bottle valve differences

[mrr23]

while the bottles look the same on the outside, it's the bottle valve and siphon tubes that are different. while doing the nitrous nozzle shootout, NX donated three bottle valve so all the bottles during the test would be the same to prevent any variance.

three things you'll see right off the bat when looking at the compucar and NX bottle valve/siphon tube combo.

first is siphon tube size. the NX is 3/8" OD. the compucar is 1/2" OD. the ny-trex is 3/8" OD. i can almost fit the NX inside the compucar. which tells me you would get more volume through the compucar. second is how each company bends their siphon tubes. also, ny-trex adds a flare at the end. third, the 45* angle outlet of the NX versus the 90* angle of the compucar and ny-trex. the NX having a better flow coming out of the valve.

http://tredalign.com/images/nitroustest/siphontube1.jpg

here you can see how much thicker the compucar siphon tube is compared to the NX and ny-trex. makes it harder to flex and bend. i have seen my ny-trex siphon tube bent out of shape after using it for some time. it has the same thickness as the NX.

http://tredalign.com/images/nitroustest/siphontube.jpg

here, you can see that compucar threads their siphon tube into the valve. the NX is pressed in. ny-trex uses an AN fitting. we have heard about siphon tubes falling out of the valves. looks like compucar and ny-trex solved that one.

http://tredalign.com/images/nitroustest/siphontube2.jpg

[mrr23]

now, we look at the bottle nuts. NX supplies a two piece design. the compucar and ny-trex is the traditional single piece.

http://tredalign.com/images/nitroustest/bottlenut.jpg

the NX two piece design eliminates the gasket that's needed with the single piece design. look into the single piece nut. with it sitting flat, the nitrous runs into the hole and it creates some turbulence. the two piece design slides into the valve. thus, getting rid of that turbulent area. it's a minor difference. but, every little bit helps.
http://tredalign.com/images/nitroustest/bottlenut1.jpg

[spike_africa]

Great info there.

[mrr23]

thanks. and welcome to the site.

[speedtweekerz]

we should do a comparison on flow rates

[mrr23]

you got a way to do that?

[speedtweekerz]

maybe a timed comparison? maybe using a remote b-valve opener with the bottle completely opened. then when the switch is opened , record the amount of time it takes for the bottle to go empty? this would be difficult to do since the bottles would have to have the exact amount n2o in each one. and expensive! i'll work on this one.

[juiSSed]

Use Co2 instead of nitrous. Much cheaper, same chemical properties.

[melo yelo]

I'd be interested to see a comparison of the three.

[Ground Rat]

Yeah, great idea.

[mrdodge01]

Very interested in this- however old it may be, lol. I bought two compucar bottles recently, and had issues with my car while using one of the bottles. My car cut out all the way down the track on a 150 shot with the compucar bottle, then I put 175 jets in it and put my NX bottle back in, and the car picked up a ton compared to the extra 25 hp I gave it. Went from a 10.67 at 124 to a 10.27 at 129...

[melo yelo]

Any updates?