Originally Posted by SCDEALER
Does anyone know if there is a exact point (boost PSI) at which the computer (02 f350) will defuel a chipped up engine?
ie When do you need to add a boost fooler to keep the computer from overriding the chip?
Contact your tuner and ask them what it's set at. I think
all of the tuners remove defueling altogether, but they could simply raise the point at which it occurs. 24psi is the factory defuel point, and if you're running a stock turbo, it coincides with the waste gate dumping point as well.
Valid safety positions if you don't want to grenade the factory turbo. If you were to upgrade the wheel or the full housing, then the safety points change and everything factory becomes null. There are ways to get more boost out of a stock unit, but anything above 30psi starts to get dangerous (longevity wise). If you want more boost, change the wheel or housing. Aftermarket will spool up faster and boost higher. Pushing stock to the limit is nothing more than polishing a turd.