ZEX™ Jet Charts

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Nitrous/Fuel Jets

Precision-machined jets are used for adjusting both nitrous and fuel flow
Special internal taper minimizes turbulence
Results in very consistent flow and power
Packaged individually for ease of ordering

PART NUMBER	DIAMETER
NS6500M	.017
NS6500N	.019
NS6500O	.021
NS6500P	.026
NS6500Q	.030
NS6500A	.032
NS6500B	.034
NS6500C	.035
NS6500D	.036
NS6500E	.038
NS6500F	.040
NS6500G	.043
NS6500H	.046
NS6500I	.052
NS6500S	.053
NS6500R	.054
NS6501E	.056
NS6501D	.057
NS6500T	.062
NS6500U	.064
NS6501C	.067
NS6500V	.072
NS6500J	.073
NS6500W	.074
NS6501B	.076
NS6500K	.078
NS6500L	.082
NS6500X	.083
NS6500Y	.088
NS6501A	.105
NS6500Z	.125

EFI WET SYSTEM
	4 CYL. FUEL / N20	6 CYL. FUEL / N20	8 CYL. FUEL / N20
55hp	17 / 32	17 / 32	19 / 32
65hp	19 / 36	19 / 36	21 / 36
75hp	21 / 40	21 / 40	26 / 40
100hp	26 / 46 SEE NOTE #2	26 / 46 SEE NOTE #2	30 / 46
125hp	30 / 54 SEE NOTE #2	30 / 54 SEE NOTE #2	34 / 54
150hp	38 / 67 SEE NOTE #2	38 / 67 SEE NOTE #2	38 / 67 SEE NOTE #2
175hp	43 / 83 SEE NOTE #2	43 / 83 SEE NOTE #2	43 / 83 SEE NOTE #2

EFI DRY SYSTEM SEE NOTE #1
	4 CYL. FUEL / N20	6 CYL. FUEL / N20	8 CYL. FUEL / N20
55hp	36 / 32	36 / 32	-
65hp	34 / 35	34 / 35	-
75hp	32 / 38	32 / 38	43 / 40
100hp	26 / 46 SEE NOTE #2	26 / 46 SEE NOTE #2	40 / 46
125hp	-	-	34 / 54

NOTE #1: 82018 system uses special jetting. Call factory for further details.

NOTE #2: Fuel pump upgrade required. Use ZEX Booster Fuel Pump Kit #82020 for return style fuel system.