Nitrous too close to TB? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

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Old 03-01-2003, 12:42 PM   #11
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Jeffrey is correct. I looked around and got the info. You would be just fine to inject right by the TB because the intake swirls it around to each cylinder....all because of the design. Kudos to jeff, kudos.
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Old 03-01-2003, 12:45 PM   #12
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thank you,
im getting the itch again for nitrous. might add a ZEx system here in the very near future.
then i want in the 13'*
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Old 03-02-2003, 07:18 PM   #13
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OK so now we know (or at least I do) that its not going to work. I went to the hobby shop and drilled a hole in the end of my intake, sealed the nozzle in there good, and attached that right to the TB. Hey it looks pretty. Went on the road, hit it and the engine just about stalls. It freezes where it is, floored at 40mph it'll stay at 40mph and so on. Probably 1000 things that could be said on why...blah maybe i'll just put it back to normal or do that at the end of the intake tube, which means now i need a longer nitrous line. Anyway thats whats up.


Jason
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Old 03-02-2003, 07:38 PM   #14
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that makes no sense, did you purge your line first?
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Old 03-06-2003, 12:53 AM   #15
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actually no i didn't, would that produce a problem like that? I was actually thinking all that nitrous being sprayed right into/past the MAF sensor was causing confusion in the computer. Maybe? If so would it work out if i made a small partition (with plastic or metal) to keep the MAF sensor from being hit with the nitrous? It would only get about 1/3 of the air but....I dunno.

Jason
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Old 03-06-2003, 01:05 AM   #16
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My engine did similar things when I sprayed too much when testing the system. I turned the car on and she almost wanted to go sleepy with the gas.
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Old 03-06-2003, 03:42 AM   #17
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I know of guys using dry before maf and it can work great but it requires tuning. Ití* easier to go wet or dry after the TB.

Ty
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Old 03-06-2003, 09:10 AM   #18
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Allmachtige what did you do to fix that? I'm only running a 55shot not sure if a smaller jet is available through Zex. The Zex tech line told me that using forced induction with a 55shot is probably ending up closer to 60-65hp so if thats true I wouldn't mind going to a 40 shot and still ending up with what I was looking for with 55hp. And tuning as in what? The timing? A/F ratio? Tweaked sensor? or all of the above? I'd like to make this work the way it is, it sounds really nice listening to the supercharger whine when I floor it and its that much louder with the air filter right on the TB so if I can have the best of both worlds...

Jason
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Old 03-06-2003, 06:25 PM   #19
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To fix it I stopped shooting so much nitrous when the engine isn't running

Why do you want to go less than a 55 shot? Its perfectly safe (for the most part). I went to 65 shot without a hitch. Also I highly doubt Zex has nossles for less than a 55 shot.

Question though, how much of a 65hp shot really reaches the tires?
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Old 03-06-2003, 09:05 PM   #20
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OMG
you never hit the nitrous with out the motor running and at wide open throttle
try using your nitrous and see what happens. if it does confuse the pcm, relocate the jet so it isnt spraying directly onto the MAF sensor.
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