Join Date: Nov 2006
Location: Moses Lake, WA
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First question why would you want to turn the turbo off? (No possible way unless you take it off the engine or get fancy and make a dump for the exhaust before the turbo) The turbo is spinning anytime the engine is running. The turbo supplies air to the engine, not enough air would mean less power and lower mpg's. Since there would not be enough air to burn the fuel, meaning burning more fuel and creating high temperatures. You want the turbo to be building boost. If you want to see whats it like just go take off the intercooler tube and try driving it. You won't make it over 45 mph and it will take you a mile to get there. Cruising at 75 mph you should be around 6-7 psi of boost. under hard accel w/o chip you should max out around 17 psi. cruising in town should be around 1-2 psi. The exhaust from the engine goes through the turbo (impeller) in turn spinning the compressor wheel (they are connected by a shaft) which forces air into the engine. THE PSD IS A TURBO DIESEL. Built to run with a turbo. If anything you want your turbo to come in faster and build more boost.
99.5 F-250 PSD AT 4x4, 4in lift, 37 13.5 18 Pro comp Extreme A/T's, S&B Intake, GTP38R, DP Tuner custom programs (140 Agg., 120 sled pull, 80 tow and 60 tow), Rosewood DIY stage 2 injectors, BTS Trans, 5in exhaust no muffler, 6 oh intercooler, Ford AIC, EBPV delete, Foil delete, T/C lock up mod, Pusher Fuel Pump, Three Chime train Horns
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