PN29389 Datasheet, PDF (1/2 Pages) Mallory performance club – Competition Fuel Pressure Regulator For Fuel Injection

Competition Fuel Pressure Regulator
For Fuel Injection
PN 29389
IMPORTANT: This regulator must use a fuel return line. The fuel return line runs between the fuel
bypass port of the regulator and the fuel tank. Fuel pressures cannot be adjusted if the fuel return
line is absent.
Parts Included in this kit:
1 - Fuel Pressure Regulator
1 - Bracket
2 - Bracket Mounting Screws
2 - 3/8" NPT Pipe Plugs
2 - AN-8 Fittings
2 - O-rings for Fittings
SPECIFICATIONS:
Port thread sizes: 3/8" NPT and AN-8
Adjustment range: 30-100 PSI
Fuel Application: Gasoline and Alcohol/Methanol
GENERAL INFORMATION
Mallory’s 4305M regulator regulates fuel pressure between high pressure fuel pumps and fuel injection
systems. The regulator is recommended for Mallory Fuel 60FI, 110FI, or any fuel injection pump
designed to produce 30-100 PSI.
The 4305M regulator is a
return style fuel pressure
regulator. The excess
fuel and fuel pressure
is sent back to the fuel
tank through the fuel
return line. The fuel return
line runs between the
fuel bypass port of the
regulator and the top of
the fuel tank. The fuel tank
must have provisions for
a fuel return line.
This regulator is equipped
with a vacuum/boost
compensation port (brass
barb fitting) that can be
used to momentarily
decrease fuel pressure
(vacuum compensation) at idle and part throttle, or increase fuel pressure under blower boost (boost
compensa- tion). While it is not necessary to connect a hose to the vacuum/boost compensation
port, it may be beneficial in some cases. However, the small plug
on the barb must be removed before use.
You can mount the 4305M regulator at any angle. For maximum efficiency, mount it as close as
possible to the fuel injection system. DO NOT mount the regulator on or near exhaust manifolds. A
bracket is provided for convenient mounting.
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