Holley P/N 512-505 - Manual (Page 3)

3
STATIC FUEL PRESSURE ADJUSTMENT
The Supercharger Regulator comes preset from the factory at 40±1 PSI. Unless another setting is desired, this does
not have to be changed.
NOTE: Maximum static pressure setting for this unit is 60 PSI.
WARNING! DO NOT SET STATIC PRESSURES ABOVE 60 PSI, AS DAMAGE TO THE REGULATOR FUEL SYSTEM
COMPONENTS MIGHT OCCUR.
TUNING THE SYSTEM
The Holley Supercharger Regulator (SR) comes with one additional pair of plates that changes the fuel pressure/boost
pressure curve. The SR comes with a baseline setup, which contains no plates. The baseline setup will provide a larger
increase in fuel pressure as boost increases. If a lower slope is desired, the additional disks can be installed. The graph
below indicates the increase in fuel pressure as boost increases with and without the plates installed.
Fuel System vs. Boost Pressure
Static Flow set @ 40 psi
0
50
100
150
0 10 20 30
Boost Pressure (psi)
Approximate Fuel System
Pressure (psi)
No Plates
With Plates
Figure 2
Figure 3 Figure 4