N.O.S. Jets

I have a single fogger system. I was wondering what jets you guys use. Do you guys use the powershot referenced from NOS, or something else? Thanks guys.

34/18 40HP
37/22 50HP
39/24 60HP
41/26 70HP
43/28 80HP
46/30 100HP
52/33 125HP
61/38 150HP (max for 1 nozzle)


Thats for an NOS kit @ about 42-43psi of fuel pressure.

Thanks maing=)

Spreadsheet I came across for calculating N2O jettings.

(for NOS type flare jets.)

http://www.fuelslut.com/hosting/uploads/nitrous_jetting.xls

Not sure who came up with that chart but it's off by quite a bit. The nitrous to fuel jet spread is'nt too bad but the listed HP is way off. A 46 jet is closer to 100hp then it is 50hp. Plus most nozzles won't flow anything much bigger than a .061-.063 jet.

a .46 on a dry kit is a 100 shot IIRC..


This was for a wet kit...


I didn't come up with the chart, and I use a NX kit.. So I havent tested any of these. Just something I found on the net.

It doesn't matter if it is a wet kit or a dry kit. Nitrous is pretty much a constant, X amount of nitrous provides enough oxygen to burn X amount of fuel. You have to be careful what you find on the net I've seen some wacky things.

Originally posted by snow2000SS
It doesn't matter if it is a wet kit or a dry kit. Nitrous is pretty much a constant, X amount of nitrous provides enough oxygen to burn X amount of fuel. You have to be careful what you find on the net I've seen some wacky things.




that chart is a little off. i CALLED N.O.S. and they gave me the jets for a 50,100,150 shots on a wet kit with a fogger nozzle. here's what they told me-

50shot- 37N/22F

100shot- 47N/30F

150shot- 61N/33F

the 50 you have listed is the same, but the 100 is a LITTLE off, and the 150 is way off. right now ive got 61N and a 32F because the shop a bought my jets from didnt have a 33 at the time, so im prolly running a little more than a 150.

and BTW, you CAN run more than a 150 on a NOS nozzle. the nozzle has nothing to do with how much you can flow. your solinoids will only flow a certain amount, and that's what will limit you. if you have solinoids that will go up to 100hp, then technically, you could run with NO jets and you're still only going to get a 100shot out of them- dont even question, ive seen it done. i also have friends that have run 175-200shots on a NOS foger nozzle.




jon

Originally posted by snow2000SS
It doesn't matter if it is a wet kit or a dry kit.

That statement is WAY off. The jettings are *completely* different for a wet vs dry setup.


And comnbyu- It depends on what nozzle you have. The nozzles DO have limitations, just sometimes the nozzle limitation isn't as low as the solenoid's flow limit. (.073 NOS orifice limited @ 170hp)

I know the Nitrous Works EFI standard nozzle will only flow 100hp. They have an upgraded nozzle that will flow up to 175hp..

And comnbyu- It depends on what nozzle you have. The nozzles DO have limitations, just sometimes the nozzle limitation isn't as low as the solenoid's flow limit. (.073 NOS orifice limited @ 170hp)




that may be true for Nitrous Works, but not for N.O.S. i called on that too. the only differences in the 3 nozzles offered for NOS is the way it sprays, or the distribution. basically, the best fogger they have, is supposed to give off a more evenly distrubuted, denser, fogg (thus burning better) than the cheaper nozzles. that's it.



jon

No you can not run more than 150HP on a single nozzle. The only nozzle that has the potential to flow more would be a 13700A. All the other nozzles have an internal orifice of around .061-.063 or so. The 13700A nozzle has a larger orifice internaly so will support a bit more power but that nozzle does not come in any single fogger kit. But even if you tried to run an A nozzle that big it may be a little harder to tune due to the fact that they tend to pressureieze the fuel side. And the bigger the nitrous jet the worse it stalls the fuel.

My statment was not wrong. Nitrous is a constant period. A 46 jet flows the same amount of nitrous in a wet kit as it does in a dry kit. It doesn't matter if it's a wet kit or a dry kit the same amount of nitrous means you can burn the same amount of fuel.

Originally posted by snow2000SS
No you can not run more than 150HP on a single nozzle. The only nozzle that has the potential to flow more would be a 13700A. All the other nozzles have an internal orifice of around .061-.063 or so. The 13700A nozzle has a larger orifice internaly so will support a bit more power but that nozzle does not come in any single fogger kit. But even if you tried to run an A nozzle that big it may be a little harder to tune due to the fact that they tend to pressureieze the fuel side. And the bigger the nitrous jet the worse it stalls the fuel.

My statment was not wrong. Nitrous is a constant period. A 46 jet flows the same amount of nitrous in a wet kit as it does in a dry kit. It doesn't matter if it's a wet kit or a dry kit the same amount of nitrous means you can burn the same amount of fuel.




i didnt say your statement was wrong, i simply said that i called NOS and talked to THREE different people to verify what i got. my above list is what i was told for those particular shots. i dont know about any of the other ones (45,75,etc).

and YES, you can run more than a 150 shot on a NOS fogger nozzle- ITS ALREADY BEEN DONE;) so that's not disputable...

like i said, it's your SOLINOIDS that limit the shot.

i agree with what you said on the wet/dry thing. the only difference in the two is that the additional fuel is being inducted at different points. the n2o is the same regardless of how/where the fuel is added.




jon

The fact that my statment was not wrong was not directed towards you it was to 11 sec GTA.

The fogger nozzles that come in the kits will not flow anything bigger than a .061 to .063 jet. As I said only the A nozzle will have a chance and even it will have it's problems. You can put any jet you want to in the nozzle that doesn't mean it will flow it. And I doubt anyone at NOS would tell you that you could flow more than 150HP through a single nozzle. Take one the nozzles that is suposedly running more than 150HP take a pin guage and measure the ID of the nitrous passage and see how big it is. I'll bet you find out it isn't bigger than about .063".

Shaun
NOS tech dept.

Shaun,


I see what you're saying. I was confusing myself between all the different things I've read. I was thinking between 5177 dual nozzle dry kits, etc etc in comparison to my NX single fogger kit.

And as far as the debate about nozzle orifice, you're completely right.



Question for you Shaun (since your a NOS tech)

I've read that NOS recs. 800-875 bottle pressure for optimum performance on your kits. NX recs. 1050. Wouldn't that change jettings between the kits?

COMNBYU,
What NOS nozzle are you using? I currently have a Standard NOS fogger I want to use but the NOS tech said I should use the 90 degree softplume. Do you think the Standard fogger will work for an LT1 setup, It will use a Pro Shot and Fuel cheater solenoid If that effects anything. I want to copy your set up because I have these parts from a Pro Shot kit laying around the garage that I picked up super cheap $$$.
Thanks,
Josh

Originally posted by STOCKTA
COMNBYU,
What NOS nozzle are you using? I currently have a Standard NOS fogger I want to use but the NOS tech said I should use the 90 degree softplume. Do you think the Standard fogger will work for an LT1 setup, It will use a Pro Shot and Fuel cheater solenoid If that effects anything. I want to copy your set up because I have these parts from a Pro Shot kit laying around the garage that I picked up super cheap $$$.
Thanks,
Josh



i've got the standard NOS fogger nozzle. it lists for 29.95 in SUMMIT. like i said before, when i CALLED NOS, the tech i talked to said the only difference in the nozzles was the density/distribution of the n2o/fuel. i will be sticking with my standard nozzle when i bump up the shot. if it doesnt pick up any, than i'll see about another nozzle, but from what ive SEEN, it should work with no problem. im currently running a 150 wet shot on it right now and eventually will ugrade my solinoids to run a 175-200.

btw, i've got the nozzle on the right side of the intake tubing JUST before the TB.



jon

11 sec GTA I can see where the dual nozzle set up could be confusing. But there is a way to take multiple jets and figure what they are equal to in one jet. the formula is like this.


jet size squared, times number of jets, and the square rooted.

So on an LS1 dry kit 100hp is 2 .032" jets. it would go like this-

32*32=1024*2=2048 and the square root of that is 45.25 which is pretty close to our 46 jet for 100hp. I hope that helps.

As far as bottle pressure we recomend 950psi. Anything over 1050 nitrous hits whats called it's critical point which is where it is no longer a liquid. Once it phase changes the flow characteristics can become unpredictable. Plus if you start out at a real high pressure your bottle pressure will drop faster. That being said sometimes the small 1 1/2" guages can read low. So if the guage says 1050psi you really may only have 950psi. But if you have a bigger gauge like an Auto Meter or something you don't want to be over 1050psi. If you have any other questions just let me know.

COMNBYU,
Thanks for the info!
One quick question, are the n20 and fuel jets interchangeable?
Can I stick a .028 n20 jet on my fuel solenoid side for instance?
Also would steel brake line work from the solenoid to the fogger so I dont have to buy braided lines?
Thanks :cool:

Originally posted by STOCKTA
COMNBYU,
Thanks for the info!
One quick question, are the n20 and fuel jets interchangeable?
Can I stick a .028 n20 jet on my fuel solenoid side for instance?
Also would steel brake line work from the solenoid to the fogger so I dont have to buy braided lines?
Thanks :cool:



unfortunately, i wouldnt recommend either of those suggestions. as far as the jets, heres how it works- on a EFI car such as ours, your jet for N2O will be bigger than the fuel jet because of the high PSI of the fuel. so if you were to switch the jets, you'd likely run VERY rich or may not work at all. this would be because the bigger N2O jet would be on the fuel side (which is going to let more fuel in), and the smaller fuel jet would be on the N2O side (allowing less nitrous). when you have more fuel than N2O, you will run rich, and if theres TOO much fuel, it may not work at all.

as for the line, i would absolutely not use steel line for the N2O. i would buy the braided lines, which are recommended. i know that for the purge, you can use copper line, but even then it's just for a second or two. i heard an explanation a while back why you shouldnt use steel line but i cant remember. my advice would be to use braided.

maybe our esteemed, certified N.O.S. Tech can answer that... :D




jon

COMNBYU,
I know if I swap the fuel with N20 it will be extremly rich. I will use the jet specs you posted
37/22 50hp
etc.
etc

I meen If I have a 22 n20 jet can I put It on the fuel solenoid side
and jet it
37N20 22fuel for a 50hp shot.
Are the jets the same weather its a fuel jet or n20 jet?
Isnt it the diameter inside the jet, like is a .028N20 jet the same thing as a .028 Fuel jet to interchange them? Im just trying to use what I have laying around here in the garage.
Also what size braided line (-3AN ?)would go from the fogger to the solenoid, right now I have the stainless lines left from the Direct port setup that have 3/16 compression fittings to hook the fogger to the solenoid. I just dont know what -AN fittings will work in place of these.
Thanks,
Josh

ok, i dont know if a quite get what you're saying. here's what im getting...

if you take a 37N 22F and lets say you want to bump up the shot later to a 150 (or in this case, somewhere close). you COULD take the 37N from your 50 shot and use that in your 150 shot, which would normally be 61N 33F. you could use the 37N (from your 50 shot) in place of the 33F on the 150 (thus ending up with a 61N 37F), you just wont have quite a 150, prolly more like a 120-130. if that's what you're asking, then yes you can. all of the jets are the same standard flare jets. the only thing that changes them is the size.

as far as the line, i bought kit that came with line, so im not positive. im looking in my SUMMIT right now and im seeing the lower HP kits look like they come with 4AN, and the kits for larger shots or for more HP come with 6AN. looks like my kit prolly came with the 4AN...




jon

Shaun,
I have called NOS 3 times before, and they gave me 3 different numbers for the HP shots... I have THIS (http://store.summitracing.com/partdetail.asp?part=28406) nozzle. I need 50, 75, 100, 125, 150 Jets. I need to get a definitive number... :D

Thanks in advance..