I know that this one of the most arguable topics, but here it is. I ordered a NOS brand system from Summit today and talked to a guy that works in the tech dept., he was glad to visit with me as he has a 87 GXL, if I understood him correctly, he has the same kit on his car and loves it. I also talked to the guys a NOS in Cali, they say the kit for my n/a was designed for near stock applications, which mine is except for the exhaust. I checked around and this same kit sells for 700.00 at a local shop, I got it for 507.00 shipping and all. Thing is, the shop wanted over 300.00 to install, I plan to do that myself, has anyone purchased this kit, and have you installed it. I am looking for all the information I can get before I get the kit.

I know that some of you may say, "Good bye to your engine", but all BS aside, What do you think? The kit should be here by the middle of next week. Thanks for all of the information you can provide. The guy I talked to at Summit will be getting on this site, because I told him I have never seen the wealth of information you people can provide, and like me, he cant find anyone locally that can help him with his ride. Look for his car on the next Sport Compact catalog from Summit.

I say have fun, and I hope you got a wet kit.

Wet it is. And on the way, I cant wait. :twisted:

That'll be fun.I can't wait till mine shows up. :twisted:

wet or dry whats the diff? https://www.nopistons.com/forums/pub...IR#>/dunno.gif

Wet means that the NOS is injected directly in the manifold at the same time the fuel is. Dry means the NOS is injected into the intake before the mainfold then atomizes before it reaches the fuel.

And my mistake, my system will be a dry system, as my car is N/A. NOS recommends a wet system for higher HP engines, such as Turbos and Supercharged applications. NOS only makes the engine use more fuel and is not a fuel itself, and on dry applications, it cools the air coming into the manifold by as much as 75 degees. I am only quoting the information I have read printed by NOS on thier website. More to it than I thought.

Yup very true.My setup will be a 75shot of wet.With a Air/Fuel guage to make sure it doesn't lean out. :rant: Last thing I want to do is lose a rotor. :rant:

The problem is i cant see the problem. Every one talks about how bad nitrous is for a rotory but why? I had a zex kit on mine until i took my car apart this winter for all my new mods and had no problems showing up on the dyno. Im now putting a wet system on my car to put a more eficiant 55 shot to it. Alls you are doing when you use nos is cramming more oxygen into the combustion chamber so if you have plenty of fuel and spark to compensate for the addded oxygen then whats the problem????? I keep hearing you guys say it gums up on the rotor "huh" can some one please tell me were the gum is coming from cuz again it is just oxygen? Granted there a couple different chemicals in there but its basically Oxygen that is very cold...........

I need a air/fuel guage myself. I have seen the pillar pods for about 24 bucks for a single.

I HEARD that u can use nitorous to help spool up ure turbo faster. Um where do u guys keep the bottles hidden. Arnt u scared cops will take ure ride if they find it?

I dont have anywhere to hid mine. I dont have a back seat, and the very back is taken by my subwoofer enclosure. You are supposed to mount the bottle at a 15 degree angle with the top of the bottle pointing towards the front of the car. I guess I will mount it behind the cargo hatch behind the passenger seat. Besides, I dont think the cops will give a hassel unless they catch you racing on the street. I will have to watch myself for sure now.

what? why would they take your car? this isnt cali =]

in NY that **** aint legal man. They take ure whip away

its legal as long as the nos isnt connected if it is ure fucked!! :bigok: CALI style

Hehe....put under the passenger seat...J/k

Not sure why yall want the kits but if it is for racing then the law states it is only illegal if the bottle is hooked up. So if you are not using it on the street then just unhook it. If it is for street use then...I dont know https://www.nopistons.com/forums/pub...IR#>/dunno.gif

dang....you beat me

I dont know about that here, I know a cop, I will have to call and ask him about it. I know one guy that has it on his El Camino, he leaves his connected.

who me lol. sowwy. But i dunno thats the only reason why i dont get nos cuase of the legality issue. Its like grey but not grey nah mean. Legal but not legal. But if its unconncected they can still say it was connected u know. Ure word against theres so u wont win. I was thinking right. Make a speaker system in the back right and put a piece of wood or waht ever horizontaly in the hatch then under it have ure two bottle (hehe) laying down and on the top it just looks like a speaker system lol. or hide em in the rear bins lol

see they dont mind if an AMERICAN cars has it . But if a jap has it they gonna braker ure rotors nah mean. Ive seen american cars with no cats , nos and cops dont pull them over. A rice with mad stickers and a wing and no exhaust

was pulled over and the car was inspected mad grimmey ****.

Have fun with it.. https://www.nopistons.com/forums/pub...#>/biggrin.png I just hope it will last you a while.. I can imagine that **** will get exspensive after sometime..

I dont know, it would have to be one hell of a box for bottle and 2 12" subs to fit in. I dont think it would fit under the cargo bin and be at the right angle. I will have to do some thinking on that. But I will definitly find out from the TPD.

It will cost about 30 bucks to fill the bottle, 10lb., and that will last for 10-15 minutes of boost. I havent done the math, but an average shot will last for a few seconds. But I dont know for sure, but I plan to find out. But I will use it wisely, the last thing I need is to go to jail and have my CDL suspended.

yeah. My brother in law has a 77 chevy malibu with two bottle of Nitrous one behind the back seat and one in the trunk. HE had slicks and would do willies down the strip in the bronx. The shot of nitrous lasted about 3-6 seconds. estimating since i was in the back seat holding the bottle cause it was messed up. It was wrappped in a jacket and i was holding hoping it wouldnt blow up lol. This was like 5 yrs ago lol. :bigok:

Damn, you are brave, I dont plan to hold mine! And I did call the Oklahoma Highway patrol and TPD, they both said that there were no laws regarding NOS or having them in your car. He just told me not blow myself up. Wasnt that nice? So, I wont be cited for having the bottle in the car or having hooked up. :twisted:

as quoted from: http://1300cc.com/howto/how2/NOS.htm



The RX-7 and nitrous:

Wet Vs. Dry:

Which is better on an RX-7? The stock fuel injection system on RX-7's is being pushed pretty hard even at the stock ECU usage. Attempting to push more fuel through the stock injectors can prove fatal when the injectors simply cannot provide enough fuel for the engine. On the other hand, dry nitrous kits are much less likely to nitrous backfire.

So, in this case, the answer is dependant on user needs and existing modifications. For situations where 50 hp and lower tuning is being used, the stock injectors should provide adequate fuel for nitrous use. However, if your motor is severely ported, and extremely modified, you already may be approaching your injector delivery capacity. As well, a clogged fuel injector may just slightly lean out stock performance, but could absolutely destroy a motor running on nitrous.

Overall, I completely recommend wet kits. It offers easier tuning, does not rely on the already sketchy stock fuel injectors, and offers a wider amount of power. A dry system should really only be used on a minimally modified N/A RX-7 looking for no more than a 50 hp increase, and have verified a perfectly working fuel injection system, complete with recently professionally cleaned injectors. Turbocharged vehicles should never run a dry system.

Seeing as how most users have already modded their cars and are looking for 60-75 hp shot, it seems to make the most sense to concentrate on wet kits from this point on.





It's always wet for me. :\ Especially if you're spraying a 75 shot.

My shot will be less than 75, around 50 for the stock engine, this system was supposed to be designed for a stock application. But I may replace the fuel pump anyway.

I will be using a 50 hp shot. I will replace the fuel pump just to make sure it is fresh, but my car is not turbo. I aplogize for the name, I had this setup and was doing research before I got the got car.

Well, my system is in, and I must say the installation was a pain in the ass. Turns out they sent me a wet kit. I didnt use the microswitch that came with the kit, I dont think I will ever figure out how to mount that cheesy bracket and make it stay. If anyone has a pic of this installed, I would like to see it. Here is a pic of where I put my arming switch and the push button switch.

hmmmmm i really dont see the point of that........ or do what my freind did, he conncted it under the manifold, so you cant see it when you open the hood https://www.nopistons.com/forums/pub...#>/biggrin.png

i like the mounting points for the switches...nice and neat...use black switches....for stealth :-)

Black switches arent a bad idea, maybe i shouldnt have wired the arming switch to light up when toggled.

Don't bother with the A/F guage. By the time it reacts it's game over, You've already gone lean.



What you need is a Wideband O2 Sensor... and guage. Something like WIDEBAND would be ideal.



I've heard this works pretty well and with the digital readout is far more accurate than any A/F meter on the stock O2 sensor.



Having said that... yes I have a A/F sensor on my car. But I will get a WIDEBAND soon. As the A/F is okay for GROSS adjustments... but not for realtime or accurate tunning.

Cool, thanks for the info, you saved me some money.

So, when are you going to take me for a NOS ride? https://www.nopistons.com/forums/pub...#>/biggrin.png

As soon as I can get the fuel pressure to build back, I dont know what is causing the problem, no leaks, and will not prime. My next step is to pull the plugs and squirt a little atf in there, maybe that will help. It ran fine yesterday until I cut the fuel line so I could feed the fuel solenoid.

Cool

people think nos kills your engine because of F&F. Most people don't know what they're talking about, so they automatically assume nos kills your engine. It only does if set up wrong. If you do it right the only thing you have to worry about is your drivetrain.

Preach on Brother, I finally got it running correctly today. I went through all the check lists today and my car is set up according to NOS requirements. Just to let everyone know what was wrong, when I primed the fuel system, I flooded it, I ended up having to pull all four plugs, clean them, aft the plug holes, and she came alive! Then she idled at about 3200 rpms, that made me scratch my head, so read the repair manual, couldnt find anything, then I started checking the engine bay, turns out, it was something stupid https://www.nopistons.com/forums/pub...IR#>/blush.png , but I adjusted the dash pot, or at least that is what it is by the repair manual, all is fine, she runs great and I cant wait till Monday to get the bottle filled.