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Big shot on a stock car? Few questions.

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vanilla gorilla

15+ Year Contributor
696
48
Sep 11, 2007
Orrum, North Carolina
So I have an all stock 96 gst. Bought it really cheap from a friend. Runs but has a bum tranny. I've already bought another 5 speed gearbox but have yet to install it, because I havent decided what clutch I want to go with.

So heres what I want to do with the car. I'm building it into a cheap, dependable, drag car.

I have a compucar EFI wet nitrous kit off my brothers z28 camaro. Its jetted to 100 shot right now. The way its setup is the fuel supply is ran off the schrader (sp?) valve.

I have a few questions. How could i adapt this to work on my car? I was thinking I could get a banjo bolt with an additional fitting on top. This way I could run the fuel feed for the solenoid off of the top of my fuel filter. I know this will work, but will my stock fuel pump supply enough fuel? I was thinking I could drop in a 255lph pump. Would that be enough fuel to support the engine and nitrous?

OK, other than that. I know my engine can hold the power. But will I need any tuning? Running race gas on an otherwise stock setup. In my eyes it seems like I shouldnt need any additional tuning. On the camaro we are running the 100 wet shot with no tuning at all....no modifications or anything. Stock fuel pump too. I kno alot of people are running nitrous control through LINK, but for my particular application is that neccesry? If it knocks the engine is going to pull timing right?

What do you guys think? Let me know.

I mean, I'm trying to get out as cheap as possible. Thats the whole point of this build. Budget build up.
 
Since Phunny dug up this thread I will add my two cents. First off all, without seeing any numbers I cannot do any math. You could assume that a 100 shot on a V8 would be closer to a 200shot on a 4cyl car with half the engine displacment and half the fuel flow.

Hooking up the fuel system will take 'common' sense and lots of safety checks. Without seeing exactly what you are trying to do its hard to make any recommendations, what you described doesnt sound like it will work.

And yes that system DID have 'engine management'. I used to have a Mustang Cobra with nitrous and the way the NOS system added fuel (IE, engiemanagment in the simplest form) was with a special pressure system that removed all vacuum and actually added pressure to the fuel pressure regulator with the theory of opening the diaphram even more. The factory FPR on a non-boosted vehicle uses vacuum to open the regulator. At idle=max vacuum,least fuel pressure. At WOT=no vacuum,max pressure.

You will have to use an adjustable rising rate fuel pressure regulator and/or a 'wet' system(that like you described) with the properly calibrated nozzels. So basicly YES you will do damage if you try to use that system on your car with out the proper modifications and adjustments.
 
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