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Discussion Starter · #1 · (Edited)
OK all you NOS guys out there, Tell me how well your systems work. I've got an older NOS system that I was intending on using after I install my BBK but now after watching the Boss Noss videos I'm not sure.
How consistant is your NOS pressures? Say on a 70-80 degree day, does the bottle pressure fluctuate a few hundred psi? Is this really effecting the A/F ratio? What about after making a run on NOS. Can you go right back and do another run? or is your pressure down at this point? How long does it take to build pressure back up?
I know I have a lot of questions but it's just that the BOSS NOSS system sounds REALLY good and they make the older system sound like a bomb waiting to explode. Are they OVER exaggerating? Someone fill me in now.
 

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Very good post I am also thinking about changing over to their system haven't had any problems but it would be nice to be able to keep a more consistent AF ratio. Mine is tuned for 850 to 900 and you can really tell that its going rich when it drops to around 300.
 

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did you watch the vid on truegrips thread,no preasure fluctuate at all back to back runs til its empty .Ive had boss system a few years now just went to the new system I thought the old system was good this is twice as good
 

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I can't speak for the Boss Noss system, but I am a cold fusion nitrous systems dealer.
Bottle pressure fluctuation doesn't affect the Cold Fusion System when you use a regulator. I've had really good results.

Cold Fusion Nitrous: Motorcycle Wet Kits with Accessories


Read about part number CFN-1404, it is the next to last item on the page. I don't see why that wouldn't work on any wet kit, like the NOS system you have.

Kev
 

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I run a Boss Noss system. You can push the button on every run until the bottle is empty. It will heat the motor up a little. :D

I made 3 runs up this 600ft hill with the button pushed pretty much all the way.
 

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rpm are you on the new system or old ??
 

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Arg :mad: i hate that video can't wait for the rematch with my bottle and smaller jockey :lol:
 

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Discussion Starter · #9 ·
Very good post I am also thinking about changing over to their system haven't had any problems but it would be nice to be able to keep a more consistent AF ratio. Mine is tuned for 850 to 900 and you can really tell that its going rich when it drops to around 300.

What if your bottle heats up? Does your pressure get real high and cause a lean condition?
 

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Discussion Starter · #10 ·
did you watch the vid on truegrips thread,no preasure fluctuate at all back to back runs til its empty .Ive had boss system a few years now just went to the new system I thought the old system was good this is twice as good
Yeah I did watch them. That's what got me asking all the questions about how well the old systems really work. The BOSS NOSS system sounds like the best thing to ever happen. I was just wondering if the old systems are really as hard to deal with as they were saying.
 

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What if your bottle heats up? Does your pressure get real high and cause a lean condition?
No, the Smart Box keeps the pressure constant.

My A/F Meter reads steady from Full bottle to Empty.
 

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Discussion Starter · #12 ·
What if your bottle heats up? Does your pressure get real high and cause a lean condition?
No, the Smart Box keeps the pressure constant.

My A/F Meter reads steady from Full bottle to Empty.

Actually, I am asking about a regular old fashion wet system. Are THEY really a pain to run like the video says? With all the pressure problems and rich and lean conditions?
 

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Oops, My Bad. :blush:
 

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If you get much over 900 then your gonna have more problems than going lean. I think the rupture disk are at like 1100-1200.
 

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I can't speak for the Boss Noss system, but I am a cold fusion nitrous systems dealer.
Bottle pressure fluctuation doesn't affect the Cold Fusion System when you use a regulator. I've had really good results.

Cold Fusion Nitrous: Motorcycle Wet Kits with Accessories


Read about part number CFN-1404, it is the next to last item on the page. I don't see why that wouldn't work on any wet kit, like the NOS system you have.

Kev
let me see if this makes sense...... Could
I get one of those CFN-1404 and set it at say 300 psi then adjust my fuel jets to be the right size for my hp shot and AF ratio. And I would be good from 300psi all the way to X bottle pressure without the system ever seeing more than 300 with same shot and AF ratio and anything below that would start to make me go rich?!?!?
 

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No. The regulator is adjustable from 600 to 1100 PSI. If you are trying to run 300psi bottle pressure you shouldn't go with a wet kit. I don't know of any wet kits that will operate properly on that low of pressure. Maybe the boss noss can run that low, not sure I don't know much about it. I run 900 to 1000 on every quad/bike/car that I setup. But the people I set nitrous up for are usually pretty serious drag racers and when the bottle is 3/4 empty it is changed out to a new full one to make sure we are getting liquid N20 and not the gas which will definately cause you some problems.
 

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put a regulater on and some gauges,fuel preassure guage and make sure you are 900+ on the bottle and set it up on the dyno get the A/F right and should be fine,like Kev said you cant run that low on a standard wet kit it will not work properly,and if you are looking for something to run low preassure and have a easy install would be Boondocker,very easy to install and setup
 

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Discussion Starter · #18 ·
Lets say that you are set up for 900psi at the bottle and your A/F ratio is dead on. Everything is perfect at the time of tuning. NOW... you are out on the dunes, the temp. is rising and your bottle pressure is increasing (they say it does anyway). How much difference is this going to make with your A/F? Is it a constant battle to keep it safe. How much does bottle pressure really change with temp. change? And what about spraying back to back in drags? Will the pressure be dropped too much on the first run to run a second one? If so, how long does it take to get the pressure back up? Maybe these aren't really even big issues, I don't know, It's just that the BOSS NOSS video makes it look like it would be. Does this make sense to anyone? I'm getting lost.
 

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No. The regulator is adjustable from 600 to 1100 PSI. If you are trying to run 300psi bottle pressure you shouldn't go with a wet kit. I don't know of any wet kits that will operate properly on that low of pressure. Maybe the boss noss can run that low, not sure I don't know much about it. I run 900 to 1000 on every quad/bike/car that I setup. But the people I set nitrous up for are usually pretty serious drag racers and when the bottle is 3/4 empty it is changed out to a new full one to make sure we are getting liquid N20 and not the gas which will definately cause you some problems.
the 300 was just a random number for the sake of argument actually its what the boss noss uses so thats why I chose that..... 600 would be good to, I never have problems in the summer with bottle pressure getting to low but in the fall it usually drops alot becuase we are usually racing well into the night
 

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I don't understand why this seems hard to understand. The video explains how it would work with regulated and a jeted system. The Boondocker has recently gone to fixed and adjustable regulators to make each shot consistant. thus able to keep AF correct while using NOS. As long as you have 300 psi in the bottle (IE Boss Noss kit) you will have consistant fuel/NOS mix at the intake. I don't know what the Boon is regulated at, but consistancy is key I would amagine. I can't see why any body would not use a regulated sytem (on a ATV), and a A/F meter. The safer the better.
I realize the cost is a bit higher, but the cost of breaking an engine is alot more plus the down time in riding.
 
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