LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old Feb 20, 2006 | 11:35 PM
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I just put a home made Nitrous kit on my 94 z28 (a4) and I'm having a problem with the car in 1st and 2nd gear. It is popping like its not getting enough fuel. its a simple kit bottle, line, nitrous silenoid, 90 jet, nozzle, before the mass air. I spray it in 3rd and it pulls just fine, just like its supposed to. I'm stumped, any suggestions?
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Old Feb 20, 2006 | 11:37 PM
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how much are you spraying??? What is your fuel pressure at WOT without nitrous?

How old is the fuel pump in the car?

I would clean your injectors... make sure your not runnign too large of a shot... replace old wore out fuel pumps... this and that. lol...
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Old Feb 20, 2006 | 11:54 PM
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make it a wet kit and spray some more fuel? what is your bottle pressure when you spray??
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Old Feb 21, 2006 | 10:56 AM
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mine did that without a msd box
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Old Feb 21, 2006 | 11:14 AM
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cant spray through the maf on an lt1
if your not adding fuel with it you are running lean.
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Old Feb 21, 2006 | 09:45 PM
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Originally Posted by blkchevyz
cant spray through the maf on an lt1
if your not adding fuel with it you are running lean.
then i would love to know why you can buy dry kits for the lt1 all day long... DUHHH... the MAF does see the extra oxygen and DOES compensate under it under most curcumstances...
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Old Feb 21, 2006 | 10:08 PM
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MY car has stock fuel pump and stock injectors, 90 shot right now. The bottle pressure is around 900, I took off my hpp and it stopped doing it in 2nd. First gear is still a mystery I think it just needs more fuel pressure.
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Old Feb 22, 2006 | 06:36 AM
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Originally Posted by Dragframe
then i would love to know why you can buy dry kits for the lt1 all day long... DUHHH... the MAF does see the extra oxygen and DOES compensate under it under most curcumstances...
because the dry kits have a modual sortof like a fmu on a supercharged vehicle.

the maf/computer doesnt compinsate quick enough for it.
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