DTMR

I know I've hear this before, that cams can lower gas mileage... but mines been like 8 mpg haha and i always go with performance first but I was just wondering if this is normal. But I love my cams between the sound and the huge difference in power

JCON

8mpg seems super lower, run a datalog with your tuner to see why its using so much fuel. Could be running super rich.

timmbo

I get 17 mpg with my cams and mods. You got something dead wrong going on son.

breathegood

My average tank went from ~23mpg to ~19mpg when I did the mods in my sig. That includes a lot of highway driving. I don't drive it a lot, so I try to make it count when I do. Just idling around town, my car will get 12-14mpg.

JCON

The question no one is asking is: what is your average throttle position? Cams have a tendency to move it closer to 100% more frequently

outceltj

that seems low but I have gotten as low as 13 but honestly I could care less

DTMR

yeah i mean i logged it and it was within 1.00-1.10 according to my sct tuner and i was just curious to see if anyone else experienced similar mileage so i know i was not running to rich

07 GT E UPP

Yah, seems real low.....Check your tune !! I only lost a couple at most with Hotrods. But, If you think this is bad, just wait until you go FI....LOL

moosestang

I don't think I could get gas mileage that bad if I tried. Are you calculating the mileage or going by the computer?

I would wager that you have a problem, unless you regularly do 5mph.

DTMR

thats what my gauge says average mpg is like 8.2 lol i wanna hook up the souls scanner and data log it if my boss lets me but if i was inning that rich wouldnt my check engine kick on?