[turbo8765]

All else being equal, does anyone have a sense of how much power would be lost by retarding ignition timing by 10 degrees?

Just for the sake of discussion suppose a stock 1g at WOT with adequate fuel delivery, how much power might be loss from retarding from say 20 to 10?

Also, does anyone know what parameters the stock ECU will retard timing based on? Obviously knock, but what about intake temp or injector duty cycle? Anything else?

 

[diambo4life]

I don't think anyone can tell you how much power you'll lose. Also, you can gain power if you decide to run less timing but run more boost at the lower timing. It's always a compromise that's why it's difficult to ascertain how much you'll gain or lose.

ECU will retard timing specifically, from what I know when the coolant tempt. goes above 206deg (-1deg.) and more (-2deg) when it gets over 224deg.

It also retards timing (by one deg) with AIT above 84deg and intake tempt. below 34deg.