How big of a shot is recomended for a nearly stoc rx-7..?

 

NONE - Nitros is not recomended for Rotaries

 

This is funny. Where some people get their info is beyond me, but anyhow this is in the wrong section.

 

If you don't run at least a 200 shot then you are wasting your time and money buying one. These motors are indestructible!

Second thought, maybe not..... Mine blew up.....

 

Blowing up with a 200 shot??? I want a vid

 

Me too since that did not happen. I was talking about how indestructable these motors are but mine blew up without any nitrous. So I bet a 200 shot would do wonders.

 

I think it's Judge Ito who knows a lot about rotaries and nitrous, try to contact him.
If you do it properly, then it can work fantastic. Our engines have strong stock internals actually. If you do it wrong then of course it will blow....

 

yes when you get it you will have to get a "wet" system unless you have a stand alone ECU and you will want to get some dyno time in before you use it. get it runing as rich as you can when tunning around 8-9:1 Fuel/air ratio a wet system will give you what you want with the least mods. Since this injects both fuel and N2O at the same time instead of just giving more fuel presure.

The thing most people don't realize is that N2O isn't flamable (F&F would have you belive otherwise) it is a oxidizer and a gas charge form of intercooling. It only alows you to cram more oxygen (everyones friend... well not all the time) but with more air you need more fuel and with N2O you need a pretty sudden surge of it. The stock ECU in the FD is smart if you don't change anything but if you make any mods to it, it's as dumb as a post. buy a wet system that comes with different jets (40-120Hp) those very the amount of N2O injected. do alot of fuel mods to increase pressrue and volume of fuel and make sure with N2O you should also retard the ignition while tunning for safty cause one hard ping and the famous whoosh and wankle soup.

 

This is the thread you want.... Really good nitrous info by scathcart!

-enjoy

https://www.rx7club.com/forum/showth...=Nitrous+Oxide

 

Lets find out. I've got a bottle, a solenoid and jets...

Whos got a motor?

 

If you wanna run the n20 on my car that would be fine!

 

I believe the O in N20 is oxygen and you better believe oxygen is flammable. In the combustion process under extreme heat and pressure the oxygen atoms are released that is how N20 makes it's power because you are injection oxygen. The nitrogen is there to help slow the burning of the oxygen, as injection pure oxygen would burn to rapidly and cause an explosion. The cooling effect of N20 is a by-product of going from a liquid to gas.

N20 can be used on any car as long as you have the fuel to back it up and the internals to handle the additional power. Addition N20 is similar to turning up the boost you are adding more air (oxygen) so you need more fuel.

N20 gets its bad name the same way the rx7 does, people messing around with it when they don’t know what they are doing.

mark

 

Oxidizer is flammable!??!

 

Wow! Couldn't have said it better myself. You hit the nail right on the head!!!

 

Nitrous Oxide is an oxidizer - it is not flamable of itself.

 

N2O is combustible as most oxidizers are. it's is not flammable onto itself. Most are quick to say that it's bad news but then they won't hessitate to turn up the boost. Goes to show the ignorance on the subject.

 

by the way if your engine is in good shape a small 50 shot, could give you heaps of power for a nominal fee. i would adress the weaker points in your car first.

 

I found some good info on the holly n20 faq. This must be where I read it the first time



http://www.holley.com/HiOctn/TechSer.../NOSTech5.html

Q: How does nitrous work?
A: Nitrous oxide is made up of 2 parts nitrogen and one part oxygen (36% oxygen by weight). During the combustion process in an engine, at about 572 degrees F, nitrous breaks down and releases oxygen. This extra oxygen creates additional power by allowing more fuel to be burned. Nitrogen acts to buffer, or dampen the increased cylinder pressures helping to control the combustion process. Nitrous also has a tremendous "intercooling" effect by reducing intake charge temperatures by 60 to 75 degrees F.

Q: Is nitrous oxide flammable?
A: No. Nitrous Oxide by itself is non-flammable. However, the oxygen present in nitrous oxide causes combustion of fuel to take place more rapidly.

 

That is 100% right.

N2O is great if tuned PROPERLY. ( Meaning - Give it enough fuel to burn ) People have been playing with N2O for quite a while now so most of the trial and error is gone. ( For standard systems ) ( Foggers and 100 - 150 direct injection units ). A rotary needs to run richer than a standard piston motor so just set up the standard system richer and then lean out as necessary.

There are quite a few vendors that sell kits. Talk to them and do research before you invest.

 

Ran 125 shot on my N/A pulled 14.2 @96 on street tires spinning right through second.

I RAN THIS DRY

Probbally not the best idea for everyone but the 50 shot was a nice little boost. I just got nitrous happy. And yes my motor still runs fine.

 

Nitrous does not blow engines. Running way to lean because you don't know what your doing blows engines.

NITROUS IS GOOD FOR ANY CAR!!!!!!!!!