MPG with a supercharger

Originally Posted by synolimit

Unless I'm missing something a closed loop map setting should get the same mpg as anyone's closed loop map setting. I get 27mpg straight highway. I should get the same with whatever bolted on as long as I stay in closed loop. My subis were 27mpg also pushing over 330hp to the wheels. Open loop is another story. The fact that your asking about a supercharger is irrelevant, the question should be "with my SC what will my right foot and pedal get me for mpg loss?" If your car weighs the same as a NA car, driving down the highway your mpg's should be identical.

Originally Posted by Chuck33079

I would think the additional parasitic drag from the blower would eat up some gas, even in closed loop.

Originally Posted by DEpointfive0

Yeahhhhhh
And to maintain speed you need to press the gas pedal taking it off the closed loop and since you're S/C vs Turbo'd you'd have to burn even more fuel to turn the SC (right?)


Oh, and synolimit, your Subarus are turbo'd, very different beasts

Originally Posted by warpeacelove

(NA)
G37 models with the manual gearbox are actually the least fuel-efficient, at 17/25; models with the automatic get up to 19 mpg city, 27 highway.

So how much MPG LOST should be expected with a SC setup compared to NA?

Originally Posted by Chuck33079

I would think the additional parasitic drag from the blower would eat up some gas, even in closed loop.