jensenracing77 post=476 wrote: We ran a full tank of gas through this car with the GPS hooked up. it got 16.7 MPG and was about 50% city driving. it also had some idle time while tuning on it and even a dozen or so times that i stepped on it. i think it will be close to 20 MPG on a tank of strictly highway driving. We are taking it to a car show tomorrow, the last one got rained out.
My Jetfire NEVER got better than 16 mpg, even with the waste gate held open. The 4 barrel managed 18 to 23, depending on type of driving.
But the thing it did best was idle. No one in the car could tell if it was running, I knew by the gauges. Guess that compressor did some extra mixing.