What injector duty cycle do you see with 680cc on your stage 3 kit? Will 680's support a 63lb/min turbo at 23psi on pump and 28psi on 100 oct? Do you recommend positive numbers in the fueling table? Is adding +-4 equveilent to 1 AFR point?

Thanks in advance.

 

Yes, those boost/octane combos shouldn't be a problem. In fact, we've run the GT30R at over 30psi with 680cc injectors without going static (below 95% duty). No reason why you can't put positive numbers in the fueling that either. Although I rarely see the need to do that if you are running the standard 680cc XEDEFlash (which tends to err on the rich side). Hard to say what a +-4 point change is equivalent to though...

Shiv

 

I figured going from a 52lb turbo to a 61lb turbo might cause me to run out of injector since I would have to start using positive numbers.