New tune that is amazing

[black07.5tahoe]

I need to find out about some tuning for my tahoe, looking for some better gas mileage and maybe a little better punch

 

[pnap88p]

after switching tunes, i went from 14.2 mpg to 16.7 mpg after chuck from cow retuned it for me.

 

[Zed 71]

That's a big improvement... Keep in mind detonation (ping) may have been addressed by enriching the A/F ratio (adding more fuel) and there was butt dyno perceived increase in performance. An increase of 2.5 mpgs is a lot. Is the COW a dyno tune?

Is this based on the DIC or hand calculated? I would check that using a GPS to measure distance just to make sure. Keep in mind I am a curious engineer and I like to confirm things like this .

 

[pnap88p]

That's a big improvement... Keep in mind detonation (ping) may have been addressed by enriching the A/F ratio (adding more fuel) and there was butt dyno perceived increase in performance. An increase of 2.5 mpgs is a lot. Is the COW a dyno tune?

Is this based on the DIC or hand calculated? I would check that using a GPS to measure distance just to make sure. Keep in mind I am a curious engineer and I like to confirm things like this .

i was using the dic screen, it was not done on a dyno either. it was street done over about an hour or 2 period of time.

 

[Zed 71]

DIC is not a good way to track this. Try a GPS based mileage are report back.