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Yes...it can be done
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Discussion Starter · #1 ·

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This isn't for the 03 Cobra and starts at the 50HP jets, but for the 96-00 4v my NX sheet says:

N= N2O - F = Fuel

50HP
N35/F18

75HP
N41/F22

100HP
N52/F33

150HP
N62/F35

And on the 20113 Ford EFI Race 100-250HP Single Nozzle

100HP
N52/F33

150HP
N62/F38

200HP
N78/F46

250HP
N88/F52

Hope that helps
 

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Yes...it can be done
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Discussion Starter · #4 ·
Thanks dude! Are the nitrous anf fuel backwards though? I though it would be 18N/31F. :)
 

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Hey Steve I believe for the Nx kit it is 35/N and 18/F for a 50 shot.....of course you could always do a 38/N and 18/F too:)
 

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I can scan the Jet Sheet and my EFI Race 100-250HP jet card if you want to see. I listed the N2O and Fuel jets exactly as they are listed on the sheet and jet card.

John
 

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Yes...it can be done
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Discussion Starter · #9 ·
Thanks again guys. I am running 17 psi for the winter, with a 35 dry shot to cool the charge. In the summer time I plan on 11-13 psi and a 50-75 wet shot. I have the hitman kit, with a TPS switch, Mallory window switch, etc...

One thing that I wanna do different for the winter, is make the 35 a dry shot on the NX system. I am planning on capping the fuel side of the nozzle, and spraying into the air filter. I'm going to let the MAF dump the fuel through the 55 lb injectors that I just installed.

NX kits are wet only, so I am not sure about the jets for a nitrous only application anymore. What size jet would you guys start out with for nitrous only before the MAF?
 

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NX kits are wet only, so I am not sure about the jets for a nitrous only application anymore. What size jet would you guys start out with for nitrous only before the MAF?
I'd either call NX and ask, or start out with the smallest N2O Jet and work my way up. Maybe take it to a dyno to make sure your A/F is where it's supposed to be while spraying in front of the MAF.

John
 

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It got the Fuel jet right, but the HP is way off. Put in N/88 & F/52 is correct. On my EFI Race card it says 250HP, on the web calculator it said 350HP. LOL
 

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Get a .30 thousands drill bit and make your own hole in the jet that will be good for about 40hp when using it as a dry shot before the meter. A .35 thousand hole is good for about 50 hp. I spray my shit before the meter and it works great.
 

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GRNENVY said:
Get a .30 thousands drill bit and make your own hole in the jet that will be good for about 40hp when using it as a dry shot before the meter. A .35 thousand hole is good for about 50 hp. I
spray my shit before the meter and it works great.
How safe is it to do that? Have any photo's of where your N2O nozzle is placed in front of the meter?
 
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