Turbosmart - FPR800 Fuel Pressure Regulator Suit 1/8 NPT

TurbosmartSKU: TS-0401-1102

Sale price$178.95

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Turbosmart - FPR800 Fuel Pressure Regulator Suit 1/8 NPT

The FPR800 fuel pressure regulator from Turbosmart is a well-tested choice for high-performance motorsports, handling fuel systems up to 800HP. Featuring a Stainless Steel valve and seat, MILSPEC diaphragm, and unparalleled 1:1 fuel ratio control, the FPR800 is designed to withstand even the most demanding environments. It is available in Black, Blue, Red, and Purple, and is suitable for both racing and modified street cars.

This fuel pressure regulator from Turbosmart has two 1/8″ NPT inlet ports, one 1/8″ NPT return port, and a 1/8″ gauge port. It allows for a base pressure adjustment of 30-90 PSI and has a 1:1 ratio. Its premium MILSPEC diaphragm and stainless steel valve + seat make it suitable for use with any type of fuel, including E85, and it can handle up to 800hp fuel systems. Additionally, the FPR's non-directional bias ensures consistent regulation of fuel regardless of where it enters the regulator.

EFI fuel regulator 
3 x 1/8″ NPT ports
1/8″ NPT Gauge port  
Capable of regulating up to 800hp of fuel flow 
1:1 manifold pressure ratio with no load losses 
30-90psi base pressure range 
Stainless steel internals providing maximum integrity and reliability 
Suitable for all fuel types 
Operational between -35ºC to +200ºC 
MILSPEC diaphragm 
Reference port is 1/16 NPT with hose end nipple supplied
Manufactured, Assembled and Validated in-house at Turbosmart HQ

 warning WARNING - Proposition 65 Compliance Statement:

It is the responsibility of Turbosmart to warn its customers and employees that some products sold on this website contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

warning Important Emissions Note:

This product does not have a CARB EO #; it is not legal for sale or use in CA on pollution controlled motor vehicles. This is intended as a "Race Only" product to be used solely for competition. It's use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization; any other use including recreational off-road use, may be a violation of local, state and federal laws. It is the buyer's responsibility to verify legal use of this product for the intended application and use.


Fuel Pressure Regulator
Mounting bracket
Retaining clip
Vacuum fitting
Gauge port blank
Turbosmart Decal

Why buy a Turbosmart Fuel Pressure Regulator?
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. 

What is a Fuel Pressure Regulator? 
A fuel pressure regulator’s job is to maintain constant fuel pressure above the intake manifold pressure. Most commonly fitted to the Fuel rail as injectors require a greater feed pressure than inlet manifold pressure, in order to provide adequate fuel spray for fuel injected vehicles.

When do I need to Install one? Or upgrade my factory one?
The installation of performance fuel injectors or a high-flow fuel pump requires the use of an aftermarket fuel pressure regulator to allow pressure adjustments while maintaining a stable base pressure. They can also be used to maximise a standard fuel system’s ability to cope with minor power modifications.

What does FPR800, or 1200 mean?
Turbosmart Fuel Pressure Regulators are not rated for your target engine horsepower - Rather, they are rated based on your fuel system capability. The capacity of a Fuel Pressure Regulator is put ot the test when you need to bypass fual back to the tank, ratehr than use it. So it's not how much HP your engine makes - IT's how much suply your pump & fuel system has that could need to be returned to the tank under situations likes declaration or at idle

Will Turbosmart FPR work on a Semi Dead-Head System?
Yes. The Turbosmart FPR range is a regulator and it doesn't matter where you fit it, it will accurately regulate the pressure of the fuel circuit, no matter where on the car you have installed it.

Can These handle Race Fuel?
Yes. With Turbosmart's Unique Diaphragm, stainless salve and seat we've designed, proven and validated these regulators with the harshest types of fuels around, including Methanol, Lead Race Fuel and E85.

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