differentia gears

[Mac]

Not familiar with turbos at all but my thinking is the same as Littlehorse, more air in, more fuel required to maintain the correct A/F ratio. Stay out of boost might be the answer but then why make the change. I'd sure stay with the 4.10 gears in this case, anything higher would really drop the motor out of it's effective running range with them tires.
Dave

 

[sr975j]

well i know for sure that my friends 04 turbo mustang gt picked up about 4 mpgs once he added the turbo as long as he didnt drive like an idiot. Also, ive personally seen a marauder with a procharger pick up 5 mpgs....thats my $.02

Sam

 

[merace19]

Turbo yes. supercharger NO.... Turbo is free, supercharger is parasitic so not free.

 

[1996DANGERRANGER]

yea turbos run off the exhaust so it doesnt take power to run it. a supercharger is belt driven so it takes power to spin it but it doesnt cancel itself out