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Nitrous Jetting Charts

MOTORCYCLE WET NITROUS JETTING CHART

The following is intended as a safe baseline for fogger systems. There are two fuel jet columns listed below. One column for fuel jet size with the fuel pump that comes in the kits and the other column for hi-output pumps – like the Holley Blue with 5-7 psi flowing pressure. The nitrous jet chart is based on bottle pressure of 900-950 psi. Ignition timing should as a baseline be retarded to 1/5 to 2 degrees for every 50 h.p. worth of nitrous hp used. Ignition timing should be retarded from the best timing on motor only. (The point at which best MPH or Torque was achieved.)

NitrousJet:

FUEL JET
NOS Pump:

FUEL JET
Hi-output Pump:

HP Gain/
Per cyl.:

HP Gain/
2 cyl.:

HP Gain/
4 cyl.:

14 16 14 6hp 12hp 24hp
16 18 16 9hp 18hp 36hp
18 22 18 12hp 24hp 48hp
20 24 20 15hp 30hp 60hp
22 26 22 17hp 34hp 68hp
24 28 24 20hp 40hp 80hp
26 30 26 25hp 50hp 100hp
28 32 28 30hp 60hp 120hp
30 34 30 34hp 68hp 136hp
32 36 32 38hp 76hp 152hp
34 38 34 40hp 80hp 160hp
36 40 36 45hp 90hp 180hp
40 44 40 50hp 100hp 200hp
42 46 42 60hp 120hp 240hp

This is just a guideline, there are many variables such as – nozzle type and distribution block type that will change
your particular set-up.  Consult your engine builder for fine tuning tips. 

NITROUS OXIDE HORSEPOWER CHART PER JET

Nitrous Jet .014 .016 .018 .020 .022 .024 .026 .028 .030 .032 .034 .036 .038 .040 .042 .044 .046 .048
HP Gain per Jet 6hp 9hp 12hp 15hp 17hp 20hp 25hp 30hp 34hp 38hp 40hp 45hp 50hp 57hp 67hp 75hp 82hp 89hp

 

Nitrous Jet .050 .052 .054 .056 .058 .060 .062 .064 .066 .068 .070 .072 .074 .076 .078 .080 .090 .100
HP Gain per Jet 96hp 104hp 112hp 121hp 130hp 140hp 150hp 160hp 170hp 180hp 191hp 202hp 215hp 230hp 245hp 260hp 325hp 400hp

 

 

Microstorm Nitrous Controller