Can't get any answers in outr nitrous section, so I thought I would try here. Here is what I got and it's on a NOS (Holley) brand system with a single fogger.

Based on 43psi
nitrous/ fuel
34/18 40 shot
37/22 50 shot
41/26 75 shot
46/30 100 shot.

What are these sizes based on our WOT of 58-59psi

BTW, these nubers were from Holley, so the nitrous jets will probably be the same, but the fuel will be rich at our pressure. So what would you guys reccomend for a fuel jet at these shot sizes?

 

here are the nx jet sizes i got from nitrous outlet, so far they seem very rich

nitrous/fuel

31/18 35shot
35/18 50shot
41/22 75shot
52/31 100shot << no wonder a 100shot gives me so much

going to try a(these numbers are based on various posts)

57/33 for 125
63/36 for 150
70/40 for 175
82/46 for 200

as you can see the numbers are far from consistant, they make no sence but that is what i am finding. i did order every jet from 31 to 46 so i can fine tune the fuel and i am not sure a -3 line(from the solenoid to the jet) will flow a 200shot but i hope to try.

 

So what if I went with a 37/18 for a 50 shot, do you think that would be lean? How close are the NX and Holley size charts. Are the jets the same?

 

I wouldnt know anything about these large shots. I wont run over the 25 shot I have in it when i got it from HYDE. I have mine wrote down some where. I will find them

 

Here's the jet sizes that were given to me (supposedly originated from NX) for the Dodge EFI Kits. Not sure if fuel pressures would be different between Dodges and Chevys but they should be accurate.

50hp: 35/18
75hp: 41/22
100hp: 52/33
125hp: 57/33
150hp: 62/35
175hp: 73/41
200hp: 78/46
250hp: 88/46

 

Here is the info I got one time while I was looking into it:
From Colonel's faq page:
HP-- Single N2O-Dual N2O-Single Fuel
25 .024
30 .026
35 .028 .020
50 .037 .024 .020
75 .042 .028 .022
100 .047 .032 .025
125 .055 .038 .029
150 .063 .044 .034
175 .070 .052 .038
200 .082 .047 .044
250 .093 .055 .050

Fron NX tech:
HP N20 Fuel
50 35 20
75 41 24
100 52 33
150 62 38