I only got two runs in. The first it ran a 12.70@105 1.6860ft. It felt good on the launch, but the rest of the run it felt like i was towing a trailer. It didnt even feel like the same truck. The second run i tried to run it in 2wd 3/4 of the track. I tried to roll into it but as soon as i would hit the bottle it would just spin. When i took off from the track, i made a run down a road and the truck was running like it always does on the bottle. The only thing different when i ran the truck on the track was that it was cooled down and when i ran it after the track it was warmed up.

 

Maybe your running to cold and detinating

 

detonating.

Not likely.

a couple things to check

IAT (air intake temp) although it seems like your ruck was fine at launch.
do you have a bottle heater? You should if you don't
perhaps bad gas?

 

If your temp was too low the computer will not allow it to go into WOT.Mine is set at 142 degrees, and it goes to WOT with little warm up time. Probably not the problem, but just a thought.

 

I do have a bottle heater and the the bottle was at 1100psi. Before I went to the track i dropped the fuel presure a half pound and went up on the nos jet 2 sizes. I should have just done one thing at a time. Im going to put it back how it was and get it on a dyno to see what its doing. When i go back it will run in the 11's.

 

[QUOTE=work in progress]If your temp was too low the computer will not allow it to go into WOT.Mine is set at 142 degrees, and it goes to WOT with little warm up time. Probably not the problem, but just a thought.[/QUOTE

When i first put it on a dyno, between the first pull and the third pull it made about 15 more rwhp. The only difference was that there was heat it the motor. When i made the runs at the track it was about 160.