Well made it to the track for the last test and tune of the year. Didn't run my best times but I was able to compare my setup on my truck versus a 2016 Silverado Double cab Z71 5.3 with a Volant CAI, Magnaflow cat-back and a Klug performance e85 tune. We both launched our trucks in 4wd, stalled to 2000 rpm, and switched to 2wd after the launch. Was very cool to compare the two trucks at the track.

 

 

My quickest pass of the day versus an AMX.

 

That's weird that you guys shift to 2wd after the launch. I can't do that. If I do I light the tires off on the 1-2 shift. 285 wide too.

I shift right after 2nd grabs. Maybe my transmission tune is just too nasty.

 

My slip for reference. 2017 5.3 4x4 on 285/50R20 stock tune engine, juicy tune transmission

 

Not bad at all. I use to have a more aggressive 1-2 shift and it would spin a little and then we toned it down. Now I have nice quick shifts without traction loss.

 

Mine will do a chirp on the 1-2 on the street, but that's it. Shifting to 2wd after the shift seems to solve any issues.