Power and gas mileage.. Should I change tuners?

[machalex]

I have an 01 excursion lifted. I like the truck but not to happy with the power. I have an intake, mbrp exhaust, and a superchip. It just seems slow. I currently get about 12mpg in town with 6" lift and 35s. Would I feel to much of a difference switching to something like a ts chip. Any suggestions?

[blue99stroker]

you might notice slightly better mpg.
much better on your tranny and cooler egts...
not to mention more POWER
dont get a standard ts chip. get one with custom tunes.

[machalex]

Ya I was looking at the tony wildman but I thought it would be harder on the tranny because of the more power

[blue99stroker]

well he is better at tuning the tranny as well.
so still better than the chip you have now.
you could could get a new valve body for the tranny that helps a lot.

[scottal]

i have a standard ts 6 position on mine with 35s an 4 inchs of lift. i run it in 140 horse settin all the time an am gettin 18 round town n bout 21 on interstate. mine also has 3.73 gear. if you have 4.10 you can expect lil lower mpg

[Joel]

Another thing worth mentioning, are you taking the bigger tires into consideration while doing calculation for you mileage?

On my truck the speedo/odometer is exactly 8% off with 35s

[LTSmith]

My speedo is off by 9%. I get anywhere from 12-13 in town. and 15-17 on the highway. I have a 6" lift 35s and a TW custom tuned chip. I try to drive sensible but that can be hard lol. The mileage I see I feel is pretty reasonable for an 8k lb truck lifted up with big tires. You can see what I have done to my truck in my sig. The mileage is starting to get to me, and that's why I'm gonna be buying a diesel jetta for a commuter car. But I will NEVER sell my baby!!

[SeeYa]

Originally Posted by LTSmith

My speedo is off by 9%. I get anywhere from 12-13 in town. and 15-17 on the highway. I have a 6" lift 35s and a TW custom tuned chip. I try to drive sensible but that can be hard lol. The mileage I see I feel is pretty reasonable for an 8k lb truck lifted up with big tires. You can see what I have done to my truck in my sig. The mileage is starting to get to me, and that's why I'm gonna be buying a diesel jetta for a commuter car. But I will NEVER sell my baby!!

Bingo! Recalibrate the speedometer to the Revs per mile rating of your tires. Run 3 full tanks through and then recalculate your fuel consumption average.

[LTSmith]

The mileage I'm reporting is taking the 9% difference into account. If I was just going off the mileage my odometer read boy would I be hating life lol. My 12-13 in town is with the correct amount of miles driven. I even used my brothers GPS to double check over a series of fill ups.

[dentexpowerstroke]

What mpg are you expecting out of an 8000lbs truck? If you are expecting good mpg get a v6 half ton, you drive a truck that will pull whatever you want why would you expect good mpg?