Bigger tires?

[jmwilso2]

Hi Guys, thanks for all the input. I think what all this boils down to is that increased air drag is a factor but not significant. The torque issue can be solved by determining what additional power my mods are giving me at the rear wheels and only increasing my tire size enough accomodate the additional power I have over a stock setup. So other than getting on a dyno is there a way to estimate power gained from mods? Sure they all publish x additional hp but I doubt the published values are accurate. I've finally figured out how to list my vehicle and mods at the bottom of each post automatically so they should show up now. Hopefully I'll get some photos up soon but the truck is covered in road slop. Its so hard to keep it clean in the winter. If anyone has an idea what the mods might be gaining me I'd be glad to know. I am getting an extra 3 mpg according to the avg economy on the gryphon but that all I know. Which actually brings me to another question. Longshot mentioned getting a vacuum guage, do those read differently than the electronic fuel economy computer in the gryphon.

Thanks again

Joe