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!

 

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

 

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