I don't know if I'm posting in the right area...but, Take two identical GT's, same gearing, break-in, and same everything, and you put let's say a whipple in one of them. Take them to an interstate with a full tank, and run them both steady @ about 70-75 mph for about 30 miles, do they use the same amount of gas? Someone told me that w/ those conditions, the supercharger actually is more efficient. Is that true? Thanks.
Not sure, but the people I have talked two with S/C were getting 23-25 MPG on the hwy that is about what a N/A 05-08 Mustang GT would get.
I would think it's true with a centrifugal blower. I was getting 18.9 mpg with the procharger on my '05 with 4.10 gears. now I have a Whipple and the 3.55 gears are back in. I'm getting less than 15 mpg.
Depends on the tune. My 05 with HO Vortech is as economical as stock but higher octane gas gives you more mpg anyway as it contains more energy in effect.
In the city I get 13.3-13.7mpg. When I am on the highway I get 23-27mpg (better than when i was NA getting 22.5mpg)
I've lost 1/10th mpg with whipple in cruising at 85 mph, mainly because of bigger injectors ; air/fuel is a bit rich on S/C to be safe . Just my 02
Fuel efficiency has increased for me. I have a Vortech S-Trim centrifugal style supercharger. I get better gas mileage especially in places where I can put the cruise control on. I barely press the accelerator when driving around town and only romp on it either when I want or need too. My 06 vert is a dailydriver at 39,000 miles.
with a centrifugal super charger, your not hitting boost untill maybe 2200 rpm. I personally have a procharger tuned by Jim Sr. himself from JDM engineering and get 25+ doing about 60 on the highway. Cant speak for twin screw or roots but im sure its less cause your constantly throwing boost in your motor
I thought there was a boost by pass on pos disp blowers, so you aren't in boost all the time unless intake vacuum calls for it?
