1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Nos?

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Old Aug 29, 2002 | 11:11 PM
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Question Nos?

Can we put nos on 12a motor where can we get it and how much of a shot can it withstand and is there other things i have to do ie bulking up the engine?
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Old Aug 30, 2002 | 12:30 AM
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SUPRAMAN
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That's intresting. Im trying to think where you would route it into the engine. aren't 12a's carb.?
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Old Aug 30, 2002 | 12:33 AM
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You are one lucky man!! If this had been the 2nd gen forum you would be roasted! I have seen many people ask about "NOS" and be flamed for not saying nirtous oxide. However the man to speak to is scathcart he is the local nitrous guru. But from what i have read 50 shot of wet or dry (but wet is safer for your car) can work with no fuel modification and only a couple degrees timing retard.

Good luck
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Old Aug 30, 2002 | 12:35 AM
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Hey RX7withNitrous I also have been looking into using nitrous on a carbed motor and you have to drill a mounting hole in the intake manifold.
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Old Aug 30, 2002 | 01:04 AM
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i have nitrous on my second gen i just put the hole right in the intake pipe.
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Old Aug 30, 2002 | 01:46 AM
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What aout something like this...Holley has quite a few kits for carb plate applications...

https://www.rx7club.com/forum/showth...hreadid=106409



~T.J.
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Old Aug 30, 2002 | 02:10 AM
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OOOHHHHHHHHHHHHHHH now that is sweet!!!
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Old Aug 30, 2002 | 08:04 AM
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Originally posted by RotorMotorDriver
What aout something like this...Holley has quite a few kits for carb plate applications...

https://www.rx7club.com/forum/showth...hreadid=106409



~T.J.
That kit is for a V8 with either a Holley or Quad. You will have to change the flare jets to smaller ones if you get it.

How do I know? I have that kit (modified) on my GSL-SE....
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Old Aug 30, 2002 | 08:34 AM
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From my understanding I agree with knight1976, the nos is usually shot trhough the intake manifold and it can be done on a 12a, I've seen them run strong like that...
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Old Aug 30, 2002 | 10:40 AM
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Originally posted by David88vert


That kit is for a V8 with either a Holley or Quad. You will have to change the flare jets to smaller ones if you get it.

How do I know? I have that kit (modified) on my GSL-SE....
No ****? How's that run? How often do you use it?
Ever gone down the track with it? Times?

I have a friend with a 4 port streetport and the Juice, and he insists he will beat me in the 1/4 after my swap is finished. I know he won't, but I am curious to what he really will run.

He runs Low-Mid 14's without the juice, but he hasn't disclosed how he runs with it on. (75 shot)
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Old Aug 30, 2002 | 10:51 AM
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Beat him...the first time you do, he's going to switch in the 250 shot jets and want to run for money...take it just to see the engine blow...it'll be great....another member on this Forum says he's running a 100 shot with no problems with his basically stock 12A...
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Old Aug 30, 2002 | 11:36 AM
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I was running a 100 shot, just cut it back to a 20 shot, but haven't been using it lately. I have other problems that I'm dealing with right now. Currently I have a fuel delivery problem (too much fuel), so I've been working on fixing that before spraying again. I'll have to start from scratch again on tuning.

One thing though - a 100 shot sends your torque through the roof. :-) Haven't bother running down the track with the bottle - this is not a drag car. It's my street toy.
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Old Aug 30, 2002 | 12:03 PM
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i have a 50-shot bet it could handle 100-shot though. Im selling my car anyone intrested?
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Old Aug 30, 2002 | 01:37 PM
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I swear....between Manntis and Attila the fun, this is starting to become a classifieds corner...
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Old Aug 30, 2002 | 01:53 PM
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point taken. I'll shut up about products now
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Old Aug 30, 2002 | 01:56 PM
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Originally posted by mar3
I swear....between Manntis and Attila the fun, this is starting to become a classifieds corner...
Nothing wrong with offering a quality product at a discount price.



Besides, Anybody wanna buy a...
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Old Aug 30, 2002 | 03:23 PM
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Guys there is a specific NOS (brand) system for 12a rotaries. I plan to run a wet system. Cost is under $600 in summit. You will need many other accesories and thus making this mod a bit more expensive than everybody thinks. A must is having all the gauges and keeping up with the fuel demand. Better safe than sorry is what most folks think about when doing a nitrous install.


a 100hp is pretty safe and should put the car well on the 12s 1/4 with a stockported 12a engine.

Hope that helps.
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Old Aug 30, 2002 | 03:26 PM
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Originally posted by mperformance
a 100hp is pretty safe and should put the car well on the 12s 1/4 with a stockported 12a engine.
Ummm.... No.
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Old Aug 30, 2002 | 03:34 PM
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Originally posted by mperformance
Guys there is a specific NOS (brand) system for 12a rotaries. I plan to run a wet system. Cost is under $600 in summit. You will need many other accesories and thus making this mod a bit more expensive than everybody thinks. A must is having all the gauges and keeping up with the fuel demand. Better safe than sorry is what most folks think about when doing a nitrous install.


a 100hp is pretty safe and should put the car well on the 12s 1/4 with a stockported 12a engine.

Hope that helps.
You shouldn't use a shot bigger than half your hp, according to nitrous guidelines. That means, you shouldn't go over a 50 shot on a stock 12a (100hp). Second, there is no way a 100 shot will put a stock ported 12a in the 12's.
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Old Aug 30, 2002 | 03:35 PM
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Ask around guys...
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Old Aug 30, 2002 | 03:40 PM
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let me rephrase this...a properly installed WET fogger system with all the needed guages, accesories, fuel upgrades, etc will easily, safely and reliably put over 100hp extra on a STOCK PORT 12a...


remember you need not port the engine nor change the stock apex seals to run Nitrous on a rotary...

about the half horsepower guideline that applies mostly to stock piston engines and bad installs.

No need to argue on this guys...

12s is easy, common! don't be so negative
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Old Aug 30, 2002 | 03:50 PM
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100HP easy...12s not easy...you got to put the power to the ground and the watts link setup ain't the ticket for drag launches...
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Old Aug 30, 2002 | 03:59 PM
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Originally posted by Manntis

point taken. I'll shut up about products now
Did no one see the ??? Sheesh, it's getting so serious in here...I apologize if you were insulted, Manntis, I personally prefer 1stgen-specific product pitches here than in the "proper" Forum...
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Old Aug 30, 2002 | 04:08 PM
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no insult taken. mar3, I'm just trying to make sure you guys don't feel like I'm doing nothing but selling to ya
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Old Aug 30, 2002 | 04:16 PM
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Ok...What about this then?


Powerful Direct Port System For 4-Cylinder Engines
The NOS Pro Race Fogger® system represents the ultimate in state-of-the-art direct-port nitrous injection technology. Simply stated, it produces the largest horsepower gains of any single stage nitrous system available today and is designed for all-out competition-only import four cylinder and rotary engines. Several top-running "Pro" Imports have recorded 7-second clockings with this system.
The primary benefit of port injection is that fuel and nitrous are introduced into the intake tract of each cylinder individually and can be jetted to provide the optimum fuel/nitrous charge for each particular cylinder. And, because of the cool, dense "fog" like charge of atomized fuel and nitrous, it will produce optimum power. Some of the key components in this system are a Super Hi-Flo bottle valve, Pro Race solenoids (the highest flowing available) Y-shaped distribution blocks, stainless steel lines and your choice of Soft Plume 90° or Annular Discharge stainless steel nozzles. They are adjustable to produce power gains from 80 to well over 225 hp!

The Pro Race Fogger® system for Imports is offered in kit form, and it can also be installed on your manifold by the experts at NOS. Get maximum power with complete reliability from the No. 1 name in nitrous for over 20 years...NOS!

Carbureted Applications:
Use a fuel pump designed to operate between 5 and 10 psi with a flow rate of 0.1 (gph) gallons per hour per horsepower at 6 psi. Please note that most aftermarket pumps are rated under free flowing conditions. At 6 psi their flow rates may be greatly reduced. Check the manufacturer's specifications carefully or have the pump checked before you use it.

Fuel Injected Applications:
Use fuel pump(s) that flows at least 0.1 (gph) gallons per hour per horsepower at system pressure. For example at 42 psi flowing, an engine that makes 450 hp while the nitrous system is activated will require at least 45 gph at 42 psi flowing while going down the track without experiencing any pressure loss. Please note that most aftermarket pumps are rated under free flowing conditions. At system pressure their flow rates may be greatly reduced. Check the manufacturer's specifications carefully or have the pump checked before you use it.

Due to the high power levels and cylinder pressures produced by Pro Race Fogger systems, you must use high strength forged pistons, rods and crankshaft. Use of cylinder head and main studs will help insure reliability. A high quality racing ignition system with timing control must be used with these systems. Use of racing gas is recommended

NOTE: NOS sells and supports a full line of competition fuel system components.
.

~T.J.
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