Obviously this changes with different setups, but I was just curious what other folks are getting. I personally have a vortech on an EMS and I only get about 210 miles per tank. U hitting 7 paid I believe, at wot anyway. About 325 HP last I saw.

 

There seems to be a few threads on the same subject.

I get about 24mpg last time I checked. Mix city highway and a good amount in boost.

I am at 400whp

 

8mpg when tracking /autoXing

~25 city
~32 to 34 mpg interstate at average 75mph

FYi ( 4.4 gear, roots supercharger)

 

Sounds like a need a tune and maintenance. I thought it was pretty low.

 

Im just curious why this is an issue among the forced induction crowd? I never had great gas mileage in my s2k, but i lived in higher elevation then most (2800+ft). I never really minded though because i knew what the sacrifice was. Power whenever i wanted it, and a screaming redline ..But when you get to the point of wanting over 350hp, which seems to be the going rate with these motors, gas mileage should not even be an object of the car to think about.

I understand the need to monitor it, because when your gas mileage starts to go, different things might need tending to i;e spark plugs, etc. But i only ask because i have a friends with 13bt's among other things boosted cars, and they always say "how can i get a few more miles out of the tank"? I personally say forget about it, when you've invested well over $3-4000 on a FI kit (i;e bigger injectors lol) gas mileage is history, because we all know not going WOT 85% of the time, isnt an option.

 

Turbo, 350+ whp: I got 27 mpg over the last tank since I wasn't seeing any boost, normally 21.54 mpg.

When I was N/A, I would get 19-20 mpg, the highest I got was 24 mpg.

 

I get 200 to a tank and 180 if I romp a lot on it...
I do sit in bumper to bumper traffic for work every day though..

 

I agree that good MPG is not our goal. I just wanted to see where I compared against others as I diagnostic tool for a larger illness. I fully expect high boost and HP to be thirsty. LOL.

 

Almost 300 here 280 average normal driving

 

injectors help too.. with RC's I had to have a SUPER rich idle in order to not misfire.
With the IDs my idle sits at 14.5 to 15.