I pulled a friend Trans Am to the track last night and when we got there it was $10 to watch or race. So I said what the hell, Let see what this Crew Cab can do. Below are the Times with the 87 Octane Generic Predator Tune, Hooker AeroChamber and Volant CAI.

1st Pass after driving an hour to the track and pulling a Trans AM:
60' 2.291
330' 6.501
1/8th 9.917 @ 72.41
1000' 12.820
1/4 15.309 @ 90.13mph

2nd Pass:
60' 2.285
330' 6.476
1/8th 9.879 @ 72.66
1000' 12.775
1/4 15.264 @ 90.13mph

3rd Pass:
60' 2.285
330' 6.472
1/8th 9.873 @ 72.78
1000' 12.763
1/4 15.227 @ 90.97mph

On the 1st and 2nd pass my truck "shut off" kinda of like when it hits the mph limiter between the1 - 2 shift and 2 - 3 shift the on the 3rd pass it only did it on the 1 - 2 shift and shifted perfectly on the 2 - 3 shift. I'm positive that I set my rev limiter and shift points correctly but will go back and double check my self. Is there anything else that could cause this?

 

That's a high MPH for a crewcab.

Congrats though

 

Is that the 295 or the 310hp 5.3?

 

295

 

Yes 295. From what I been told only the Z71 comes with 310hp 5.3L

 

Correct.

 

Figured out my shift problem. The 1 - 2 shift was set for 39mph and 5900rpm. 39mph in 1st gear is roughly 6075rpm. So if the shift mph is decrease to 38 mph it would match the 5900rpm. I made the shift point change and it shifts great now.