Nitrous Express CARBURETOR PLATE SYSTEMS - Manual (Page 2)

2
MOUNTING THE BOTTLE
The nitrous bottle should be mounted in the trunk area or outside of the passenger compartment. If this is not
possible or practical a NHRA approved blow down tube and vent fitting (PN’s 11708, 11709) must be installed.
The positioning of the bottle should be as shown in illustration “A”. This will allow the siphon tube to be
covered at all times.
The mounting brackets should be assembled on the bottle with the short bracket approx. 2” from the bottom,
on 10 lb. bottles the long bracket should be place approx. 7” above the lower one, on 15lb bottles the upper
bracket should be approx. 12” above the lower bracket. Use this mock up as a template t o locate the four
mounting bo lt holes.
Note: Before drilling holes be sure to check for clearance beneath the mounting surface i.e.: fuel tank,
fuel lines, brake lines.
ILLUSTRATION A
MOUNTING THE NITROUS PLATE
Before any modifications are made under the hood, we suggest that you make a diagram of all hoses,
wiring, and linkages.
1. Pre-assemble t h e nitrous plate before you begin. The nitrous solenoid should be mounted towards the rear
of the vehicle, while the fuel solenoid should be mounted towards the front. Select the horsepower
setting that you want to start with, insert the proper nitrous jet in the plate jet fitting marked “N2O”
(CAUTION: You must always use a back-up wrench when tightening the lines to the plate fittings,
failure to do so could break the fittings and will void the system warranty!!!!!) Connect the nitrous
solenoid to this fitting with the 3/16 stainless steel hardline connector with blue fittings. The nitrous
solenoid can be identified by the “N2O” marked on the base. The Lightning solenoids a r e unique and
special attention must be paid to the “inlet-outlet port arrangement. The 1/8th NPT side inlet port is the
location for the N2O filter fitting, t h e
1/8 NPT purge port is for the optional purge valve. If no purge
valve is used a 1/8 NPT plug is provided to block this port. Repeat this procedure for the fuel solenoid
NOTE: Always check each jet for obstructions before using.
2. Remove the air cleaner.
3. Disconnect the throttle linkage, noting its position.
4. Carefully remove the fuel line, being careful to avoid spilling any raw fuel on hot engine parts.
5. Remove the carburetor; noting all vacuum connections before disconnecting any hoses.
6. Remove the old carb studs and install the longer ones furnished with the NX system. Install the new carb
gasket provided. Install the N2O plate, and place the remaining new carb gasket on top of the plate. Do
not re-install the carb yet.
7. It is now time to route the nitrous supply line.