Aftermarket Fuel Pressure Regulator
Single & Dual Feed Setup
Single Feed Setup
This is your basic fuel setup for an aftermarket fuel pressure regulator. This guide assumes you will be using AN Fittings and braided hose, however it is not required. The brands and fittings here are used as representation of an ideal setup. This setup is a copy of the MBXMotorsports kits that sold in the early 2000’s, with the exception of a fuel rail adapter fitting. Due to lack of support for these engines, finding a fuel rail adapter fitting may prove impossible. An alternative to the fuel rail adapter is drilling out the end of your fuel rail where the stock fuel pressure regulator connects to, then tapping it with a 1/4 NPT Tap. This is an effective and viable solution, but will require a 1/4 NPT Tap and care while doing the modification.
Below is the list of items you will need for this setup. Substitute preferred brands and hose ends as needed for your application.
| Part # | Description | Qty |
| AEI-13129 | Fuel Pressure Regulator, 30-70 psi | 1 |
| AEI-15606 | Straight, Male -6 AN to Straight Cut Male -6 AN O-Ring, Aluminum | 2 |
| EAR-100187ERL | Gauge, Analog, Fuel Pressure, 0-100 psi, 1 1/2 in. Diameter, White Face, Liquid-filled, 1/8 NPT | 1 |
| EAR-AT981606ERL | Fitting, Straight, -6 AN Male to 1/4 in. NPT Male, Aluminum | 1 |
| HPF-85606 | -6AN in to -6AN Out Y Block | 1 |
| EAR-991945ERL | Fitting, Carburetor Inlet, -6 AN Male to 12mm x 1.25 Male, Aluminum | 3 |
| EAR-809106ERL | Fitting, Hose End, Swivel-Seal, 90 Degree, -6 AN Hose to Female -6 AN, Aluminum | 3 |
| EAR-800106ERL | Fitting, Hose End, Swivel-Seal, Straight, -6 AN Hose to Female -6 AN, Aluminum | 5 |
| EAR-310006ERL | Hose, Auto-Flex, Braided Stainless Steel, -6 AN, 10 ft. Length | 1 |
| RUS-650133 | Fuel Filter, Competition, -6 AN Male In/Out, 3.000 in. Long, 1.250 in. Diameter | 1 |
| EAR-AT581406ERL | Fitting, Plug, -6 AN O-Ring, Male Thread, Aluminum | 1 |
Dual Feed Setup
This is your best fuel setup for an aftermarket fuel pressure regulator. This guide assumes you will be using AN Fittings and braided hose, however it is not required. The brands and fittings here are used as representation of an ideal setup. This setup is a copy of the MBXMotorsports kits that sold in the early 2000’s, with the exception of a fuel rail adapter fitting. Due to lack of support for these engines, finding a fuel rail adapter fitting may prove impossible. An alternative to the fuel rail adapter is drilling out the end of your fuel rail where the stock fuel pressure regulator connects to, then tapping it with a 1/4 NPT Tap. This is an effective and viable solution, but will require a 1/4 NPT Tap and care while doing the modification.
Below is the list of items you will need for this setup. Substitute preferred brands and hose ends as needed for your application.
| Part # | Description | Qty |
| AEI-13129 | Fuel Pressure Regulator, 30-70 psi | 1 |
| AEI-15606 | Straight, Male -6 AN to Straight Cut Male -6 AN O-Ring, Aluminum | 3 |
| EAR-100187ERL | Gauge, Analog, Fuel Pressure, 0-100 psi, 1 1/2 in. Diameter, White Face, Liquid-filled, 1/8 NPT | 1 |
| EAR-AT981606ERL | Fitting, Straight, -6 AN Male to 1/4 in. NPT Male, Aluminum | 1 |
| HPF-85606 | -6AN in to -6AN Out Y Block | 1 |
| EAR-991945ERL | Fitting, Carburetor Inlet, -6 AN Male to 12mm x 1.25 Male, Aluminum | 3 |
| EAR-809106ERL | Fitting, Hose End, Swivel-Seal, 90 Degree, -6 AN Hose to Female -6 AN, Aluminum | 3 |
| EAR-800106ERL | Fitting, Hose End, Swivel-Seal, Straight, -6 AN Hose to Female -6 AN, Aluminum | 8 |
| EAR-310006ERL | Hose, Auto-Flex, Braided Stainless Steel, -6 AN, 10 ft. Length | 1 |
| RUS-650133 | Fuel Filter, Competition, -6 AN Male In/Out, 3.000 in. Long, 1.250 in. Diameter | 1 |
