette, and I'm seeing points in the log where the calculated cylinder airmass is going way above the 1.36 g/cyl limit on the Main Spark...

I've got a similar problem. 72* ambient temp today, drove long enough to get ECT up to 215, then stopped the engine for about 5-10 minutes. Got back in, started it up. Fuel trims (LT and ST)...

I'm just outside of D.C.

Tex: There's no way I was going to use their canned tune. I've heard too many bad things about it... that's why I'm wondering just in general what they change to give...

Thanks, I realized that there is a difference in the 2009 C6 that is addressed in the 2.23 beta. When I look at the flow rates in the beta, they show up as real lb/hr numbers instead of those...

Does anyone know why the IFR vs. Pressure Delta numbers are so different on the 2009 C6 vs. the 2008 C6 and 2009 Z06?

2008 C6 shows 41.74 from 128 - 400 delta kPa. Same with the 2009 Z06.

But...

The kit came with FAST 50# injectors.

Edit: I believe they are rated at 58psi. The stock ones are 42# @ 58psi, if I remember correctly. Can I just scale the stock injector numbers up across the...

I just dropped a procharger into my (otherwise stock) 09 vette, but I don't feel like pulling the PCM to send to Fastchip. Does anyone out there have a tune I can use, or can point me in the right...