question on NOS

vinny2

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Can someone explain to a novice, how NOS works, how it is used, etc..........Do you just hit a switch while driving? How long does it stay "kicked in"? How many shots, in say a 15lb. btl?

Thanks.
 

plumcrazy

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since you have a vec2, let that be the WOT switch and the RPM window switch. mine is set up like that. once i arm the system, the vec2 takes over the firing of the nitrous at 3000rpm's and only at wide open throttle up to 5200 rpm's.

how many shots depend on what size shot you are running.
 

Anaconda

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First off, call it nitrous. NOS is a brand name. This isn't The Fast And The Furious.

You can hit an actual switch/button, or you can have a wide-open throttle switch where it kicks on instantly when the pedal is floored.

Most bottles are 10 pound bottles, but 15's are available. I haven't used nitrous on my Viper, but in my old Mustang, you get about seven 1/4 mile passes with a dry 150 shot in a 10 pound bottle without purging. I don't see the point in purging on a street car. I just "purge through the motor." Now, yeah, if you are track-only, it makes sense.

Best thing you can get is a bottle warmer. Remote openers are nice too.
 

Andrew2KRT10

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Mine is a 150 shot, Nx, wet. I use it mostly on big road courses, not quarter mile, and mine is throttle activated. As long as my foot is down, I'm spraying. At Pocono, I'll get about 3 passes on the back straight and I empty a 10 Lb bottle.

AC
 

Andrew2KRT10

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By the way, the remote opener is a waste in my opinion. It's to hard to hear from inside the car if it is open or closed, it is to much of a pain to take on and off and switch to other bottles especially if you go through the bottle fast.

The bottle opener is for the guy who drives around town, and never knows when he might be tempted to street race and doesn't feel like getting out of the car to go into the trunk.

AC
 

PDCjonny

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What if any effect does using nitrous have on the stock engine? Long term effects if used occasionally?
 

IEATVETS

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Nitrous is the way to go, a lot cheaper than a blower and just as much power if not more in some cases. Yeah, filling the bottle or bottles as in my case sux, it is still worth it in my mind. I feel the same way Andrew does about the remote opener, a waste of money. I have to open the trunk to turn the juice off anyways at the end of a drive so I just leave the trunk open and turn them on before the next drive. Everyone has varying opinions about nitrous but personally I love my setup. Twin bottles, WOT switch, purge and bottle heater. No bottle opener and no RPM switch.
 

Snakester

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I really prefer having both the RPM switch and remote bottle opener. Along with a fuel pressure switch and WOT switch, I consider the RPM switch to be a valuable safeguard as it reduces the chances of having an intake explosion at low RPM, and reduces the chances of the mixture going lean if you hit redline and the fuel cuts out.

I'll readily admit that changing out the bottle with the remote opener is a pain. But I find it well worth it to have the nitrous power available in a couple seconds from inside the car. :laugh:

I drive my Viper almost every day, and I wouldn't want to leave the bottle open all of the time, or to only have the N2O available when I think to turn it on before I go driving. And worst of all would be to not have opened the bottle, and not have the nitrous available that one time when you really want the extra power. :eek:
 

Ivory

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Since I have both the window switch and the remote bottle opener, I feel that not having the opener is like getting up to change the channel on your TV. Who likes having to get up to turn the channel or turn the TV on/off? The window switch is like using a ******, it's not mandatory, but why take additional risk if you don't have too...

my 02.
 

Anaconda

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Can you guys with trunk-mount setups in your RT10's post pics of the bottle in the trunk?

I want to know if it would be possible for me to mount mine on the passenger side, with the 3 piece hardtop IN the trunk. I realize I would have to use like a 5 pound bottle, but if I could fit that in there, that would be pretty sweet!
 

Jack B

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Vinny:

A few comments:

1. The last third of the bottle is not effective as the first two thirds. This is due to a phase change to gas when you try to maintain pressure. Contrary to belief, nitrous is only effective in a liquid form - my point is, a fifteen bottle or two ten pound bottles is the way to go. On a viper, a five pound bottle would only give you a couple of good runs. Typically when you fill a bottle you are topping off a partially filled bottle. You can run the bottle lower but the a/f goes rich because the nitrous is all gas.

2. Remote bottle opener
a. The only type that does not affect performance is the motor operated valve. The solenoid type always creates issues.

b. As far as the need for the remote opener: you need a dash mounted pressure gauge to take advantage of the remote opener; there are no solenoids that are meant to be continually on; if a solenoid were to fail, it gives you the ability to shut the system down; I personally find it a pain to have to go into the glass, especially when i'm parking, as in a restaurant lot.

c. Changing a bottle with a remote opener - It should be no different than changing a bottle without an opener. I have two bottles and have an opener bracket on both bottles.

Take a look at my posted pictures, the most recent have several photos of the remote opener setup.
 

Snakester

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I'm not following your comments 2) a, b, and c.
From your pictures it looks like you have a NOS brand bottle opener, which appears to be similar to the NX Express opener that I have, but different overall.

With my bottle opener is is indeed a pain to remove the bottle for refilling. You need to remove the whole motor assembly and collar to get the bottle out, and there is no way to conveniently open or close the bottle (for refilling) with the opener bolted on top.

Do you take the bottle AND opener out to refill it?
If so, how do you open and close the bottle for refilling without electricity?
 

Jack B

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Snakester:

The motor is held on by a single knob. The motor pops right off without any tools and that exposes the gear which is not too different than a stock open/close knob. In other words the gear becomes the manual open/close knob. As I said, the removal is no different than a standard bottle. The manufacturer is Dynotune. It looks like the NOS brand, but, the mounting/removal is much better.
 

Snakester

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Sounds like a much more practical design than the bottle opener that NX Express makes.
I still like having a bottle opener, but it is a pain to swap the bottle.
 
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vinny2

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Thanks for the info. Very helpful to someone just learning. Even Anaconda's smart a$$ comment about what it's called. Any recommendations for Atlanta area shop, if I decide to get into this, would be appreciated.

Thanks.
 

99 R/T 10

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What's the difference between a wet and dry shot?

The wet shot adds fuel with the "NOS", the dry shot only shoots the "NOS" and has a fuel enrichener to have the stock PCM add fuel when it sprays.
 

Jack B

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With the viper you almost have to go wet unless you have a VEC2, some nerve and knowledge. NOS has a dry kit, but, it puts you on the edge.
 
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