Hypothetical Question on Turbo Back Pressure
Engine A, at sea level, makes 100 horsepower with 14.7 PSIG intake manifold boost (above atomspheric). At this conditon it has 20 PSIG exhaust before the turbo, and 5 PSI exhaust pressure after the turbo, then:
1. If the after turbo exhaust pressure was lowered 1 PSIG, how much will the exhaust pressure before the turbo decrease?
2. How much will the engines power increase?