I finished installing my ZEX wet nitrous kit yesterday! Install went smooth and I got the tank filled today. I haven't tested it out yet although everything works perfect. The Purge button is a great deal of fun and gets a lot of attention. Feel free to post any questions! More pics of the purge shot to come...

A special thanx to Charles R. Hill for all his guidance and support. I would have given up without his info! Couldn't have done it without ya!

Another special thank you to RotaryRasp for donating his time, garage, and tools.
Thank you both big time!
I will update with "butt dyno" results!


Enjoy...

more....

looks great, and hope it works well.
let us know your butt dyno results :D


I haven't tested it out yet although everything works perfect.
how so....?

Damn thats awsome, wonder how much you'll pull away from us on the streights. How long was it to install it?

what the HELL ................. It looks like a JUNGLE!!!!!!!!!

I wish you routed the hoses better.

Congrats.........

Main thing is it works.

I can always count on you Razz! :)

I will be going out for a run in a bit...

Damn still considering the nitrous............

Nice work, don't get a ticket.

Have you seen the night time purge kit you can get? Adds a light so when you purge it lights up the NOS spray.

haha sweet job dan. looking good. hope u like it. congrats

I guess a lot of people are turning to nos

Well, the butt dyno results are in.....They say:

WOOOOOHOOOOOOOOO

Deffinatley a noticable difference. Nothing crazy, but its deffinately there. Third gear pinned is the best because before u know it, your at 96 mph! I love it!
Its just enough "umph" to make up for whats missing whil stock, yet its not too crazy to where you're afraid to use it.

Could you put all the power to the wheels or did the ecu kick in the traction?

I thought about NOS until I saw the vid of the C5 Vette blow up from a NOS backfire. I think I'll save and do it right with FI.

The DSC/TC will activate even with the stock engine so, yes, you need to disable the DSC/TC so as to not wreck your rear brake pads.

Dan, you can loosen up the big hex coupler and rotate the gauge for better visibility without loosening up the feed coupler(that gauge looks familiar, BTW). Plus, Razz will fully understand why the lines could stand to be better organized once he gets his own system, won't he? Right now, the important thing is to make sure the system works properly. Next comes the contemplation and line re-routing for apperances. If you had another 55 h.p. waiting to be used which would be your priority? :)

I call third gear the "Time Machine" gear because that seems to be where everything really comes together, as Dan mentions.

Now if I can use Dan as a guinea pig and ask him to get the "N" flash to see what my problems are.....JK.

Not to diminish the dangers of a backfire but I had one recently, the reason is still unknown, and the only thing that happened was that the resonance box blew open. I fixed it with Super Glue, ordered a new one, and the engine runs fine. The nitrous is still giving me headaches but I am beginning to think it is the "N" flash messing with the nitrous.

CRH

I'd be very scared of nitrous after seeing this video (http://www.rx8club.com/showthread.php?t=57736&highlight=blown+mustang) of a mustang w/ Nitrous on a dyno.
What size shot are you running?

Dan and I are both running the 55 shots. That's all the Renesis will allow without ignition mods. That's why GReddy has limited their turbo to the same neighborhood. I am also running the exact same set up that I ran last year and back then it was flawless and cut 1.0-1.1 seconds off my e.t. The only thing I can reasonbly think of that has changed is going from the M to N flash.

I am almost at my wit's end and I am also bumming because the street scene right now is ripe for my taking and I can really use the cash.

Don't get all hung up on these nitrous backfire videos. Sure, there are risks to be taken with just about any mod but the real question is whether or not the cause of the backfires was user error or improper installation. Most of us on this forum have no clue how lucky we are to have each other because there are people who make livings knowing less than we do about cars. Quite sad, really.

CRH

CoooL! I never saw that video! But obviously something went wrong there. You could hear the nitrous shot was waaayyy too much. Especially on a dyno

I would venture a guess that the fuel solenoid wasn't hooked up or responding properly, for some reason, because of the immediacy of the explosion. If the ignition advance was not properly reduced, or the A/F/N ratios were incorrect, it would have knocked way before it would have blown. Mine blew in much the same way except that the resonance box contained much of the concussion wave and gave itself up. $90 later and I am back in business. There are days, however, that I wish I had a turbo kit instead.

CRH

I second that^

Hopefully,(knock on wood) I wont experience any major problems. And lets not forget it was a ford that blew up. Also, we dont know how much nitrous he used. It sounded lke a lot since you could clearly hear the "kshhhhhhhhht" before it blew

The DSC/TC will activate even with the stock engine so, yes, you need to disable the DSC/TC so as to not wreck your rear brake pads.



CRH

I believe the traction control works by retarding the timing.

I second that^

Hopefully,(knock on wood) I wont experience any major problems. And lets not forget it was a ford that blew up. Also, we dont know how much nitrous he used. It sounded lke a lot since you could clearly hear the "kshhhhhhhhht" before it blew

Isn't Mazda a Ford product now? If so, where does this leave us....:(

it SURE is kwescott, ford saved mazda's ass from bankruptcy, i grugedly am starting to try to not hate ford as much...

Ford owns part on paper only. The car is still designed and built in Japan. And Ford could NEVER master the rotory engine like mazda has

To my knowledge, the RX-8 was a project that Ford had nothing to do with. If I thought the RX-8 was full of stuff out of the Ford parts bin, I may not have bought it.

The Mustang and Mazda 6's are built on the same line in Flat Rock, MI at the Auto Alliance plant. I'd be willing to bet that they share several parts. I'll also tell you from first-hand experience that manufaturers use shelf parts as often as they can to reduce costs. DCX did that with the Crossfire using several Mercedes parts.

People at my work griped a bit about me buying a car built in Japan until I showed them where the wiring harnesses are typically built. When they saw several tags saying "Made in China" or "Made in Mexico" they backed off. The same goes for Harleys, too.

But we were talking about nitrous systems, weren't we.....

CRH

Ya the 6s is basically just uses a standard 3.0 V6 duratec, which happens to have a cam sproket which allows for poor mains variable valve timing. Other then that, its pretty much the same 3.0 duratec engine in everything else...which isn't bad, as the engine is pretty bad ass. (Forged crank, forged rods, hyperleutic pistons)

With the right modifications you can get that baby to redline to 8k, with peak power at 7600 rpm. Its no rotary excitment, but its good enough to make the noble M12 its home.

Ford owns part on paper only. The car is still designed and built in Japan. And Ford could NEVER master the rotory engine like mazda has

true, but mazda is using engines designed by ford/mazda now too. im sure ford will never take part in any rotary related things.

hey guys, how 'bout that ZEX wet nitrous install?

Just got my remote bottle opener! I will post pics as soon as I am done with the install

TADAAA! Remote opener is done! Now its time to go out to find some trouble :D

Thanks again Charles for the location suggestion! As you can see it worked well!

"there are people who make livings knowing less than we do about cars. Quite sad, really."

But then again those are the people you beat on the street for money, right Charles?

I had a guy approach me Saturday night with a Buick T-Type(Grand National) wanting to race me for $1K. I laughed and said "Hell no!". I figured anyone who comes up cold and offers a grand has a lot more going on than I do. Then I told him that I would take that bet, provided we race first in a 1/4 mile. Then we go double or nothing on a road course. He kept bitching as he walked away refusing to race under those conditions. I'll tell you guys what though-last year the RX-8 was laughed at for being slow. After my handful of races last year and even the few races I have had this year(crippled performance and all) the RX-8 is now developing a rather decent reputation. Now those same guys who mocked me are showing some props when I roll on the scene. I have overheard some flattering comments that last couple of times I showed up to race. I may be correct, after all, when I said that the RX-8 will be feared on the street once we start to sort out some serious mods.

I wouldn't venture to guess that anyone I have beaten has any sense regarding how cars work. I find it rather peculiar that in the "Motor City" there are very few people who work on their cars with anything other than voodoo science guiding them. You guys shoulda seen the crowd last Saturday. I really wish my car was in tip-top for that gathering. I have found myself one step closer to getting back to expected performance.

Dan, I figured that with the Mazdaspeed rear tower bar the tank would be hard to remove for refills. That's why I relocated mine from the rear shelf to the driver's rear corner of the trunk, as my avatar shows. I'm glad to see you straightened out the gauge, though. My students shouldn't come off half-assed in their installs. Didja clean up the routing under the hood yet? :p

CRH

looks like the best placement for it charles.

also, adictive, is that button in the center of your navi controls the remote bottle activation? and is that a new button or what(i dont have navi so im unfamiliar with the control panel)

Charles: Nope I havent worked under the hood. Honestly, It doesnt bother me. I am not one of those that opens my hood for all to see so it doesnt really matter. I am more into functionality than form :)

StealthFox: Thats the stock Navi control panel. Though it would be friggin awsome if it was for the nitrous :D

By the way, Charles, meet Razz. Razz, this is Charles. Good luck

Hey guys, first off don't bad mouth Ford too much, I had a 2.3L (same engine as the mazda 3 but without vvt) Ford Focus running a 50 shot that was very impressive. 2nd, I want to thank you guys for being the guinea pigs and having the "balls" to do this as I was looking to Nitrous as an option myself (something about the power ON DEMAND is quite addicting.) I have been looking into this for a while, but have decided to put it off until I had conducted more research. Though Nitrous will probably find its way onto my car in someway or another, I am very happy to see you guys succeeding with it first (I'd rather be the one to do it best then the one to do it first :D haha just kidding). Anyways, Just wanted to send my congrats out to you and to warn not to set it off too early or hold it on too late. Again congrats and thanks for being the guinea pigs on this talk to you all later.

I have probably used the nitrous in every way that we are told not to and the Renesis has held up fine. I have been having some problems since getting the N flash but I am a little closer to solving that problem and the next few days should tell me more.

Nobody is bashing Mazda(I think) and you are right that the 2.3 is a cool engine. Whether used in the early Pinto, SC Thunderbird, or Ranger, it was/is a pretty durable engine.

Tank placement: I had mine in the same spot except it was hanging from the rear shelf instead of on the floor like Dan has. I was saying that I only moved it when I installed my rear bar because I didn't think it would be convenient. Looks like I was wrong. Different strokes, I guess.

Razz likes to call me "Ed Roth".

CRH

I often use my trunk and placing the tank there takes waayyyyy too much space :) Besides, its only 2 bolts that hold the bar and removing it take less than a minute.

To each......his own :)

ahh, you have a third seat heater...cool, for the back seats? :)

hehe. I wish (though its not like anyone sits there for long. Car sickness is an issue when i drive:))

Charles: Nope I havent worked under the hood. Honestly, It doesnt bother me. I am not one of those that opens my hood for all to see so it doesnt really matter. I am more into functionality than form :)

StealthFox: Thats the stock Navi control panel. Though it would be friggin awsome if it was for the nitrous :D

By the way, Charles, meet Razz. Razz, this is Charles. Good luck

yeah that would be AWESOME...except for some rather unruly passengers testing your new button right under their arm on the highway at 65mph

I still have to arm the system and purge...No way anyone but me can reach it :)

you should get a red or blue ZEX purge light, that would look cool at night :D

you should get a red or blue ZEX purge light, that would look cool at night :D
Yah, that was what I was talking about..didn't realize Zex had one...very cool.

It boosts your style points, but with only one purge, its gonna be difficult for you to get above 4 stars...unless you get spinners, a split hood or scissor doors. :)

Its like 100 bucks for a stupid LED. Not worth it IMHO

Yah, that was what I was talking about..didn't realize Zex had one...very cool.

It boosts your style points, but with only one purge, its gonna be difficult for you to get above 4 stars...unless you get spinners, a split hood or scissor doors. :)

NFSU2 reference? :D :D

Its like 100 bucks for a stupid LED. Not worth it IMHO

wow they want a 100 bucks for the kit? you could make your own system for 20 bucks probably

not probably, easily. But I dont wanna, ok! god!

hehe

you know you're scheming a plan right now to make your rx8 just like the one in need for speed underground 2...

you know you're scheming a plan right now to make your rx8 just like the one in need for speed underground 2...

Yup, then all he would need is the Orion body kit and Level 3 hydraulics. :)

hell ya. Hydros are on the way baby!

Just finished my first bottle...Lots of fun! Getting a refill on Monday and then its back to the streets!

cool beans, how is activation done? and does your car jolt forward like in the fast and the furious and do you get pumped when you activate your nitrous?

Just go Full throttle and the system shoots. The car jolts but I dont get stuck to my seat and develop tunnel vision like Vin Diesel does :) Although u do learn to "Live your life a 1/4 mile at a time"

I don't mean to sound stupid but in spite of the problems I am having with the N flash and nitrous, on the rare occasions that I don't experience detonation I AM pinned back in my seat and the engine is just dying to tear the tires off. I wish I could resolve the issues I am having with my car because it feels great when I start from a 20 mph roll and smoke the tires through first and second gears when I floor it.

CRH

Really? Are you still running the 55 shot, or did u upgrade? BTW, What would happen (if anything) if I put the 75 shot nozzles? I dont want to push my luck, but how can you not!

i'll let you blow up your car adictive before i try it on mine :D if the 75 shot works well that would be awesome

how much are refills? Already done with the first bottle...sounds like it goes fast? How many "uses" in a bottle? Just one size bottle, or can you get a "Costco" version bottle?

My bottle (the one with the kit) is a 10 pound bottle. You can get larger bottles of course (like a scuba tank size). I have been using it non stop so it went out quick, especially since i have an addiction to the purge button :). Going rate around here for nitrous is 4.50 to 5 dollars a pound...so about 50 bucks a tank. But worth every penny!!

I am using the 55 shot. The thing with using nitrous is that the RX-8 only has so much "headroom" before the ignition timing becomes a hurdle that can only be surmounted with a piggyback controller. In totally stock trim, the RX may tolerate a 75 shot but I am not positive about that. With the M flash, I was able get an intake system and cat-removal exhaust system to work quite well with the 55 shot. If the intake and exhaust systems provided 25 h.p. worth of additional airflow then chances are there is enough headroom for a totally stock Renesis and a 75 shot to work together. I doubt that the intake and exhaust were worth more than 15 h.p., though. If that is more accurate then the 65 may work pretty well with a bone-stock RX-8. Even the factory clutch will be good with such a set-up.

Without excessive purging a 10 lb. bottle will last a good 20-25 runs.

CRH

Hmmmm....

Quick question, I know you dont have a purge kit (or do you) but I kinda based my assumption that the tank was empty when I purged and there was no "cloud". It hissed really loud as usual but no vapor. Am I correct in assuming the tank is near empty?

the purge is actually nothing but a valve that will always shoot out nitrous as long as there is some left. I know how addictive it can be, and yes, when it won't purge it means its dead :'(

gotcha

Nitrous works best in vapor form(molecular density matters as much as pressure), as opposed to purely gaseous form like you describe, but the best way to monitor your system is to keep a note as to when the system seems to lose its punch and then note the ambient temp and tank pressure. In my system the threshhold presuure is 600 psi@70 degrees F. 70+/- is usually the temp at which the tank is filled so that's why I use that number. I also factor in that for every change in ambient temp of 10 degrees results in a tank pressure change of 100 psi. 950@70=850@60, and so on. Same with warmer temps. A fresh refill at 70 degrees usually results in close to 950 psi.

CRH

Wow...950 psi! Any idea how close that is to the psi in a tank filled with propane, because those make a large explosion when blown and there are some regulations on tank specs. Does the NOS industry use the same specs for their tanks, do they just use the same tanks, and are the pressures the same that would ensure safety for the car and its passengers that may be sitting just inches away from the tanks.

Damn, that could make for a huge explosion. A blown tire is only usually 35-44 psi, a big rig tire makes for quite an explosion as well (not sure what they run their tires at though). 950 psi...I guess the explosion in Fast and Furious wasn't just movie magic.

Nitrous tanks have a burst point 3,000 psi. They also have a safety valve that blows at 1,300 psi. A rather large margin for safety's sake.

CRH

That is good to know. Offers a greater sense of safety. I'm wondering, when I go get my propane tank filled at the local U-Haul, they always safety check the valve and the threads on the tanks exit...to ensure that there will be no leaks when the tank is reinstalled on the Barbcue...is this something that is checked upon getting refills?

I am pretty sure that those who refill the tanks look at the threads before connecting to the fill coupler. The safety valve is a membrane that if it were to blow you will know it because all of the pressure bleeds off and it is a one-use-only kinda deal. Replacement blow-off valves are about $20. Just as an example, using the math stated previous we would have to see ambient temps of about 270 degrees before the tank will blow. I think I had that safety valve burst rating wrong. It might be that the burst disc blows off at 3K but the tank is able to handle more than that. Whatever it is I remember calculating thet we would need to see ambient temps above 270F. after a fresh fill in order to see the valve blow.

Whatever, the systems are safe when used properly.

CRH

Then must have been a bunch a movie magic..similar to the cars jumping off a cliff and blowing up just as the driver was able to leap out. Ahhhh, movies, aren't they great, they put all these worries in my head like not wanting to swim at the beach for fear of killer sharks...or eating at Wendy's in fear of biting into a finger....

Dont be so cautious! Enjoy life! If things blow up, enjoy it and remember the details so u can tell EVERYONE! :)

Nitrous tanks have a burst point 3,000 psi. They also have a safety valve that blows at 1,300 psi. A rather large margin for safety's sake.

CRH

it doesn't matter if its 10,000 psi, if you have a safety valve failure, you have a safety valve failure and it wont matter if its burst point is 1,400 psi or 10,000 psi, when the pressure just keeps on rising eventually the tank will explode

BOOM!!! hehe

yeah...

how much was your 55 kit RX?

Please explain how there would be a safety valve failure as they are currently designed and used by the industry. Please also explain how nitrous oxide could explode.

CRH

The "explosion" wouldnt b one like u think with fire and smoke. Just a lot of shrapnel.

But lets not get into it Charles :). I dont feel like explaining it to everyone :D:D

I had a 150 psi air compressor tank explode on me so I know what a nitrous tank explosion might look like. I didn't assume there would be "fire and smoke". In addition, the concussion wave blew out the back wall to the garage and it sounded like a shotgun blast. Stealthfox's illustration is correct assuming the safety valve hasn't the ability to bleed the pressure quickly enough to prevent tank destruction. However, try taking off the chrome cap that covers the Zex safety valve while the tank is full and you'll see just how fast 950 psi can dissipate.

Dan, we don't have to explain anything to anyone. We can suggest they search the Web for information on nitrous oxide like the we did and the issue will die right here. In summary, nitrous oxide is to engines what vitamins are to the human body. Catalysts.

CRH

Please explain how there would be a safety valve failure as they are currently designed and used by the industry. Please also explain how nitrous oxide could explode.

CRH

im not going to dig up videos for you but there have been more than a couple nitrous failures(all due to user-related failure and maybe only 1 or 2 to manufacturer defect) where the engine bay just gets wrecked. heck i even think theres a recent video of a mustang cobra blowing up here on the forums in the past few weeks

those dont involve the tanks exploding

that *one* didn't involve tanks exploding but its been documented and theres been plenty of pictures to back it up as well. of course this was because the user was an idiot and is posting it on the net and making themselves just look dumber and trying to sue the company on top of that

I would be interested in seeing these documented tanks that supposedly exploded. Might they have been in a dentist's office? The interesting thing is that of all the uses that nitrous oxide has seen, especially in the Pro Mod class in NHRA, there have been manifold backfires but I don't think we have yet seen an actual tank explode. With the mandated blow-down tubes directing the excess pressure away from any flammable material it is unlikely that anything other than a quick relief of pressure would occur. Nitrous, by itself, is not flammable. That's why there is a green diamond on the tank and not a red one. Additionally, my own car suffered a manifold backfire and my resonance box was damaged but nothing else. If I am to understand the discussion here, it is really a matter of whether or not Dan, myself, and others are confident and feeling safe in using our nitrous systems. I know the precise reason for my backfire so I still feel comfortable using it. Turbos are cool but it seems that when people see I have nitrous on my RX-8 they begin to ask questions and I end up spending quite a bit of time de-mystifying the concept and its use.

CRH

hmm, i wonder how i could engineer a SFR/ZEX powered car...

Meaning....?

CRH

I would be interested in seeing these documented tanks that supposedly exploded. Might they have been in a dentist's office? The interesting thing is that of all the uses that nitrous oxide has seen, especially in the Pro Mod class in NHRA, there have been manifold backfires but I don't think we have yet seen an actual tank explode. With the mandated blow-down tubes directing the excess pressure away from any flammable material it is unlikely that anything other than a quick relief of pressure would occur. Nitrous, by itself, is not flammable. That's why there is a green diamond on the tank and not a red one. Additionally, my own car suffered a manifold backfire and my resonance box was damaged but nothing else. If I am to understand the discussion here, it is really a matter of whether or not Dan, myself, and others are confident and feeling safe in using our nitrous systems. I know the precise reason for my backfire so I still feel comfortable using it. Turbos are cool but it seems that when people see I have nitrous on my RX-8 they begin to ask questions and I end up spending quite a bit of time de-mystifying the concept and its use.

CRH

Nissan Maxima nitrous bottle explosion (http://www.saturnspeed.com/nitrousexplosion.htm)

meaning turbo rx8 with a small nitrous shot on tap

Thanks, Red. In many ways the editorial supports much of what I have calculated about the use of nitrous. First, that a full tank's temp would have to exceed 270 degrees F in order to explode. My guess by looking at those photos is that the user bypassed the safety valve and just plugged it. The membrane that constitutes the valve is very tamper-proof. Second, that nitrous oxide is rather safe when used as directed. One huge mistake that Maxima owner made was in not wiring the heater to a circuit controlled by the ignition switch. Another mistake was in heating up a tank that probably did not need it. People misuse heaters all the time.

I appreciate the fact that you, and StealthFox, have kept us on top of the potential dangers of nitrous oxide use. I wouldn't want people to become too casual in using it and forget that with power, even horsepower, comes a level of responsibility. Perhaps my dialogue on the issue was becoming a bit irresponsible and I would hate for someone to get hurt due to any misunderstanding.

Don't those photos look like something off of Rotten.com?

Thanks, again, for your input and contributions. What else do we discuss, now?

CRH

Stealth, that idea has been pondered and the hardware has been purchased by another member called Horse. The thing is that with the factory PCM there is a threshhold of about a 55-60 h.p. boost from nitrous or a turbo before ignition curve adjustments are necessary. The factory PCM also allows for a cat-removal midpipe and aftermarket intake, too, along with that 55-60 h.p. Once we get into modifying the timing the only hurdle is the seal's ability to hold the housing pressure. The practical use of nitrous with a turbo is usually to spool up an otherwise oversized turbo. I can't see why anybody with a properly sized turbo for street use would need nitrous. The gain made by using nitrous could also be made by adding a few more psi.

Other than show use, am I overlooking something?

CRH

Just saw the setup in person, definitely sounded nice... not sure about the ride, maybe the ones that got a chance tonight at the Tustin meet can chime in on how the car rides now. :) Crazy setup too... wires going all over the place. It's impressive to say the least.

Those are hoses :)

Well ya know what I meant... Hoses, wires, gadgets, doohickeys... :P I'm too scared to even deal with the wiring/engine work in this car yet. It's not like it's a Civic where you can take everything apart and put it back together like a Lego set. But nice job, it looked fine, I think the EVO guys were yelling at you to stop showing off.

Yup, they definatley were intrigued by the idea of a "worthy" 8. They seem like they like the styling of our cars, but don't consider an 8 worthy enough to race. I would probably feel the same way...but now an 8 with Nos, that may be interesting.....

In my area the import crowd, as small as it may be, are starting to sit up and take notice of the fact that the RX-8 has some decent mods available and that with the right ones, these cars are well quick enough to take out most street-driven/daily-driven cars with street tires. The scene as portayed in magazines is far different from the world where the cars are the primary transportation for their owners. In that sense, the RX-8 will prove itself as a much more flexible and practical car than most would think. Look at it this way; the only thing stopping any particular car from being the baddest on the block is that car's mechanical ability to produce certain power levels and the ability to get that power to the ground. As it stands, the RX-8 is already much more capable, mechanically speaking, than 99% of the people out there previously thought. The next 18 months will be quite telling.

BTW, the Renesis engine and RX-8 drivetrain are nowhere near as complicated as one might think. I recently had my whole upper half of the engine removed, inspected, and replaced in 90 minutes with no step-by-step manual available to me and that was the first time I had done it. A few bolts, a couple clamps, some hoses and connectors and it was all done. If you systematize your approach it simplifies the reassembly.

Take my word for it: If you get rid of your cat, add some nitrous and don't be afraid to rev it to 9,500 rpm's not only will you win some races you'll scare the Hell out of those with piston engines. There are those who think because I shoot flames when I shift that I run 11's. If they wanna be stupid I'm not gonna change their minds. :p There is definitely a way to develop a solid reputation for yourself on the street while taking the fewest chances possible and with the right tools you'll also be able to back that reputation up with reality.

CRH

Ha! I didnt know they were talking crap. Ah well, they were just jelouse. I wish I had the chance to race one of em and see what happens. I had a good time though. Good to see so many car enthusiasts.

PS: I told you all I love that purge button! :D:D:D

ok guys, the tanks will not explode as a direct result of nitrous failure, now if you have a fire in your car it will explode... just like if you had a freaking can of hairspray it would explode! alright, people, as long as nitrous is used right.... hell even if its not, THE BOTTLES WILL NOT EXPLODE!!!! And please... for the love of god.. buddah... jesus.... who ever just please dont call it nos... nos is a company... its short for nitrous oxide systems... just call it nitrous, if you are too damn lazy to type that call it n2o. anyways, nitrous is good... nitrous is safe WHEN USED PROPERLY and when used in conjunction with balloons, it can also be interesting (not that i know from personal experience or nothin)
That is all!

I wouldn't go huffin' the stuff we put in our tanks, though.

CRH

In my area the import crowd, as small as it may be, are starting to sit up and take notice of the fact that the RX-8 has some decent mods available and that with the right ones, these cars are well quick enough to take out most street-driven/daily-driven cars with street tires. The scene as portayed in magazines is far different from the world where the cars are the primary transportation for their owners. In that sense, the RX-8 will prove itself as a much more flexible and practical car than most would think. Look at it this way; the only thing stopping any particular car from being the baddest on the block is that car's mechanical ability to produce certain power levels and the ability to get that power to the ground. As it stands, the RX-8 is already much more capable, mechanically speaking, than 99% of the people out there previously thought. The next 18 months will be quite telling.

BTW, the Renesis engine and RX-8 drivetrain are nowhere near as complicated as one might think. I recently had my whole upper half of the engine removed, inspected, and replaced in 90 minutes with no step-by-step manual available to me and that was the first time I had done it. A few bolts, a couple clamps, some hoses and connectors and it was all done. If you systematize your approach it simplifies the reassembly.

Take my word for it: If you get rid of your cat, add some nitrous and don't be afraid to rev it to 9,500 rpm's not only will you win some races you'll scare the Hell out of those with piston engines. There are those who think because I shoot flames when I shift that I run 11's. If they wanna be stupid I'm not gonna change their minds. :p There is definitely a way to develop a solid reputation for yourself on the street while taking the fewest chances possible and with the right tools you'll also be able to back that reputation up with reality.

CRH

while its cool and all to remove your cat and use stock slightly rich timing to shoot fire, its unsafe, and removing the catalytic converter is illegal, and california cops are very stringent in illegal modifications to cars. id rather use a super hi flo cat and lose 10hp over the no cat MP and no have to worry about my 32,000 dollar car being impounded.

also dont count on me disasembling my RENESIS and invalidating my warranty anytime soon and revving to 9500rpm. :rolleyes:

and also, bumping up PSI is not an easy task with the RENESIS. they can take a maximum of about 11psi, most kits are nearing that and you will have to replace quite a few components to bump it up "a few" id rather keep mine at very meager 8psi(half bar) and have it a reliable turbo system that puts out 105hp i can daily drive, and have another 55 on tap(plus nawz is soo madd tyte yo)

also i support your idea in changing the 8's reputation, i plan on doing a port and polish job, full bolt ons, turbo, lightweight drivetrain pieces, ECU tuning, and if it can work, nitrous to really go out and set some things straight about the RX-8 and renesis

in addition, use of nitrous oxide shots over 75psi will be viable in the future once proper ignition timing is done and housing pressure seals are taken care of, correct?

either way i would be intrested in having that stuff done to put a 55 or 75 at most shot on my turbo car for show and for the security of "backup boost"

yeah huffin automotive n20 bad :p

With all of the warranty-voiding experimentation I have done, here's what I have discovered;

The Renesis is able to handle far more abuse than previous versions of the rotary. It also seems to handle more abuse than I can and the rev-limiter is conservatively set at 9,750 rpm's.

As to nitrous oxide-the N flash seems to prefer the factory intake and a max of the 55 shot. When I had the M flash I was able to use a Rotary Extreme intake with a Blitz SUS filter and it worked pretty darn good. The N is a little more sensitive so it won't let me use the R.E. with nitrous. Besides, there isn't much(if anything) gained witrh aftermarket intakes. The Racing Beat may be an exception, even with nitrous, but it will be a while before I get one. Jeff Abrams has said that the N flash richens up the A/F and slightly advances the timing(if I understood him correctly) and that may narrow the "window" that allows nitrous or turbo use without major PCM work.

It should be noted that whether using nitrous oxide or the GReddy turbo kit, both mods are limited to 55-60 h.p. boosts without doing major tuning to the A/F ratios and ignition curve. The GReddy kit doesn't modify the ignition curve according to Abrams. It only richens up the mixture a bit by manipulating the engine temp. signal sent to the PCM.

As far as what the Renesis will mechanically handle for boost levels, I have much confidence that levels in the area of 100-125 h.p. can be achieved with PCM tuning. Whether turbo, nitrous, or a combination of the two, that's a level I am comfortable predicting.

The flames I get are normal for a rotary to spew when there is no cat to snuff them out. I removed my cat 35,000 miles ago and have never had a problem. I have also driven to Atlanta, raced for two days in rpm ranges between 7K and 9.5K all day, and driven the car back. It ran well the whole time.

This Summer I will be installing an E-Manage and all the necessary hardware with the hopes of preparing the car for a 100-125 shot of nitrous.

CRH

good see see you're information, i like how all of your stuff is solid, stated by experience and road testing. you're a pioneer of high power RENESIS :D

Thanks, Stealth. Sometimes I wish I had done it the way many others have and just installed a turbo kit(although those guys and I are sharing problems re: the N flash). My friend with the Evo8 reminds me that I am just getting quite used to the current power of the car and am getting bored with it. One of the benefits of using the G-Tech, regardless of what one might think of it's accuracy, is that it removes the subjectivity of the whole process. Just 'cause I am no longer surprised by the power of the car doesn't mean it is slower(necessarily). I previously thought that the N flash cut a couple tenths off the e.t. but I am now thinking I was wrong about that and may have actually lost a bit of power in exchange for a smoother power curve. I think for purposes of tuning that it is better to have a flatter power curve from the factory and then improve on that, rather than sit on a dyno all day trying to fill in holes and gaps.

CRH