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Fuel Pressure Regulator - 3.0 Bar - Screw fit hose type

Brand: 9Republik  |  Product Code: FPR30PT  |  Weight: 0.5kg  |  

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The famous modified 944 Turbo 3.0 Bar fuel pressure regulator.

*** This product should be available later this year having passed its long term trials with flying colours ***

This part was never available from Bosch, Porsche or even the tuners that supplied 3.0 Bar fuel pressure regulators as part of their tuning kits, as a 3.0 Bar fuel pressure regulator of this type, with a screw fitting for the return line, as used on the late 1988 onwards 944 Turbos was never made. We talked the original manufacturer of the push on hose type units to make these with the correct fittings!

Over the years many different tuners found that as part of their performance chip packages the standard fuel injectors, fed with 2.5 Bar of fuel pressure from the standard fuel pressure regulator would not provide enough fuel for the increased performance.
Therefore, many performance chip companies provided a replacement 3.0 Bar fuel pressure regulator, to increase the fuel flow to the injectors and provide more fuel per second and therefore increase the performance limits of the original system.
This fuel pressure regulator is compatible with the following 944 Turbo tuning packages.

  • 9Republik Performance chips
  • 9XX Performance chips
  • RogueTuning MAF kits
  • RogueTuning MAF and MAP kits
  • Lindsay Racing Chips, MAF and MAF with MAP kits
  • Promax Tuning kits
  • Guru Racing chip kits

This fuel pressure regulator is not required for other Porsche models, only the 944 Turbo.

This fuel pressure regulator is the correct part for the following models.

Model Years
Porsche 944 Turbo - Modified 1986 - 1987
Porsche 944  Turbo - Modified 1988 - 1992

The specification for this part is as follows.
Static Fuel Pressure Fuel rail mounting type Fuel return hose fitting
3.0 Bar  with two mounting bolts Screw fitting fuel hose

Please note, during 1988 the fuel return hose type on this model changed from being a push on hose, secured with a hose clamp (jubilee clip) to one which was connected with a screw on hose fitting. This fuel pressure regulator is designed for this type of fuel return hose.
To use this on a modified 944 Turbo made before 1988 you would need the later type fuel hose.

This part is compatible with the following part numbers.
Bosch Part Number Porsche Part Number 9Republik Part Number
Was never made by Bosch  Was never made by Porsche!  FPR30PT

The benefits of this part are.
  • Evolution - Unlike the original part, this item has benefited from continued improvements.
  • Modern components - This part is ethanol friendly, for use with modern fuels containing ethanol.
  • High quality materials - This part is made to a quality level, not down to a price point.
  • Guarantee - This part has a full two year return to base guarantee (As you would get from Porsche).
  • Quality control - This part has been tested in the 9XX fuel lab on a Bosch approved fuel test machine to be within specifications as laid out by Bosch and Porsche.
  • Environmental plating - The original Bosch yellow plating process uses chemical processes now outlawed in Europe, this parts major cosmetic difference is not being plated using this process.
  • Standard looking part - Other than using the silver coloured plating process rather than yellow, this part has been designed to look as close to the original Bosch part as possible without breaching patents with Bosch or Porsche.
Fuel pressure regulators can fail in a number of ways with various symptoms including.
  • Poor fuel economy (gas mileage or miles per gallon / MPG)
  • Loss of performance
  • Hesitation
  • Misfires
  • High exhaust emissions (potentially failing your local roadworthy tests)
  • Exhaust smoke
We recommend that if you are suffering from any of these symptoms, that you have your fuel pressure checked by a competent garage, however, fuel pressure regulators do also have a finite lifespan as they contain rubber components which degrade with age. Therefore if your fuel pressure regulator is over 5 years old it may require replacement. If it is over 10 years old, it certainly is in need of replacement.

Important notice.
9-Republik only develop products in response to a need or gap in the market place.
Due to Bosch discontinuing manufacture of this part, along with the subsequent move by Porsche Classic to buy all available stock from Bosch, 9-Republik found that the only available fuel pressure regulators for the Porsche 924S, 944 and 968 Models were either ones in stock at Porsche, with limited availability at £260 plus local taxes, or very poor quality items originating in China but sold by several companies around the globe hinting at their origins being outside of China (such as Italy for example), which seem to be very poorly made, suffer from incorrect fuel pressure regulation. It is feared that they may leak fuel and become a fire hazard.
We have contacted one major Italian parts brand about the irregularity of their product, and they refused to comment or confirm the parts were made in Europe.

One tell tale sign of the cheap Chinese fuel pressure regulators is the design of where the vacuum hose pushes onto the regulator. A Bosch, Porsche or 9-Republik Part has a swollen area at the end of the fitting, known as a barb, flare or rolled edge to help secure the vacuum hose, the Chinese parts only have a flat cut off tube fitting.

9-Republik Developed their range of fuel pressure regulators as a high quality alternative to the cheap Chinese parts, with no regard to price, but only to quality, which result in a part which we believe is even better than the original Bosch parts, as sold by Porsche.

Here are some close up views of the correct vacuum hose port design, as found on our 9-Republik fuel pressure regulators.

9XX Fuel pressure regulator vacuum port, same as Bosch/Porsche design.
As you can see, the 9-Republik Part has a correctly formed vacuum port, which is a detail missed by the cheap Chinese copies.
In contrast, in the following photo we have one of the Chinese low cost parts.

Notice how the cheap Chinese part does not have the correctly formed fitting for the vacuum hose to connect to, with no swollen lip to help retain the hose. This is not just a small detail, but the acid test of a quality fuel pressure regulator.
Also notice the Chinese part is plated in yellow plating, which tends to use a process now outlawed in Europe and many countries around the world due to the chemicals involved being harmful to the environment.

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