Nitrous cutting out

[84gt347]

the solinoid makes sense, do you have a filter on the nitrous? Maby its clogged. how much bottle pressure are you spraying with?

Originally Posted by 84gt347

the solinoid makes sense, do you have a filter on the nitrous? Maby its clogged. how much bottle pressure are you spraying with?

Yeah, I can't believe I didn't remember to check the nitrous filter while I was at the track. I'm going to check that out tonight for sure. Even if there is something in there...I think rebuilding the nitrous solenoids might be a good idea. How often do they need to be rebuilt? Is it a normal thing to need to rebuild them every 5 years of so? Actually it's probably been a good 7 years since I've rebuilt mine. I'm running 900psi. now that I have a bottle warmer. But, like I said before...it worked great through 1st, 2nd & 3rd gear. It just seems weird that I'm still having intermittent problems with this system I've had for years.

[84gt347]

i dont know about a rebuild schedule on those. It would be interesting to know if you are getting a black cloud with those cut outs, kinda indicating a rich condition, that would also indicate the nitrous cutting off or running low

Originally Posted by 84gt347

i dont know about a rebuild schedule on those. It would be interesting to know if you are getting a black cloud with those cut outs, kinda indicating a rich condition, that would also indicate the nitrous cutting off or running low

As far as I know there were no black clouds. I had quite a few friends watching the race when it cut out and no one mentioned seeing anything like that. From in the car it definitely felt like a rich condition was occuring. 1st, 2nd & 3rd gears were insane...sticking me back in the seat. I shift into 4th and the nitrous definitely had shut off. It felt REAL slow all of a sudden being back to just on motor, running 8 degrees of timing...with the rich condition, from the second I shifted into 4th, all the way to the finish line.

[84gt347]

well, id start with the things we've gone over so far and move on to other things if its still not solved. i'll bet its one of the things we mentioned already.

Well I'm pretty sure I found the problem! My nitrous filter had a lot of debri in it. Looking through the screen...it's probably 80% clogged. The stuff clogging it looks kind of like teflon. I know not to use teflon tape on nitrous connections though. I've always used liquid teflon on all the fittings on my nitrous system. So how would chunks of teflon get embedded into the filter like that? Or is it possible that the nitrous that I just got filled into my bottle was somehow dirty?! So I'm cleaning the filter out & rebuilding my nitrous solenoids. I want to make sure none of this crap got past the filter and into the solenoids.

[84gt347]

those bottles corrode inside. keep an eye on your filter.