Turbosmart Boost Gauge Mnt Cup 52mm
Raceworks Adjustable EFI Fuel Pressure Regulator 700HP 3-Port -6AN Black
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Raceworks Adjustable EFI Fuel Pressure Regulator 700HP - FPR-501BK
The Raceworks FPR-501BK is a fully adjustable, boost-referenced EFI fuel pressure regulator for upgraded and performance fuel systems. Machined from high-grade 6061-T6 billet aluminium, its three-port layout can be used in flow-through or dead-head plumbing arrangements and supports applications up to 700 hp.
Two AN-6 inlet ports and an AN-6 return provide flexible fuel-line routing. Base pressure is adjustable from 40 to 75 psi (2.75 to 5.2 bar), while the 1:1 rising-rate reference maintains fuel pressure in step with boost. It is compatible with E85 and pump fuel and has a rated bypass flow of 550 LPH.
Features
- Supports fuel systems up to 700 hp
- High-grade 6061-T6 billet aluminium construction
- Fully adjustable 40–75 psi base-pressure range
- Boost referenced with a 1:1 rising rate
- Two AN-6 inlet ports and one AN-6 return port
- 1/8-inch NPT gauge port
- 1/16-inch NPT boost-reference port
- Compatible with E85 and pump fuel
- 550 LPH bypass-flow rating
- Mounting bracket and screws supplied
- Universal application
Specifications
| Part number | FPR-501BK |
|---|---|
| Maximum supported power | 700 hp |
| Fuel inlet ports | 2 × AN-6 |
| Fuel return port | AN-6 |
| Gauge port | 1/8-inch NPT |
| Boost-reference port | 1/16-inch NPT |
| Base-pressure range | 40–75 psi (2.75–5.2 bar) |
| Rising rate | 1:1 |
| Bypass rate | 550 LPH |
| Fuel compatibility | E85 and pump fuel |
| Dimensions | 94 mm high × 62 mm wide × 60 mm deep, excluding fittings |
| Fitment | Universal |
Installation Notes
Fuel-system installation should be completed by a suitably qualified person. Select compatible AN-6 hose ends and fittings for the chosen plumbing layout, mount the regulator securely, connect the boost-reference line, then set and verify base pressure with an appropriate gauge. Thoroughly inspect the system for leaks before operation.
| Product Name | Raceworks Adjustable EFI Fuel Pressure Regulator 700HP 3-Port -6AN Black |
|---|---|
| Brands | Raceworks |
Delivery & Freight
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What base-pressure range does the FPR-501BK provide?
It is adjustable from 40 to 75 psi, equivalent to 2.75 to 5.2 bar.
What fuel-line ports does this regulator use?
It has two AN-6 inlet ports and one AN-6 return port, plus a 1/8-inch NPT gauge port.
Is the Raceworks FPR-501BK boost referenced?
Yes. It uses a 1:1 rising rate and has a 1/16-inch NPT boost-reference port.
Can it be used with E85?
Yes. Raceworks specifies compatibility with both E85 and pump fuel.
What is included with the regulator?
The source specifies that a mounting bracket and screws are supplied. Fuel fittings, hoses and a pressure gauge are not stated as included.