Terrible MPG on Whipple setup

[gqneon]

I get "around town" of about 11mpg - on E85 with ID1050x on the port side of my Whipple. I can get 16-18mpg, or 20+ on highway. I don't log a ton of miles, but your number is either right for your driving habits or wrong for some other reason I suspect.

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[Stang 19]

Probably very little change when NA.
It’s likely that wet mode slows the throttle so much that boost rarely occurs, making it drive a lot more like an NA car.

Agreed. But in my stock Eddy tune, in Wet mode, once I get to 87% throttle, she goes WOT and feels damn good, like the other modes . Just a lot less twitchy in wet mode. Good lord that stock Eddy tune

 

[givemeadollar]

stage 2 whipple on a 2019 mustang gt with 93 octane gas averaging 16mpg over the 10k it has been supercharged mostly highway and mostly beating the crap out of it.

 

[Andy13186]

I get 10.6 MPG according to the dash reading, probably less in actuality and I am not even boosted, just e85 and hard driving lol.

 

[Jackson1320]

P1sc stage 2 w/ 95lb injectors and I'm getting a happy 9-10mpg in the city. More so worried about my creeping higher ECTs and CHTs in the single digit cold.

P1x 3.6 upper 20% lower gated at 15psi most the time. 20-22mpg average. What are your temps? My cht normal driving is 185. Ect 170-175

 

[Andrew@Lethal]

Is anyone else getting terrible MPG on their whipple setup? I supercharged my car knowing that the MPG would definetly be worse but I didn't think it would be this severe. Im getting 10-11 MPG with very normal driving. I floor it MAYBE three times on a full tank and the rest is normal driving. My car is also an automatic with the 3.15 gears, not even the 3.55 which ive hear get even worse MPG. Im on the whipple tune that came with the stage 2 kit. Is this normal for an automatic car with 80% normal driving and 20% of ""spirited" driving with paddle shifters and minor pulls?

P.S. My car while it was bone stock was getting around 18.5 MPG.

Typical MPG when boosted is going to go down to 10-15 average. This also results and varies from going with larger injectors and fuel pumps to accompany the boost.

 

[smokescreens]

my MPG's were unaffected at cruise speeds with my stage 2 on my 18gt. i get 26mpg's at 75mph with 3.73 gears in my manual. im thinking about doing 3.55 gears now that i have a lot more tq.

now when im beating on it i swear i get 3 gallons to the mile but if i set the cruise control it acts the same as stock.

im still on 93oct gas but would love to go e85. i would assume on e85 my mpg's would go down the crapper.

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