I just bought a 2010 gmc singlecab 2 weeks ago took me 2 months to find it how i wanted, i took it to the track 2 weeks ago and tuned it over there it ran a 15.0 at 93 miles then a 14.9 at 94 miles didn't have to much time to try it out again. Made some changes during this week and this pass friday i took it again and ran a 14.8 at 94 miles and again didn't have time to make another pass since i was testing another truck.

2010 GMC 5.3 6speed, 3.42, and tuned..

Heres some quick pics with my phone

 

Whoaa sorry for the big pictures lol..

 

Looks great. I always liked the single cab trucks, had to compromise with the wife...

 

Mind sharing your fuel/timing? I haven't taken mine to the track or dyno so I've been tuning my truck based off of my prior knowledge and logs.

 

wouldnt the tuning be somewhat different on 4 speed to 6 speed tranny?

 

Forgot about that, is on 93 octane at 26 of timing i havent got time to bump it at 28.

 

On the tranny section is some what different, on the shift points they are the same just that the 6speed has 2 more tables for gears 5 & 6, Same thing in the shift speed. By looking at the tables you get the hint in other words its not difficult