How much psi can a stock turbo handle?
How much psi can a stock turbo handle? 35 psi is the efficient range, it can tolerate 38 psi, but 40+ can be lethal, a quick burst to 40 you will be fine, but if you have an egt gauge sync it with your boost and you will see. How much psi can a stock 7.3 Turbo take? SmokeyWren said: Max of around 17 PSI with stock intake, exhaust and tune. Improve the intake and exhaust and you can get about 21 max. Add a go-fast tune and you can bust the 25 PSI redline of the stock turbo. What...