Last night this problem caused me to lose TWICE...

I ran from 0-120, or attempted to get to 120 i should say... I nailed it off the line, it was pulling good until i get to 90 and all of sudden my car just stops pulling.. I dont even think it was pulling as fast as it culd on motor...... We turned around and went from a 40mph roll and SAME THING... Dude blew by me at 90 becaus my car just felt real loose and stopped pulling..

ON my way home played around with it.... I got on it an 80mph roll and it didnt happen... I did it two me times and it worked.... I though the problem fixed itself....... I nailed it right at 85-90-95 and it pulled lke a beast.
Then i went from a 55mph roll and as soon as i got to 90ish, it stopped pulling and just went to sleep...

I changed the location of my jets from the outer side of the intake, closer to the MAF where it turns into a tube to cnnect with the MAF and i sort of have a small leak i 'think'... But im pretty sure thats not what causes it... Could my transmission be the problem? Im also thinkng mabey the silinoids may get overwhelmed or something when i go from lower speeds becaus they ar sprayig so much.... My last test run, i nailed it from 50, at 90 it went to sleep, so i flipped the activation switch off and back on and it woke back up and started pulling...

 

Do you have a fuel pressure safety switch installed? It could be doing exactly what it's supposed to do - cutting the nitrous off if your fuel pressure drops. If that happens, you'll be seriously rich, and the engine bogs. I've had that happen, and it feels like you just drove into a huge pillow...

Dave

 

nope....

 

What was your bottle pressure,was the bottle cold or do you have a bottle warmer?

 

It was somewhere around 800-900PSI... It as a little warm i believe becaus i heated it about an hour prior with a torch an have a blanket... The used it the night before, and the MAX PSI i could get out of it was 1000 the night i had this problem... However, i think my gauge is broke, becaus when nothing is in the lines, my PSI gauge still reads and dosent drop to 0... the ony time it drops to 0 is when i drain the bottle..

 

I have heard of a problem with SOME LS1 cars on the bottle. Something in the Computer called torque management,supposed cuts timing ( i think,been a while since i heard this) so it wont hurt the car.Mostly on the Auto cars,may be something worth looking into.