Diablosport Forums

I have a 2004 Silverado Z71 4wd. Predator #U7193. Did a WOT log today using the predator and laptop running the dataviewer software. Got done and it gave me adjustments of -2% in the low range rpm and -3% in the high range rpm. I did the adjustments and am sad to say that i have not noticed any difference at all. There is at least 1 second worth of lag when i punch the throttle to the floor. but if i go 3/4 throttle its right there but still not able to turn the tires or even chirp them. Im almost conviced that my programmer is not disabling torqe managment because there is so much lag. i also tried to do a brake stand and even that was difficult. I wanna say that its still pulling timing and that torqe managament is still happening. any help? please.

does anyone have any ideas on this?

squall8158 wrote:I have a 2004 Silverado Z71 4wd. Predator #U7193. Did a WOT log today using the predator and laptop running the dataviewer software. Got done and it gave me adjustments of -2% in the low range rpm and -3% in the high range rpm. I did the adjustments and am sad to say that i have not noticed any difference at all. There is at least 1 second worth of lag when i punch the throttle to the floor. but if i go 3/4 throttle its right there but still not able to turn the tires or even chirp them. Im almost conviced that my programmer is not disabling torqe managment because there is so much lag. i also tried to do a brake stand and even that was difficult. I wanna say that its still pulling timing and that torqe managament is still happening. any help? please.

You needto post up your WOT log. If there is timing being pulled, it will be clearly shown on the log provided you have selected KR parameter.

custom tune...

My 05 Z falls on its face from a punch, too. It's pathetic!!! Mine is STRONG once in second gear, but from a stop its as poor as you can get. I just raced a wore out F-150 and it jumped me half a length until mine switched to second and I then immediately pulled him a length and continued to leave him. Are you havin the same issues??? I have a post on hear " NEWBY NEEDIN GOOD LEARNIN", where they sent me to a right up on what all I need to do to fix this issue. I just don't have the time to drive around for 150 mls., log it, send it in, and hope they can finger out whats goin on.

ya i am definitly considering a custom tune. i need more power out of this truck mainly cause i cant afford to mod the engine or buy a desiel lol.