Torque limiting?

[Rich Z]

It seems to me that setting the LS1 max torque to 640 ftlm tells the PCM that there is no limit... I've seen various tunes easily making 700+ ftlb.

Yeah, I know. If it actually were a limit, I would think people would be screaming about this. But anyone know for sure about how this works?

Sure would have been a dirty trick if GM put in that limit into the PCMs, now wouldn't it?

[ScarabEpic22]

It seems to me that setting the LS1 max torque to 640 ftlm tells the PCM that there is no limit... I've seen various tunes easily making 700+ ftlb.

This is what I've seen as well, but I havent done many LS1 PCMs. I know guys making well over that, both at the wheels and flywheel with no issues.

But, Rich it's a great question. If you dont ask, it might bite you later on!

[GMPX]

Rich, I think it's just a mathematical limit (I haven't actually checked), so even if the engine is actually making more torque than that it'll still think 640ft-lb is where it's at.