Nitrous Express Water Methanol Stage 3 User Manual
Page 9
The controller also has the ability to be programmed and display data in standard or metric units. Holding down
button two while powering up the unit will trigger metric units. Pressing and holding button one as power is fi rst
applied will select standard units.
Testing the System:
Note: for best results, prime pump before use to clear air from
the pump and insure that the system is primed:
•
Fill reservoir with water approx ¼ full.
•
Remove tubing from nozzle (or solenoid if solenoid
used in-line between pump and nozzle) and run tube into sepa-
rate container.
•
Apply 12 VDC to red pump wire for approximately 5
seconds or until fl uid fl ow is consistent.
•
Pump is now primed. Reconnect tubing from pump
outlet to nozzle (or solenoid).
Step 1 Test Pump and Mechanical System
Turn key to ON position. Bypass the pressure switch by touching a wire between the two poles on the switch.
Pump should activate, green LED should go on, and fl uid level in tank should go down. It is recommended to
also check the nozzle spray pattern while following this procedure. Also check for leaks.
If pump goes on and fl uid level doesn’t go down, there is an obstruction in the tube or nozzle.
Activation of the pump in 1-5 second intervals will purge air from the system after install. This can be accom-
plished in initial use.
Step 2 Test LED vs. Pump On
Apply a 12v source to pole #87 of relay (single red wire, not red/green wire). Pump should activate and LED
should go on. Check LED ground and wiring if no activation. If wiring and ground check out okay, check LED
with 12v source.
Initial Tuning
#20001 Set Boost Switch Activation Point
At the factory setting, the boost switch will start injection at about 10 psig boost. Adjusting the set screw
clockwise will increase the boost pressure needed to activate injection. Turning the adjustment screw counter-
clockwise will decrease it. 1 full turn counter-clockwise will decrease the injection point by 1-2 psig. Typical
injection onset points are at ½ of maximum boost.
TECH TIP: Introducing water/methanol before ½ of maximum boost pressure could result in quenched combus-
tion and engine misfi re.