Vortech Engineering Nissan 350Z/Infinity G35Supercharger System 2003-2006 Manual Do Utilizador

P/N: 4NZ020-010

12JAN07 v4.0 Nissan 350Z(4NZv4.0)

7.1

FUEL MANAGEMENT UNIT (FMU) RECALIBRATION (2005 G35 Only)

NOTE:

This step applies to Model Year 2005 Infiniti G35 vehicles only! For all

others, skip the following and proceed with Section 7.2.

Remove the six allen-head screws on top of
the fuel management unit (FMU).

Remove the diaphragm and 7:1 disk and
ring from inside of the FMU.
WARNING: Do not remove the four

screws holding the valve
body. Once taken apart,
the valve would have to
be replaced.

Install the replacement 6:1 ring (with
the notched part facing FMU body)
around the four screws inside the FMU.
(The 6:1 components are smaller diame-
ter than the 7:1).

Place the 6:1 disk inside the ring next to the
piston.

Install the new diaphragm and carefully line
up the holes to the body.

Place the spring retainer in the center of the
diaphragm with the spring between it and the
cover. (See Fig. 7.1-a.)

Reinstall the FMU cover with the six allen-
head screws. Do not over-tighten the screws.
The correct torque is 24 in/lb (2ft/lb).

6:1 RING SPACER

6:1 WASHER (Ø1.855")

LARGE DIAPHRAM

SPRING RETAINER

SPRING
FCU COVER

7.2

FUEL MANAGEMENT UNIT (FMU) AND FUEL PUMP INSTALLATION

Fig. 7.2-a

NOTE:

Ensure that the fuel lines are not kinked

and have smooth bends, no chafing etc.

Install the FMU in the location shown in
Fig. 7.2-a using the supplied sheet metal
screws (drill a pilot hole at each location
before installing the screw.)

Disconnect the fuel line fitting on the passen-
ger’s side frame rail near the engine.

Connect the FMU hoses to the respective fit-
tings on the fuel lines. (See Fig. 7.2-c.)

Install the fuel pump on the driver’s side of
the front cross member as shown. (See Fig.
7.2-b.) Run a ground wire from the negative
terminal on the fuel pump to one of the
mounting screws.

Fig. 7.1-a