NITROUS OXIDE GENERAL &
TECHNICAL INFORMATION

Technical Information CLICK HERE
Tuning Combinations CLICK HERE

NOS Q & A CLICK HERE



Suggested Baseline Tuning Combinations

NOTE: All systems require a minimum flowing fuel pressure of 5.5 - 6 psi;
6-7 psi for Fogger systems on V-8s.

Cheater System

EXTRA HP JETTING
N2O/FUEL
FUEL OCTANE (R+M/2) IGNITION
TIMING
SPARK PLUG
HEAT RANGE
100 HP
.047/.053
92+ pump gas
2-4° retard
Standard
125 HP
.055/.061
92+ pump gas w/octane booster
2-4° retard
Standard to 1 step colder
150 HP
.063/.071
100+ pump gas w/octane booster or 100+ racing gas
4-6° retard
1 to 2 steps colder
180 HP
.073/.082
105 octane racing gas
4-6° retard
2 to 3 steps colder
210 HP
.082/.091
110+ octane, .74 or higher specific gravity, racing gas
6-8° retard
3 to 4 steps colder
250 HP
.093/.102
110+ octane, .74 or higher specific gravity, racing gas
8-10° retard
3 to 4 steps colder

..Big Shot System
EXTRA HP JETTING
N2O/FUEL
FUEL OCTANE (R+M/2) IGNITION
TIMING
SPARK PLUG
HEAT RANGE
175 HP
.073/.082
92+ pump gas w/octane booster or 100+ racing gas
4-6° retard
1 to 2 steps colder
225 HP
.082/.091
92+ pump gas w/octane booster or 100+ racing gas
6-8° retard
1 to 2 steps colder
275 HP
.093/.102
105 octane racing gas
8-10° retard
2 to 3 steps colder
325 HP
.102/.110
110+ octane, .74 or higher specific gravity, racing gas
10-12° retard
3 to 4 steps colder
350+ HP
.120/.116
110+ octane, .74 or higher specific gravity, racing gas
12°+ retard
3 to 4 steps colder

..Pro Shot or Pro Race Fogger Systems
EXTRA HP JETTING
N2O/FUEL
FUEL OCTANE (R+M/2) IGNITION
TIMING
SPARK PLUG
HEAT RANGE
100 HP
.018/.018
92+ pump gas
2-4° retard
Standard
125 HP
.020/.020
92+ pump gas w/octane booster
2-4° retard
Standard to 1 step colder
150 HP
.022/.022
92+ pump gas w/octane booster or 100+ racing gas
4-6° retard
1 to 2 steps colder
175 HP
.024/.024
105 octane racing gas
4-6° retard
2 to 3 steps colder
250 HP
.028/.028
110+ octane, .74 or higher specific gravity, racing gas
6-8° retard
3 to 4 steps colder
300 HP
.032/.032
110+ octane, .74 or higher specific gravity, racing gas
8-10° retard
3 to 4 steps colder
350 HP
.036/.036
110+ octane, .74 or higher specific gravity, racing gas
10-12° retard
3 to 4 steps colder
400 HP
.040/.040
110+ octane, .74 or higher specific gravity, racing gas
12°+ retard
3 to 4 steps colder
500 HP
.042/.042
110+ octane, .74 or higher specific gravity, racing gas
12°+ retard
3 to 4 steps colder