does anyone have any previous experience with installing nitrous on 3rd gen? any opinion or thought on whether the rotary engine can take this punishment. engine has 3 mm apex seals and has been ported, also has about 15000 miles on engine.
thanks for the help.

 

Hey Satan's RX7 I think there are a couple of members with NOS, but not many at all. mOst don't think it's a good idea. But you could check out a NOS install on a FD here:
http://www.rx7turboturbo.com/robrobi...us_install.htm

Hope that helps some.

later Gun

 

"Yes." Is that what you wanted to hear. Or.
"No. We all have Nitrous." Which way sounds better to you. I have 0 experience with Nitrous on an FD but from what I have read they say to limit yourself to a 50 shot, like what Ari uses, due to detonation problems. Make sure you have a fully tuned fuel controller and a good fuel system so you don't lean out. Did you install a Dry or Wet system? Wet is alot safer.

 

I think only the most experienced and "hard core" FD owners do this. Ari is not your typical FD owner. Work up through the upgrade cycle first.

 

who the hell told you that??

 

i don't know for sure, but he probably thinks so for the same reason i do, because wet kits spray fuel with nitrous, as opposed to just nitrous on a dry kit, so you are less llikely to lean out with a wet kit. true of not i do not know......

 

I read the same thing from the other nitrious posts that have been made. I have no experience with nos but this is what I have been told to do if you do any nos at all.

 

sorry, to answer your question: DO A SEARCH!!!

https://www.rx7club.com/forum/showth...&highlight=nos

https://www.rx7club.com/forum/showth...&highlight=nos

https://www.rx7club.com/forum/showth...&highlight=nos

just a few

 

wet kit is more dangerous cause if the fuel solenoid gets stuck, you run extremely lean and will blow your motor. On a dry kit, you get extra fuel by your injectors when you ingage your nitrous. Most kits have some electronical device that tricks the computer to give more fuel or adds pressure to the FPR. On a dry kit, if any of the solenoids should stick close, you will just run rich. On a wet, you could chance the fuel line being stuck and having to buy a new engine.

Running lean when operating properly has nothing to do with being wet or dry. Tuning is a big issue in both wet and dry. Without the proper tuning/mixture, either could run lean and blow your motor. So yes, a wet system does spray nitrous and fuel but so does a dry kit. It just does it in a differ. way

 

Dry kits are much safer up to a certain shot.....and also depends on what car. On the FD a dry kit is perfect because your most likely not going over a 50 anyway. On my Mustang I have a 150 shot dry kit....i have always used dry kits and never any problems. I have a direct port kit on my AE86 that did the very thing that REDTT was just talking about. Locked up the fuel solenoid and BOOM!

I would learn alot about nitrous before using it on your FD. I would also learn alot about tuning and everything else before using it on an FD. There's more to a kit than most people think....you have to take alot of precautions before you just bolt a kit on and go.

 

You guys need to stop all the non-sense rumors. Ari doesn't run a frekin 50 shot.....try 150 plus 30lbs of boost. Your right on the wet system being safer.
If you have a Haltech, its pretty easy to tune. Just tune without the NOS on race gas, then take 3 degree's timing out across the board and your done.

 

thanks a lot gun for the link to the install of the nitrous, and thanks for the replies, i think i am going to use a 30 or 50 shot wet kit, and use it very very sparingly.

 

ErnieT: Wet system safer?? For what size shot? On small shots the dry is the safer way to go....hands down! Your right on the tuning.....that's if you take the time to tune for nitrous which most people don't do. That's also for people who know what their doing.....again which most people don't.

Ari with a 150?? That's an assload of nitrous!! On top of 30psi?? How much power is he making? I thought he's making like 650 or something......with a turbo car you don't have as much of a power loss because of the cooling effects for the turbo (meaning a n/a with a 150shot would be around 115-120rwhp). 30psi with a t78 should already be around 570 or more rwhp right? Then a 150 shot should put him over the 700rwhp mark. Does he have that much power? How come he only runs 10's? Almost all last season he was running low to mid 10's. 700rwhp and only running 10's??? With a car that weighs 2800lbs ?

I hope this doesn't come across wrong.....I'm just really suprised by that.

 

I thought Ari ran his best at 9.2 or 9.1? I don't believe that time was achieved during the season though.

 

that was with a g-force tranny on slicks.... with a tail wind, 50deg. weather Just kidding....but it was with the aftermarket tranny from what everyone has said. It has to have been.....don't think the stock tranny will hold that kind of run.

 

I don't know if they make an FD specific kit... but look into ZEX or Venom cheater gas (caugh) i mean nitrous kits. If you want to run this stuff... these kits have a smart system that runs off of the air/fuel that is going on in your engine. You don't get a sudden burst of speed (fastNfurious style) but you get a dependible shot that still produces the same effect as other kits. You just have to have them armed to have it work... or leave it off. PLEASE PLEASE DON'T FORGET TO UPGRADE THE FUEL SYSTEM!!!!!!!! Otherwise you are going to be very sorry. These two kits are more expensive than other kits (venom is a lot more... but a lot "smarter"). I have actually seen the ZEX kits going for 500 for the kit... so it's not always that much more. Hope this helps... I personally don't like the stuff (ricey to me), but to each his own.

 

a lot of those kits come with a little device that you hook up to the stock regulator and it raised fuel pressure and nitrous is added.

 

Also Ari only uses the nitrous at launch to get that massive turbo spinning - NOT when the boost is up over 20psi

 

In the September 2000 issue of Turbo it says Ari was running 28 psi with a "75-hp Nitrous Express wet manifold system." They say that the n20 stays on until 22 psi, but he has a button that will pump it for the whole run. Back in 2000 his best time was 9.62 @ 144 on slicks with the factory tranny. Their dyno run shows 561.7 hp without nitrous and 645.7 with nitrous. He has to be doing better than that by now. BTW why bother with nitrous when you can spend the money elsewhere to get less risky, yet equally benificial gains?

 

what $450 mod can you do to get a 50HP+ gain?