now now now dont slam me here... i know most of you guys say Heck no for nitrous on these motors... but im rebuilding my motor now anyways... and my neighbor has a 1st gen rx-7 and its not turbo'd and hes running nitrous just a 100 shot.. he was like you should build it and run some good boost and thow a 25-50 shot on it for the strip and it be crazy lol.... that got me thinking not that I will be using nitrous but really why is nitrous looked soo down on for the twin turbo rotary motors??? what makes them fail exe... and if i were to want to run nitrous what precautions should one take?? just honest questions and please dont slam me for this... I did seach and didnt find anything but no nitrous and vin diesel and stuff lol im looking for real answers as to why.. mainly for my knowledge..\



Thanks Guys

That's not very much, I don't see how it would be a problem as long as you aren't leaning out the A/F somehow.

well i was just curious that everyone is sating it will kill your engine and stuff and not to do it. but i know up to a 50 shot isnt much at all.. I was just asking why everyone hates it soo much on rotary motors expecially on the fd's. does the instant cooling have an affect on the seals that cause them to crack or something.. I persoanlly dont see a 50 shot being a problem on a 13b rew, and i have considered it after a rebuild but id like to go with it unless someone can give me a good reason why its worse on a rotary motor rather than a piston motor? im not baggin on anyone im just looking for facts..

Nitrous properly tuned by a PROFESSIONAL WITH EXPERIENCE with NITROUS and ROTARIES

wich honestly there aren't that many of https://www.nopistons.com/forums/pub...IR#>/boink.gif is GREAT!!!



trying to just "bolt on" some "kit" without consulting a professional you WILL BLOW YOUR ENGINE do not get any type of KIT until consulting someone with the appropriate experience.



Now, theres not that many "rotary specialists" around out of those that are only a certain very small percentage are experienced to do nitrous on rotary engine so basically your looking for certain people normally drag racers of course.



my advice : contact Judge Ito if you dont know how you can just PM him on this forum. https://www.nopistons.com/forums/pub...IR#>/bigok.gif he can answer ALL you questions and then some.! https://www.nopistons.com/forums/pub...1047683473.gif

excellent thanks villan!!



well my brother used to work for holley in there nitrous department for r&d he now works for deere with me in our r&d department. hes very knowledgeable on nitrous and how it works exe.. when i talked to him he says hes positive it can be done and everything and was explaining it to me but when i said i had a rotary motor he was like ohh... lol he doesnt know much about them but he said on the average engine nitrous can and will be safe if you correctly use it. he did tell me not to go hogwild on it unless my motor is built.. he did say on a stock motor you can normally run up to half the rated horse the motor is putting out (there are some exceptions) i told him what about a 50 shot he said that is very minimal but still can destroy a engine very easily... basically he told me when i get it dyno tuned run a wet kit and make sure its rich to start with go with the correct jets get my car tuned for the turbo first then tune with nitrous.



anyways he told me tune rich and work down till it shows correctly on a wideband. that is very laymans he said but its the correct way to do it. he also said to buy into a purge kit and gauges they are worth a bundle on a nitrous motor.. so after talkin to him on it i feel pretty confident on running a 50 shot after my rebuild. but i will not jump right into it. I will PM the man and get a 2nd opnion and see what he has to say..



thanks guys... now i gotta rebuild my motor, ohh by the way i purchased a rotaryavation rebuild kit earlier i did a search and i see people have good luck with them so lets hope!! and lets hope i get my fd back on the road come springtime!!!

Well, sounds like you already now someone w/ ton of N2 experience..



My take on nitrous.. Its already hard to tune your car with turbo(s) and its going to be even harder with Nitrous. Its not just about adding it, you would need to change the map on your ECU to handle it. Like Villain has mentioned, it needs to be done by professionals who have experience running N2 on rotaries. Also, Good turbo(s) should be able to compensate whatever N2 set up your thinking of. Its just not easy as bolting up a kit... you might spend up to a grand getting it tuned....

so pretty much ditch the nitrous idea and just spend the money on going with a nice single 60-1 turbo or gt35 or something simular rather than the stock twins? it be safer and easier to tune in the long run. and not e all that much more money.

It can be done..



Wastegate is a concern, also EGTs. And a couple degrees retard on activation would be goot to start..



Keep in mind, a 50 HP shot will yield much more power on a turbo car.

I would... if I had to choose between N2 or nice single... But like I said, depend on what you want.. If you want a drag car, maybe N2, large single car, that you know when you are going to spray on a leveled drag strip.



If you want a good all around single car to drive and make few quick runs, good tuned single would be my choice..

Herb, i already bought a large m2 SMIC, and im scared if i go with a single the SMIC wont be that good. has anyone ran singles with the side mounts with success?? if i go single I will most likely keep the smic system and just run some sort of duct work to direct air into it or something... just tryin to get ducks in a row here.

ITs fine! Usually the singles will produce less heat than twins pushing same amounts of air.. Unless your planning to make 500+ HP or tracking your car (not drag), I wouldn't worry about it too much.

excellent, now i see a 60-1 or a 62-1 turbo in my future real soon..

If you have the money, I would go with Garret GT turbos.. 35R or some hybrid.



I've always liked the 35/40s.

I just want to tell you guys something.. so my brother calls me up and says hey get overhere, so I drive over and there is a FC in his driveway.. I get out and im checking out the car and my brother comes out and says, Hey about the nitrous question you were asking I made a few phone calls and stuff and there is a guy of a guy I knew lol sad huh? that is running nitrous on his RX7. now this is a FC not a FD but he popped the hood and it was a twin turbo fd motor under the hood.. with nitrous works power wing kit. the guy came out and his name was billy, (I mentioned this website to him too so hopefully he joins) but hes running 12psi of boost though a FMIC and a 75hp shot of nitrous... he has a power FC like mine and he has it dyno tuned. He took me for a ride in it and WHAAA its a fast car.. we were goin around 75-80 when he punched it with the spray and let me tell ya there wasnt much that was going to keep up with us lol... I was very impressed..



Anyways what I am getting at is that it is possible to run nitrous on these motors.. I asked him about tuning and he says he had the car dyno tuned before adding the nitrous and he contacted nitrous works and they helped him out. He says he pretty much started with the smallest jet and a wideband and worked up till he got to his goal while still keeping a good A/F ratio... lol i know it sounds easy, but I know its a pain in the arse but hey its totally possible and will be very tiem consuming for those who want nitrous like vin diesel!! :-)



HAPPY THANKSGIVING NOPISTONS!!!!!!!!!!!!!

well herb, I want to be able to produce with a single around 420hp at the wheels with only around 12-13psi, and has anyone been able to run like 20psi through one of these motors on a street car? consistantly? what normally breaks when you get in those upper HP levels?

LOL! Let me know who made 400+HP with 12-13lbs of boost on 13b...

No one here said you can't add nitrous.. I think all of us said its not an easy task and hard to tune. If you have a guy who's willing to help you with it and your heart is set on Nitrous, GO FOR IT!!

I wouldnt say that its hard to tune.

Maybe its not hard to you, but I say most people who own a turbo charged rotary with standalone feels uncomfortable about tuning.. Hence most people get Steve or BDC to get their car tuned. Even those guys feel unease about tuning nitrous or high boost cars. I don't even know where to start??

For the most part, a "wet" 50 shot would be independent from EMS/ECU. Other than a slight timing change.

An off the shelf 50 shot setup is already tunned so rich. There is a pretty big safety margin.





Not trying to argue, but I dont see it as a big deal if its all within reason.

herb i wasnt sayin its possible to make 400 with 12-13psi lol its just what id like to do lol... i know 16-17psi is more reasonable :-)

large streetport T-78 should be about 400 410 @10psi

Really?? 400-410 at the wheels?? Who made that?? And using ported 13b Rew??

pineappleracing (rob) told me he made a motor for a client in texas and with the T-78 large streetport they made 400 at the wheels @10psi.

tuned @rx7.com if im not mistaken

could have made more with 4inch exhaust

ahem, i believe i'm in the running for that...

ya i was hoping for 540ish all together with some ai at 25psi if nothing brakes.

Its must have bee big ass ports. LOL!

if not tuned right nitrous will blow your engine faster than anything else



even with my dual fogger system that i ran 23 fuel and 33 nitrous pills (jetted WAY rich)

i somehow blew my engine using it.

Although i dont think it was 100% up to snuff anyways, but it definately dropped a seal running nitrous.



Actually the AFR's were fine, i was using it the day before and i beat my friends Z06 4 out of 5 times

but the problem was when i got smart and tried to launch on it, and hit full throttle and shut off.



Started back up and it idled horrid

i knew what i did right away.



But i will say, nitrous works awesome, but you cannot have any room for error on it.



i will probobly spray a 50-100 shot when i get done rebuilding and run my holset h1e...

****... tell me how to make 400 rwhp with a t78 at 10 psi and i am game... i only make 330 at 10 psi with my t78 setup... it took me just over 20 psi to make 461....



I too have been contemplating a nitrous setup... probably something small like a 50 or 75 shot on top of 25 psi on my t78... the main reason i want to do this, is because i maxed out my fuel injectors, and really do not want to spend the money on a new fuel rail and injectors, then pay 700 dollars to get the car completely retuned by steve kan... BTW steve i believe runs a nitrous setup on his red car if i remember correctly... I would give gotham racing a call and check what he suggests to do for the setup..



also, if you are familiar with the NRS grey apex seals, they are proven to withstand the abuse of large nitrous shots and are virtually indistructable to anything other than a decent amount of detonation... but then again, they also run around 1200 dollars just for the seals...



Adam

send your motor to pineappleracing .







rob seemed to be pretty sure of that 400@ 10psi. large streetport 3mm seals. T-78 3" open exhaust haltech e6k 1000 primary 1600 secondary. https://www.nopistons.com/forums/pub...IR#>/blink.gif







we will see in about 2000 miles what it dynos.







if your pushing it with the fuel than nos is the wrong way to go.it needs more gas to mix with.so if your running lean it will make it......worse. https://www.nopistons.com/forums/pub...1047683664.gif



get meth and it should help out bringing your fuel needs down. also cool your intake air temps. and if you get nos you will have to retune. anything you do you will have to retune.







but pros suggestion would be better. https://www.nopistons.com/forums/pub...>/bigthumb.gif

I am still debating on this also just I am going to use all OEM mazda parts so I dont know if i can get away with a 50hp wet shot or not...

i said my injectors are getting maxed out, not my fuel system.... i have an aeromotive a1000 fuel pump... im pretty sure that will supply enough fuel for nitrous... a wet system uses fuel jets, it doesnt require injector...



as far as meth goes... im already running a dual stage water/meth setup....as far as retuning, the only changes that will be needed are in the timing map, but you can set your ecu to retard timing upon spraying of nitrous through its auxilary functions... the fuel is tuned by using different fuel solenoids.



as for needing a pros opinion... just because my post count is low on THIS forum, doesnt mean anything... i frequent the rx7club and have been a member of the rotary community for almost 4 years... Its just that i very rarely come on nopistons.... I also tune my car myself...but what the hell do i know....