Whipple Supercharger destroyed gas mileage
#1
V6 Member
Thread Starter
Whipple Supercharger destroyed gas mileage
Seriously, driving VERY conservatively in D not S mode around town - gas mileage went from 15.6 pre Whipple to 11.2 post Whipple. Totally babying the car. I'm only getting 180 miles out of a tank - 2016 GTCS
Could the tune be wrong or MAS be wrong?
Could the tune be wrong or MAS be wrong?
#2
Legacy TMS Member
My roush blower running their 670hp tune averages 17 and that includes typical city driving, normal highway driving, and a lot of backroad gettin' on it driving.
#5
Bullitt Member
When I KB'd my '03 2v, I lost almost exactly 1 mile to the gallon. If you are truly staying out of it, your drop surprises me.
The only thing I can think of is with blown engines, the AFR's will be around 12-13 or lower, and stock, the AFR's are around 14+...a lean FI engine will not last, so they richen it up for safety.
The only thing I can think of is with blown engines, the AFR's will be around 12-13 or lower, and stock, the AFR's are around 14+...a lean FI engine will not last, so they richen it up for safety.
#10
Roush Forum Stalker
What tune did you get for the car? Is it Whipple's tune, or a custom tune?
#12
Roush Forum Stalker
#16
Roush Forum Stalker
#17
Legacy TMS Member
I have a buddy with the 2.9 on his 2015, Performance Package, and Whipple's tune. He's averaging about 11mpg also. It seems it's their tune. Did you pay extra for the Whipple warranty? If not, I'd have it dyno tuned by someone else.
#19
V6 Member
Thread Starter
Whipple said that the supercharger is always running and therefore sucks more gas in stop/go traffic. So 11.5 is what to expect... Drove 530 miles round trip to Vegas this weekend. I got 20.1 mpg going 80-85 with a couple full throttle passing of slower cars
Therefore, I just ordered whipple's Crusher 132mm throttle body. Will be installed with new tune next weekend.. Then new dyno run and pics 👍🏻
Therefore, I just ordered whipple's Crusher 132mm throttle body. Will be installed with new tune next weekend.. Then new dyno run and pics 👍🏻
#20
Roush Forum Stalker
Whipple said that the supercharger is always running and therefore sucks more gas in stop/go traffic. So 11.5 is what to expect... Drove 530 miles round trip to Vegas this weekend. I got 20.1 mpg going 80-85 with a couple full throttle passing of slower cars
Therefore, I just ordered whipple's Crusher 132mm throttle body. Will be installed with new tune next weekend.. Then new dyno run and pics 👍🏻
Therefore, I just ordered whipple's Crusher 132mm throttle body. Will be installed with new tune next weekend.. Then new dyno run and pics 👍🏻
Stay with Whipple's tune. I hear that is the best for the system, with Lund being a close second. Good luck and keep us posted Allen!