well i got my new tune for the headers with VVT turned up some and got 17mpg on a 10mile round trip. saw 22 for a little bit but then got into the hills. wounder what ill get and the thruway.

 

With stock engine 19 20 hwy.

 

I'd like to hear from more of the TVS guys, they seem to be getting some pretty good gas mileage. I wonder if it really is that much more efficient than the MP112.

 

I get 38mpg city 46mpg on the highway











In my wifes car. Haha

 

I think mine took a little hit with the tu1 cam over the ls6 cam. I'd say it's likey around 9ish city and 12 highway on 100% E85. Seems like with the old ls6 cam I was getting mid 13's highway.

4.8L w/ 225/225 .581/581 113+1, 4l80E, 3.73 gear, 20" wheels.

 

Just ran my first full tank of city driving post SC install and I averaged 11.6 MPG.

 

making a road trip this weekend. will post up results.

 

mine gets 12.7mpg on the highway and maybe 9-10 in the city if im lucky..

 

I get around 20 mpg on the hwy @ 70, 14 mpg in town. 10-12 mpg during regens and towing.

 

5.3
212/218 cam
3.42 gear
265/60-18
tt3000 yank
5000lbs

17.8 mpg on the highway