I have a pettit ecu -the limited one- i would like to know what is the max duty cycle for it and the max for ther unlimited one.

thanks,
RT.

some mods:

*Pettit street ported engine.
*dp, mp, apexi muffler.
*Pettit high flow turbos -single configuration-.
*Boost: 10 lbs. -controlled by greddy profec b-.
*J&$ knock sensor.

 

I'm not sure what you are after. The Pettit ECU's can run the stock injectors at 100%. However, that's doesn't mean it's a good idea. As long as all your fuel components are in working order and your A/F ratio is in tolerance, then it's not a problem.

However, if your injectors are not flowing as much as they should, then the duty cycle won't necessarily reflect the amount of fuel being used.