Performance Tune MPG

[Galaxie]

Are you guys experiencing better MPGs with your performance tunes?

[Goose350]

Yes. What tune are you running?

[Galaxie]

A street tune. Tune by John Lund on my SCT Xcal3.

Truck runs SUPER STRONG. Blows a bit of soot...not a fan of that but I guess that is part of building more power.

[Goose350]

Originally Posted by Galaxie

A street tune. Tune by John Lund on my SCT Xcal3.

Truck runs SUPER STRONG. Blows a bit of soot...not a fan of that but I guess that is part of building more power.

How much soot and when? With proper tuning there should be a nice sized cloud right when you start off and then from there on it should be nothing more than a light haze.

[Galaxie]

Originally Posted by Goose350

How much soot and when? With proper tuning there should be a nice sized cloud right when you start off and then from there on it should be nothing more than a light haze.

You got it! A cloud when I hit it and then very mild. If I put it in netral and hit the fuel, its DARK! lol

[Rubenk]

Yes I get my best MPG on my high-hp tune, it blows a puff at WOT then clears up.

23mpg is the best i've seen when I had my 33s, but now I can sometimes manage 18 to work on 35's...

[Galaxie]

Cool. Well, EGR delete next before my Warrenty is up. lol

[JER-1]

Originally Posted by Rubenk

Yes I get my best MPG on my high-hp tune, it blows a puff at WOT then clears up.

23mpg is the best i've seen when I had my 33s, but now I can sometimes manage 18 to work on 35's...

What rear end gears you have in that truck best I can get is 11.5 mpg.and what mods???
I have the old 4.10 gears in my 2005 f-350 dully
JER-1

[Rubenk]

Originally Posted by JER-1

What rear end gears you have in that truck best I can get is 11.5 mpg.and what mods???
I have the old 4.10 gears in my 2005 f-350 dully
JER-1

Im almost certain I have 3.73's cause this thing flies!!

I have a straight exhaust, full EGR delete from BTS, and get that mpg on Cales 140 tune. When my truck is running right I dont think I could get it down to 11.5 if I tried!!

Seems like just the EGR delete helps alot b/c you are always burning clean air instead of exhaust. I can definitely tell my 35's killed my mileage at highway speeds though. If I had stock tires and a properly running truck I dont doubt I could hit 25mpg with careful driving on the highway!

[dukcaln]

MPG.....whats that.....with 40's I can't get good mpg.....LOL