Problems problems problems
Problems problems problems I just put a ls6 manifold on my car, along with 28lb injectors, and i hit the nitrous and the car barely hits, then the exhaust starts popping and i throw it in neutral and it shuts off, i throw it back into gear and it turns on again and runs like ***, then after a few minutes of trying to limp it back home it starts running good, so i go make a few more NA pulls and its running fine with all the power it should have. I cant figure out why its running like this 
and for some background info i have a HSW plate with a NOS kit, i havent used the nitrous in a good month or two, and bottle pressure was a bit low (700psi)
what im thinking is that the extra feul from the 28lb injectors vs the 26lb injectors are making it run a bit rich, but could it really make it run that much more rich? with the 26lb'ers i was at a solid 11.6 11.7 a/f ratio across the board. ARGH this thing is giving me a headache, im about to ditch the nitrous system and just throw a cam in this thing. Can anyone lend some info?
and for some background info i have a HSW plate with a NOS kit, i havent used the nitrous in a good month or two, and bottle pressure was a bit low (700psi)
what im thinking is that the extra feul from the 28lb injectors vs the 26lb injectors are making it run a bit rich, but could it really make it run that much more rich? with the 26lb'ers i was at a solid 11.6 11.7 a/f ratio across the board. ARGH this thing is giving me a headache, im about to ditch the nitrous system and just throw a cam in this thing. Can anyone lend some info?
10 Second Club
Joined: Apr 2005
Posts: 685
Likes: 0
From: Clarksville, IN
That bottle pressure is pretty low. Need a little more info though. What is the set-up for the nitrous system? What size shot? Do you have a fuel pressure safety switch? Did you program for the larger injectors?
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Oh no doubt, the bottle is just low and it takes nearly a half hour to warm up to even 900psi, i need to get it refilled soon. But as for the hit, it dyno'd 436hp and 460tq on 100shot with just boltons with a HSW plate on 900ish psi. Im hoping with the ls6 manifold i'll be making about 450 on the 100shot.
with the 26lb injectors I was at a steady 11.6 11.7 a/f ratio across the board, with the extra 2lb with of fuel from the 28lb injectors even matter? I guess I'll throw it on the dyno and see what she makes.
Oh no doubt, the bottle is just low and it takes nearly a half hour to warm up to even 900psi, i need to get it refilled soon. But as for the hit, it dyno'd 436hp and 460tq on 100shot with just boltons with a HSW plate on 900ish psi. Im hoping with the ls6 manifold i'll be making about 450 on the 100shot.
I know i need one badly. When i get the money I'll get it done, but its like 600 bux 
TECH Fanatic
Joined: Aug 2002
Posts: 1,959
Likes: 0
From: Alvin Texas
ther is quite a difference between 28 lb and 26 lb injectors..you need a tune..or put the 26 lb injectors in and spray the **** out of it at about 1000psi and it will be a world of difference.
Lol geez, you tune ****'s. Haha jk, im saving up for a tune, the car rarely gets driven anyway, and i hit the nitrous at the most once a month, but a tune is definately the next mod, that and a feul pump. Help me sleep at night.
