Anyone know how much nitrous a 84 se can handle? I was thinking of using a turbo but the car does not have one yet. Would I be better off to leave the turbo off or would the combo last on the engine? I want to try using the 150hp kit(fogger kit... a wet kit). Other than th suggestion of ceramic apex seals what else would a guy need to do to the internals?

 

NAAAAAAAWWWWWWSSSSS you said the deemed evil word! It's called Nitrous Oxide.... NOS is the brand name

Jeff

 

yeah go ahead and do the 150 shot on your 130hp motor, it will be wicked fast, as long as you shift mad quick. after you blow the hell out of that motor just get a turbo 13b and throw it in there.

 

get the RB exhaust system and pick up 20-25 HP first... it's a bolt-on with no danger of blowing your engine

 

N.O.S does not stand for NAAAAAAAAAWWWWWWWWS, it is the abreviation for Nitrous Oxcide Systems.

 

...which is the brand name.

 

Notice the dots in between the letters.... Obviously he knows it is Nitrous Oxide Systems. Damn I hate that naws sound!

 

I think the real answer you are looking for can be found here

Don't fear the juice. Its OK to be different.

 

say it together now everyone....

N.O.S. is a brand name, Nitrous is the actual Chemical composition that we all know and some love/hate

Jeff

 

(...er... Nitrous Oxide, not just Nitrous )

 

meh, I was abbreviating

 

hehehe 'sokay, we're all being ultrapicky...

But anyhow, try the exhaust upgrade before you risk your engine. If you still havea need for more, then go to turbocharging and/or N2O

 

do a search so you dont waste ours and your time.

 

Short answer...stick w/100 to get street equality but 75 if you want the engine to last for 70,000+ miles...wear on parts and seals doesn't go away just 'cuz you didn't grenade the engine in 20,000.....

 

thanks for the input its apreaciated . there just doesnt seem to be much for info out there on this at least not that i can find

 

N2O sucks!!! i experimented with it with poor results..In my opinion rotary engines dont like lots of N2O... you have to constantly refil the pesky bottle that weighs 24 pounds that takes up valueable space , you have to maintain a constant bottle pressure for it to work properly , the solinoids need constant maitinence .... the stuff costs $2.50 and up per pound..... forget it !!!

 

Oviously, you haven't used it much. Post a timeslip. We have a 6.00 second 1/8 mile car (800 shot) running consistently for money that just won this past weekends runs, and a 6 second 1/4 mile car (1200 shot) that runs at the SpeedWorld Finals every year. They are both very consistent and very fast. Both are N2O fed. You still think that that sucks? Do you have a video of your dyno run? I'd like to see you put down 680rwhp off a 12A.

 

Once again, this is a 1st gen RX-7 forum, not a drag racing forum. Maybe 680 was voicing his opinion of N2O for street?

I don't have timeslips as I drive my car on the street, as it was intended. Does that make my opinion less valid than those who view FBs as drag race toys?

 

Ok, my 7 is for the street, not a drag race car. I still use N2O very effectively. It works fine on the street also.
If you saw my car, you would know it's not a drag car.

He simply stated it sucked, did not say for the street, or for race, just that it sucked.

N2O is very similar to a turbo or supercharger. Do those suck also?

 

you stated you use N2O for the street....what hp are you using for your daily driven car.... thats using N2O???what kind of gas do you use???

 

these 6 sec. cars your talking about????are they rotaries??? i dont think so! i said N2O dosnt work good on rotaries, not piston engines!!!the fastest rotary i have ever seen using N2O was a Purtorican car called Bam- Bam.....it was a chassis car,, miata and with a P-port and N2O it barely ran in the 9 's!!!

 

Pump gas - 93 octane

Just running a little 100 shot in my SE, another one of the guys is running 150 in his SE. Oh yeah, he's Puerto Rican.

My point is that it works fine, just like a turbo or supercharger. It's just a power adder. If you know how to control your jet size and bottle pressure, it will not do any more damage than any other power adder. I'm willing to bet that you didn't have a bottle heater. If yoiu had, you'd probably like it a lot more. Of course, if you're already at 680rwhp, you probably can't push that motor much farther anyway.

 

Of course they aren't rotaries - they are full drag cars. Not street legal. Both engines use the same combustion principles. Both are internal combustion engines. Down at Moroso, "El General" beat Craig Paisley's Supra in early 2000 - the video is foating around on the net. I took the video. It ran a 8.3 to Paisley's 8.5 in the finals. It runs turbo and N20 on a p-port 13BT. There were also quite a few Puerto Rican's running 9's on just N2O and p-port. What are you running? Probably the same.

 

100 shot??? dont think so... not on pump gas!!ive done it and guess what the motor blew up! any time you run anything larger than a 75 shot on a stock small displacement engine you HAVE to run higher octane fuel!!!your proabably not running a "true" 100 shot.... wich solinoids are you useing???how did you run your fuel system? how many foggers are you useing?? what are your jet sizes?? have you ever "FLOWED" your system??these are all determining factors in estimating the hp level your squeezing

 

You think that a 100 shot is big? :-)
One of the guys here runs a 150 shot on his carbed GSL-SE - 13.3 all day long - on 87 octane. It all in how you set it up.

I suppose that I should tell you that neither my fuel system or engine is stock though. On a stock motor with stock fuel system, I would agree with you that the reasonable safe limit would be around a 75 shot.

I can't help that your motor blew up. Over here, we have been running N2O for a long time. We still killl a few motors, but it's just as dependable as a turbo or supercharger - the downside is that you do have to fill up - unlike either of the others.

Got a video of your dyno run around? I'm interested in seeing that.