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

NOS question

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Old May 30, 2007 | 08:35 AM
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ok i wanna get some juice for my car, would this be a good idea or should i look elsewhere? i dont know anythign about this stuff. heres a site i found
http://www.performancecenter.com/pro...c+Systems/5.7L
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Old May 30, 2007 | 08:37 AM
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I personally prefer a wet system over a dry system. I have been running an NOS 5151 wet plate system on my 87 for 12 years with no issues.
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Old May 30, 2007 | 08:42 AM
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what is the differance, and i have a stock LT1 except for intake and exhaust. what size setup should i get?
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Old May 30, 2007 | 08:42 AM
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I've been doing my research on nos also - I like what you've found. I don't like the idea of a wet system - I've already got gas going into the intake, why do I have to route more into an area that was designed to not have any? Maybe for better combustion purposes, but I feel the less modification to the system the better, especially dealing with a newly routed fuel line. I had a hard time finding dry systems for the L98 - obviously not gonna be your problem.....
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Old May 30, 2007 | 08:47 AM
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Originally Posted by derekguzz
what is the differance, and i have a stock LT1 except for intake and exhaust. what size setup should i get?
A wet system injects nitrous and fuel into a plate that sits behind the throttle body. The plate mixes the fuel and nos together and sprays it into the plenum.

A dry system spays nitrous only in the intake tract. Usually just behind the air cleaner. The fuel enrichment with a dry system is usually done through the injectors. Pressure is pumped way up, causing the injectors to spray the needed fuel to support the nitrous.
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Old May 30, 2007 | 08:49 AM
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Originally Posted by jmrl98
I've been doing my research on nos also - I like what you've found. I don't like the idea of a wet system - I've already got gas going into the intake, why do I have to route more into an area that was designed to not have any? Maybe for better combustion purposes, but I feel the less modification to the system the better, especially dealing with a newly routed fuel line. I had a hard time finding dry systems for the L98 - obviously not gonna be your problem.....
There is a split vote on wet vs dry. Each has advantages and disadvantages. After putting 30+ bottles through my last 383, I can say I prefer the reliability of the wet system. It works well for me, so I will continue to run it.
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Old May 30, 2007 | 09:15 AM
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well do u think i should go wet or dry then people. and thanks pete k for all the info, i heard ur the man, glad to see ur helping me out. and should a 50 shot, 75 shot or that 80 i was looking at be good? i dont wanna push it too much, but just when i need it, plus i dont wanna blow an engine, i heard wet shots blow an engine easier, but pete k, dont look like u have problems....thanks guys
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Old May 30, 2007 | 10:11 AM
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Originally Posted by derekguzz
well do u think i should go wet or dry then people. and thanks pete k for all the info, i heard ur the man, glad to see ur helping me out. and should a 50 shot, 75 shot or that 80 i was looking at be good? i dont wanna push it too much, but just when i need it, plus i dont wanna blow an engine, i heard wet shots blow an engine easier, but pete k, dont look like u have problems....thanks guys
I vote for the dry, especially since you are only looking for a 50 or 75 shot. I use the ZEX kit. It is an easy kit to install and comes with the WOT saftey switch built in. It also increases or decreases fuel based on bottle pressure. So it is less likely to run lean or rich when spraying. It also comes with the inline fuel booster. I upgraded my injectors to 24# SVO's just to be safe but it probably wasn't necessary. Do not forget to change your fuel filter, just in case. Also change to a colder plug. I use NGK TR6's gapped to .035. They are cheap and work well. You'll also want a bottle heater once the weather gets cooler. You can purchase any pressure gauge as long as it fits the bottle. You may want to retard the timing 2 deg for every 50hp shot. I have a custom tune for the nitrous that I program into the PCM with my laptop. This retards the timing. I also have a non N2O tune that I can swap back to. You could also go with an MSD box to retard the timing as an alternative option. Many people use smaller shots (50) without changing the timing. I'm running a 125 shot and I would rather not take the chance. If you ever plan on running a 150 shot or larger then I would go with a wet kit instead. At that point will will need the extra fuel from the silinoid to keep up.




http://www.zex.com/Base/Instructions/ZEX130.pdf

Last edited by rickneworleansla; May 30, 2007 at 03:18 PM.
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Old May 30, 2007 | 11:09 AM
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wow thanks alot guys, seems alot more involved than i thought. but i really want to get it. do u guys only shoot it at the track or on the roads too?? i dont go to the track so thats why i might eliminate the thought of getting nos...
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Old May 30, 2007 | 01:20 PM
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Originally Posted by derekguzz
wow thanks alot guys, seems alot more involved than i thought. but i really want to get it. do u guys only shoot it at the track or on the roads too?? i dont go to the track so thats why i might eliminate the thought of getting nos...
Well we can't talk about street racing here so I really can't say that I've used it on the street. Actually yes, I have used it to accelerate very rapidly up to the 70mph speed limit entering the interstate. Yes I have also used it on the track. I would continue to read up on it before deciding. Check the FI/nitrous section. You will definately love it. Once you use it, it becomes extremely addictive.


Last edited by rickneworleansla; May 30, 2007 at 01:23 PM.
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Old May 30, 2007 | 01:50 PM
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I personally like the wet systems best but with lower level power settings you should be very safe with 50 to 75 horsepower.
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Old May 30, 2007 | 04:34 PM
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Originally Posted by NitrousSam
I personally like the wet systems best but with lower level power settings you should be very safe with 50 to 75 horsepower.
However if you run a 50 shot you will get bored with that real quick. Nitrous is like a $50.00 hooker you know you shouldn't hit it all the time but once you start you can't stop. A wet 100 shot would be what I would suggest.
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Old May 30, 2007 | 05:25 PM
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Originally Posted by derekguzz
what is the differance, and i have a stock LT1 except for intake and exhaust. what size setup should i get?
If you are putting it on the car yourself, I would go with the Zex dry kit and put the jets in for a 125hp shot. I am not an expert by anymeans, but it is very,very easy to install, and it has a brain that controls the juice flow. It takes readings off the tps sensor,for timing and fuel and safely adds the juice. It also hooks up to the vaccume lines to the fuel pressure reg, and intake. If the brain detects a change in timing,fuel, or vaccume it will shut the nos off. I know people that run it and have had good luck also,like me
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Old May 30, 2007 | 05:27 PM
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Like I said though Im not an expert
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Old May 30, 2007 | 06:51 PM
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nitrous is like a hot chick with an STD, you wanna hit it, but your afraid of the consequences.
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Old May 30, 2007 | 10:20 PM
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well its good to be safe but i take chances being young, but i dont want STD's,,,what should i do, i dont race at the track so im not sureeeee...??
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Old May 30, 2007 | 10:41 PM
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my 2 cents - 50-75 shot isnt worth doing, you can get close to that performance with a few properly selected mods, that are always there and "safer"
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To NOS question

Old May 30, 2007 | 10:51 PM
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If your are not 100% sure how it works or if you will like it or not, avoid it. Go lean for 1 second and it goes boom.
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Old May 31, 2007 | 07:56 AM
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thanks alot for the advice guys, i think NOS would be more suitable for me on the track. but i think i will go the route of mods. like a cam, heads, injectors, a few other things.
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Old May 31, 2007 | 11:24 PM
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Dude, don't ever be afraid to do something because you don't have the knowledge. The knowledge is out there, you just need to go get it. There's a write up I wrote on my website dedicated to newbies and nitrous oxide:

http://www.jkvette.cz28.com/whats_new_3.html

Hopefully, that'll clear up some confusion. It's long, so check it out when you get some free time.

Your car should tolerate a small shot like you are considering pretty much forever. In your case, wet or dry should work just fine. If you'll be installing it yourself, dry is a bit simpler so I'd probably recommend that. If you get some help from someone whose done it before, either system is pretty simple.

If you decide to do it, let me know. We can take your car up to the shop one weekend and I'll help you install the kit on my own time, all it'll cost you is lunch. We should be able to knock it out in just a couple hours.

Good luck man, and always remember, SPRAY is the WAY!
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