Quote:
Originally Posted by 88Racing
When you lifted the truck and put the big rubbers on is that when you noticed the decrease in mpg's?
Big tires=-mpgs
Regearing can get some of the mpgs back, but not all of them.
What the gearing on the truck now?
And definately a custom tune will help.
Lars  |
Lars,
I have 4.56 gears in the truck now and I recovered a little mileage but it seems as though I am losing more miles to the tank since I replaced the fuel pump.
I have the Hypertech PP III that has taken the tire size and gears into account to adjust the speedo. I have noticed the difference with and without the programmer but from what I'm hearing, the Hypertech can't even touch the coat tails of the Gryphon.
Should I use the canned tunes or what other tunes should I get?