Vortech Maxflow Fuel System - Manual (Page 7)

D. Fuel rail return/Fuel regulator block mounting
1. Cut a 34” (or longer if needed) piece of hose from the supplied
bulk length of -6 hose. Attach one of the supplied -6 x 90
°
hose ends onto the end of the hose. Attach the hose to the
fitting located on the bottom of the driver side fuel rail. Route
the hose assembly around the front of the distributor (see
Photo 5) and down to the passenger side of the engine
compartment where the factory air filter box was originally
located.
2. Cut a 22” (or longer if needed) piece of hose from the supplied
bulk length of -6 hose. Attach one of the supplied -6 x 45
°
hose ends onto the end of the hose. Attach the hose to the
fitting located on the front end of the passenger side fuel rail.
Route the hose assembly down to the passenger side factory
airbox location.
3. Assemble the last Y-block using two supplied 1/4” NPT x -6
fittings and one 3/8” NPT x -6 fitting (the 1/8” NPT port at this
location is where a fuel pressure gauge tap should be
located).
•
Mount the Y-block assembly to the flat, horizontal portion
inner fender (see Photo 6) with the single port pointing to the
front of the vehicle.
•
Attach one of the supplied -6 straight hose ends to the return
hose coming from the driver side rail (cut hose length if
necessary).
•
Attach one of the supplied -6 x 90
°
hose ends to the hose
coming from the passenger side rail (cut hose length if
necessary).
•
Attach the hose assemblies to the mounted Y-block in the
port locations shown in the schematic.
4. Mount the existing fuel pressure regulator to the supplied fuel
pressure regulator adapter using the original hardware.
Mount the regulator and adapter to the supplied mounting
bracket using the supplied 10-24 x 3/8” socket head bolts.
Find a location on the side of the inner fender to mount the
regulator (see Photo 7). Mark and drill holes for the regulator
assembly using the bracket as a guide. Mount the bracket to
the inner fender using the two supplied #10 phillips head
sheetmetal screws.
5. Attach one -6 x 90
°
hose end to the front Y-block port and one
to the fuel regulator inlet port. Measure the length of hose that
will be required to connect the two hose ends (approximately
23”). Remove the hose ends, attach one to each end of the
cut hose and reattach to the Y-block and regulator inlet port.
6. Route the -6 return hose (from the tank) up to the fuel
regulator outlet port. Cut hose length if necessary and attach
one of the supplied -6 x 90
°
hose ends to the hose. Connect
the hose assembly to the regulator return fitting.
7. Connect the regulator vacuum port to manifold vacuum. If an
FMU is to be used, insert it in between the fuel regulator outlet
and the fuel return hose to the tank.
Photo 5
Photo 6
Photo 7
7
Photo 6.1 - Close up