PSR/Raceworks Parallel Fuel Rail Kit Bottom FPD Port PSR-RWH-237

Item: PSR/Raceworks Parallel Fuel Rail Kit Suit 1/8" NPT FPR w/Radium Fuel Rails and Teflon HosePSR-RWH-237

Raceworks is a range of High Performance Air, Fuel, and Fluid Management Components.

Raceworks products are manufactured from premium quality materials to ensure the highest specifications and industry standards are surpassed.

Raceworks components include fuel pumps, silicone hoses, fuel rails, aluminium fittings, performance hose, fuel injectors, sensors, connectors and supporting hardware.

Raceworks is available through a network of specialised resellers and leading automotive retail groups who have a passion for performance.

Pro Speed Racing now offer fuel rail packages including Radium Engineering top-feed fuel rails and quality Raceworks hoses and fittings. This kit can suit any Twin Inlet 1/8" NPT Fuel Pressure Regulator including the Turbosmart FPR800 and GFB FX-S.

Manufactured with a large internal bore, the fuel rails can support all necessary engine power requirements. They are CNC machined from solid 6061 aluminum, black anodized, and laser etched for a high quality surface finish.

These fuel rails are designed specifically for OEM or equivalent fitment injectors. For injector height flexibility and thermal insulation, 2 sets of machined phenolic spacers are included. All injectors must use 11mm diameter upper O-rings just like the OEM Subaru injectors. Reference instruction manual for more information.

The fuel rails are compatible with all fuel types including popular alcohol mixtures such as E85.

Radium fuel rails include a port for an aftermarket fuel pulse dampener (sold separately). The opening and closing of fuel injectors creates pressure pulses in the fuel rail which can lead to unstable fuel pressure. In order to achieve a safe and consistent rail pressure, a fuel pulse damper (FPD) is often necessary. The FPD's internal diaphragm will absorb oscillating pulses and stabilize fuel pressure. This correction can be measured throughout the RPM range and can often help idle surge, especially with high flow injectors. Furthermore, a fuel pulse damper can help solve erratic lean air/fuel ratio spikes, commonly experienced as "stumbling", that are difficult to tune out. 

For more in-depth information on the function of fuel pulse dampers, read the Radium blog HERE.

This kit incorporates the Raceworks 200-Series E85 safe braided hose in either stainless steel braid or black braid. Raceworks 200 Series Teflon Braided Hose is constructed from a PTFE (Teflon) inner tube that is compatible with all fuels, oils, nitrous including brake and clutch fluids. The PTFE (Teflon) tube is covered by a stainless steel outer cover that is durable, and resistant to abrasion and expansion. The Raceworks 200 Series Hose is the best option for use on fuel systems as it won’t allow the permeation of fuel smell, and has the highest pressure and temperature rating in the range of Raceworks hoses.

Raceworks 200/220 Series Hose Ends are all manufactured from 6061 T6 grade billet aluminium. All Raceworks hose ends are hardcoat anodised for maximum protection, and full flow to provide uninhibited fluid movement. Female swivel hose end ensures ease of fitment once 200 Series Hose has been connected. All Raceworks products come with a 2 year warranty.

Fuel Pressure Regulator Options:

GFB FX-S -

Whether you run pump petrol/gasoline, Ethanol, Methanol or Diesel, a single small pump or a massive triple setup, the GFB FX range has you covered no matter what your Fuel Pressure Regulator requirements are. What sets us apart from the competition? Well, if you’re looking for an EFI Fuel Pressure Regulator that seals and behaves just like your factory unit but with the added reliability and high flowing capacity you require, then look no further than the FX range.

How have we achieved this? Our engineers have spent countless hours developing a unique replaceable co-polymer valve seat. What does this mean? Conventional aftermarket performance Fuel Pressure Regulators typically utilize a metal-to-metal valve and seat which by nature will not positively hold pressure when your engine is shut down, which can make startup more difficult. Here at GFB, we have incorporated a softer, more compliant yet resilient material for the valve seat, which will always positively seal and hold fuel pressure on shut down, designed to give factory-like sealing and reliable startup, as well as superior fuel resistance suitable for Unleaded, Ethanol, Methanol, and Diesel fuels.

We also use a double layer diaphragm, which means we have twice the reinforcing material, and as a result the burst strength exceeds 1000psi! The multiple inlet/gauge ports also allow for a wide range of fuel system setups beyond the usual inlet/outlet, including parallel fuel rail or returnless “deadhead” systems. The two gauge ports allow you to run a mechanical fuel pressure gauge AND an ECU fuel pressure sensor if you want to.

Turbosmart FPR800 -

Turbosmart's newest High-performance EFI fuel pressure regulator is smaller, lighter and better! Now featuring two 1/8" NPT inlet ports, one 1/8" NPT return port and 1/8" gauge port, 30-90 PSI base pressure adjustment, 1:1 ratio, premium diaphragm and stainless steel valve seat allow for ANY fuel type including E85 and is suitable for engines with up to 800hp fuel systems. FPR's feature a non-directional bias to regulation, so no matter where the fuel comes in they will regulate the same. Factory tested.

All Turbosmart FPRs are CNC machined in house from billet aluminium stainless steel and hand-assembled and tested to ensure maximum precision. Turbosmart FPR’s have been designed to provide smooth and stable fuel pressure delivery under all conditions from idle to full throttle and are suitable for use with both electric and mechanical fuel pumps. The FPR range features an easy screw and lock adjustment and provide a stable 1:1 ratio between fuel pressure and manifold pressure. Each FPR is backed by a variety of accessories such as fuel rail adapters, gauges and fittings to suit most popular makes and models.

Important Notes:

• Picture shows rough plumbing layout only. Actual layout will depend on engine bay components and personal taste.
• Picture shows assembled hoses/fittings, kit includes unassembled hose and fittings which will require cutting and assembling. Additional tools/supplies may be required. This allows user to decide optimal hose lengths and routing.
• This kit is designed to adapt to SAE Quick Connect EFI fittings only. Please check engine bay feed/return lines and compare with the second photo on listing to determine compatibility.
• EJ207 and JDM EJ205 engines that have early AVCS solenoids with vertical connectors (pictured) will require the Radium rails with the top port FPD port.
• The Radium Fuel Rails include 8AN O-Ring ports to mount FPD (fuel pulse dampener). If not running an FPD two 8AN ORB plugs will need to be purchased separately.

Hose Specifications:

• Operating Pressure: 3000psi
• Burst Pressure: 10000psi   
• Inside DIA. Inch: 5/16”
• Inside DIA. MM: 7.9mm
• Outside DIA. Inch: 15/32”  
• Outside DIA. MM: 11.8mm
• Weight Grams per Metre: 139g 
• Bend Radius Inch: 1.30"
• Bend Radius MM: 33mm

Kit Includes:

• Fuel Pressure Regulator (if selected)
• Radium Engineering Fuel Rails
• 3 Metres Raceworks 200 Series Teflon Hose
• Raceworks 200 Series Hose Ends
• Raceworks Y-Block Fitting
• Raceworks Male AN ORB to Male AN Flare Fittings
• Raceworks SAE Quick Connect EFI to AN Flare Fittings

Vehicle Fitment:

Suits below vehicles with 5/16" SAE Quick Connect Feed/Return lines, aftermarket fuel rails (6AN Male Flare or 8AN Female ORB) and aftermarket Fuel Pressure Regulator (Twin 1/8" NPT Inlet, Single 1/8" NPT Outlet):

• 2001-2014 Subaru WRX EJ20/EJ25
• 2001-2019 Subaru STI EJ20/EJ25
• 2003-2013 Subaru Forester XT EJ20/EJ25
• 2004-2012 Subaru Liberty GT EJ20/EJ25