C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

NOS PROBLEMS!!!!! HELP PLEASE!!!!!

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Old Oct 21, 2002 | 02:56 AM
  #1  
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Default NOS PROBLEMS!!!!! HELP PLEASE!!!!!

Hey Guys... Whenever I shoot the NOS, the car bucks and isnt smooth at all... Its as though the bottle is low or its got air in the system.... What should I do... The bottle def isnt full.. but its got some in there.... And when It does shot, it doesnt really feel like a 150 shot...... SHould I get a purge valve??? Is it bad tto not use one... I don tknow much about NOS.. i got the kit for free..... Never really a fan of the stuff... but it was free... And info would be great.. I know the basics and stuff.... Any little secrets to it i should know.... tips??? Stuff makes me nervous
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Old Oct 21, 2002 | 04:23 AM
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Default Re: NOS PROBLEMS!!!!! HELP PLEASE!!!!! (StealDads67)

check your wiring.....clean you nitrous filter.... check system for proper operation.....start with basiscs
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Old Oct 21, 2002 | 10:29 AM
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Default Re: NOS PROBLEMS!!!!! HELP PLEASE!!!!! (HR383)

check your wiring.....clean you nitrous filter.... check system for proper operation.....start with basiscs
Then after you do all of the above, add a purge. Then take the car to a chassis dyno and work on dialing the system in. Before you go, get jets 2 and 4 numbers smaller than what you've got for fuel jets now. If you're already spraying 150 hp, I'd also get NOS jets 2 numbers lower than what you've got. I'd also tune on a full bottle. That way you'll know you're safely rich as bottle pressure drops.

A bottle warmer is important for consistancy.

Use W/B 02 readings, but also check the plugs. NOS can play tricks with W/B's. A friend broke 7 out of 8 pistons running 12:1 A/F measured with a W/B. It was actually leaner than that.
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Old Oct 21, 2002 | 01:40 PM
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Default Re: NOS PROBLEMS!!!!! HELP PLEASE!!!!! (SloRvette)

Are you running a fuel pressure safety cut off switch? My adjustable one was set too high and it did pulse when I went up to a 150 shot. A little turn of the screw fixed that right up for me, but I'm running a Warblo 255LPH pump. On the stock pump you might be getting close to maxing it out.
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Old Oct 21, 2002 | 02:32 PM
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Default

Tune tune tune. Get a scanner on it and get to a dyno. You don't want to blow your engine do you? Do it right. I've done some Diacom runs onmy car and still have not tried more than a 50 shot 4 times so far because I haven't yet gotten the WBO2 onto the car to check it out completely.
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Old Oct 21, 2002 | 02:42 PM
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Default Re: NOS PROBLEMS!!!!! HELP PLEASE!!!!! (mn_vette)

Are you running a fuel pressure safety cut off switch? My adjustable one was set too high and it did pulse when I went up to a 150 shot. A little turn of the screw fixed that right up for me, but I'm running a Warblo 255LPH pump. On the stock pump you might be getting close to maxing it out.
This was going to be my sugestion as well.

I have a light inside the cockpit that illuminates when the system is firing so I know when it is really on or off.
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Old Oct 22, 2002 | 09:17 PM
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Default Re: (scorp508)

Tune tune tune. Get a scanner on it and get to a dyno. You don't want to blow your engine do you? Do it right. I've done some Diacom runs onmy car and still have not tried more than a 50 shot 4 times so far because I haven't yet gotten the WBO2 onto the car to check it out completely.
scorp your mistaken VERY much so...
hes only praying for a blown motor.
he already built me a stroker-
now he wants one
this is the way it goes with us
I got my first car (subaru)
he got a v6 camaro
I got Z28
he got L98 vette
i got long tubes, catback and gears
he got nitrous
i got stroked AND nitrous :reddevil

we need to stop communicating before were broke with top fuel dragsters :rolleyes: :cool:


but hey-
always a good time :cheers: (even if i have to come pick you up because the cops are- ehh never mind)
:smash: <---- your judge in 6 months


[Modified by TreyZ28, 1:18 AM 10/23/2002]
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Old Oct 23, 2002 | 03:48 PM
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Default Re: NOS PROBLEMS!!!!! HELP PLEASE!!!!! (StealDads67)

I hope to God its the nitrous soliniod you stole frome me :boxing :cuss
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Old Oct 23, 2002 | 09:44 PM
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Default Re: (TreyZ28)

Hahaha... Trey your a mess.... And Yes guys... I did steal his N2O solednoid..... SUCKER!!!!

Don worry... Ill beat you.... Dont worry... The motor may blow after the run... but it shall happen, just you wait buddy... dont forget, i built your motor! :D
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Old Oct 23, 2002 | 11:15 PM
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Default Re: (StealDads67)

forget?
you thinki i'm using my cellphone minutes to call you because i want to date you? i just want my damn car!
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