512-505 - Holley Fuel Pressure Regulator - Boost Compensating

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Part #: 512-505
Notes: Boost Compensating Universal EFI Fuel Management Unit
Hot Street/Race EFI Applications
Two Port
Adjustable from 20-75 PSI
MSRP: $305.95
Your Price: $274.56

This Item Also Available In

Part Number Price Notes & Specs
512-504-5 $253.92 Notes Boost Compensating Universal EFI Fuel Pressure Regulator
Hot Street/Race EFI Applications
Two Port
Adjustable from 15-65 PSI

All Fitments

Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes

Product Description

This precision adjustable fuel metering regulator is the ultimate fuel pressure control unit designed to work on all naturally aspirated EFI, turbo and supercharged applications like vehicles that run in the Pro Street, Pro Import and Outlaw classes. This is a 2 port 1:1 boost compensating return style regulator that is adjustable from 15-65 PSI + boost reference and is designed to be used in conjunction with any electric EFI fuel pump. Features built in gauge port, mounting bracket, two AN -8 O-ring fittings and a AN-6 O-ring return fitting. It also features black hard anodize for ultimate durability.

Boost Compensating Fuel Management Unit
This Fuel Management unit is designed to run in conjunction with the factory fuel pressure regulator. This is the ultimate manual fuel management control unit and is installed in series with a stock regulator in the return line back to the tank. The unit increases fuel pressure in proportion to boost pressure up to a 4:1 Idle/WOT pressure ratio depending on which included adjustable disks you select. This add on upgrade is ideal to be used with aftermarket turbo and supercharger kits that require additional fuel pressure volume as the boost pressure increases. This unit is adjustable from 20-75 PSI, offers two fuel pressure slope settings and is recommended to be used in conjunction with any Holley High volume EFI fuel pump. All Fuel management units are produced from precision CNC machined billet aluminum and include detailed installation instructions.