Page 14 - nitrous-8cyl-twin-nozzle-wet
P. 14

2.8.3  Fuel Supply Connection by Tapping into the main Fuel Supply Fitting

     Some engines utilize a fuel rail or distribution block system that does not have test ports and does not allow
     drilling and tapping to install the 4AN fitting. Supplemental fuel for the DynoTune nitrous oxide injection kit
     must be acquired from the fuel injectors high-pressure supply line.

        1)     Locate the main fuel supply line. The main supply line feeds pressurized fuel from the fuel pump
               (in-line or in-tank fuel pump) to the fuel filter and from the fuel filter to the fuel rail or distribution
               block. The most desired location to “Tap” into the fuel line is after the fuel filter.
        2)     Examine the outlet fuel filter or the inlet to the central distribution block for a “Banjo” bolt fitting.
               See figure 8. Remove the fitting and examine the diameter of the shank of the fitting. To use this
               fitting for the supplemental fuel supply, the diameter must be sufficient for a ¼” hole to be drilled
               though the centerline of the fitting. See figure 8.
        3)     Drill a 1/14” hole though the centerline of the banjo fitting.(Note: Remove Banjo before drilling)
        4)     Tap the 1/4” hole with the 1/16” NPT tap (25). CAUTION! All debris MUST be removed from the
               inlet fitting. Failure to do so can result in severe engine damage.
        5)     Thread the brass 1/16” NPT to 4AN fitting (22) into the modified banjo fitting. Use Teflon paste to
               avoid fuel leaks.
        6)     Install the modified banjo fitting into the fuel filter.
        7)     Thread the open end of the red 4AN hose (21) on to the 4AN fitting.





































                                                             FIG. 8

     2.8.4  Fuel Supply Connection by Tapping into the main Fuel Supply Hose (rubber hose only)

        1)  Locate the main fuel supply line. The main fuel supply line feeds pressurized fuel from the fuel pump
            (in-line or in-tank fuel pump) to the fuel filter and from the fuel filter to the fuel rail or distribution block.
            The most desirable location to “Tap” into the fuel line is after the fuel filter.
            WARNING! Certain vehicles are equipped with main fuel lines that are hard plastic with a
            rubber-like shell. DO NOT cut or splice into this type of line, since leak proof connections
            cannot be achieved with the supplied hardware. Leaking fuel lines may cause engine damage,
            injury or death.
                                                       14
   9   10   11   12   13   14   15   16   17   18   19