 |
|
Home > Fuel Systems > Fuel Regulators
Fuel Regulators
|
 |
|
Vortech Rising Rate Fuel Regulators
The Vortech Fuel Management Unit is designed for use on multi point electronic fuel injected engines. It is a secondary fuel regulator which installs in series with a stock regulator on the return line to the fuel tank. The unit increases fuel pressure in proportion to boost pressure. There are several different ratings of FMU with rising rates in the order of 6:1, 8:1 and 10:1 being available for demanding fuelling conditions.
It is important that the rest of your fuel system including your fuel pump and the condition of the fuel lines are up to the increased demand of your FMU.
FMU Operating Description
In Summary, the FMU backs up line pressure at the given rate for this example 10:1, therefore if the original regulator still in place holds a rail pressure of 40psi, it will take 4psi of boost for the FMU to raise pressure to 40psi. At this point there still will be no effect at the rail pressure simply because most factory regulators also raise fuel pressure at 1lbs of fuel pressure per 1lbs of boost. So you would have 44 lbs in the fuel rail and 40 psi between the FMU and the original Reg. But at 5lbs of boost you would then have 50psi held by the FMU thus raising the rail pressure by 5psi. Then at 6lbs of boost you would have 60lbs at the FMU and 46lbs held by the original reg, thus raising the fuel pressure by 14psi. This process will increase as boost increases. CAPA does not recommend running fuel pressure any higher than 90psi. Precautions must be taken to ensure that all fuel system components are capable of operating at these high pressures. |
 |
 |
|
Vortech Spring Loaded FMU
Vortech's spring loaded FMU also consists of a pre tensioned spring to raise fuel pressure instantly with boost to fill a void at low boost. It is ideal when vehicles require extra fuel at around 0-2 psi of boost which the standard FMU is sometimes unable to provide. Standard FMUs can also be retrofitted with the lid and spring assembly. |
|
|
|
Vortech Super FMU
Vortech's Super Fuel Management Unit (Super FMU) us a tuner's dream. It permits complete tailoring of the fuel pressure curve relative to manifold pressure, including upper and lower limits.
The Super FMU can be used in a series or as a stand alone component. Its super high-flow capacity can handle large single and dual pumps while fluctuation and pressure creep is eliminated. The unit can also be used to adjust static pressure. Features include four pre-calibrated gain ratios: 7:1, 5:1, 3.25:1 and 2.5:1.
Easily replaces our standard non-adjustable FMU.
Click here to view the fuel pressure chart. |
|
 |
|
Vortech Rising Rate Fuel Regulator Minor repair kit |
|
| |
|
Paxton Fuel Pressure Regulators
The importance of fuel pressure regulators cannot be over emphasised. Many a high dollar fuel system has been sabotaged by the use of an inferior quality pressure regulator, or one that was just not suited to the task. Paxton have devoted considerable time to the development of a wide range of regulators, one of which is guaranteed to fit your application.
Paxton fuel pressure regulators feature an adjustment range of approximately 25-80 PSIG. Each unit is machined from 6061 T-6 billet aluminum and has a blue anodized finish. A vacuum/pressure port allows for a 1:1 gain when used in boosted applications.
|
|
 |
|
Fuel Pressure Regulator, ‘94-‘97 Ford Mustang, direct replacement
|
|
 |
|
Fuel Pressure Regulator, ‘86-‘93 Ford Mustang, rail-mount, direct replacement |
|
|
|
SX Performance™ Fuel Pressure Regulators
For Drag Race, Circle Track, and Marine Use.*
The SX Performance™ Series of Fuel Pressure Regulators allow maximum tuning flexibility with absolute minimum flow restriction for engines up to and exceeding 1,400 HP. Our regulators' advanced bypass technology and enlarged port design provides rock steady fuel pressure control from idle to full throttle and enables our fuel pump to push more fuel, increase horsepower, run cooler, draw less current and always meet fuel volume demands with no pressure creep!
All SX Performance™ Fuel Pressure Regulators are laboratory tested and are perfectly compatible with gasoline and methanol. Each is meticulously machined from 6061-T651 Aircraft-Grade Aluminium Alloy and protected with Military Specification MIL-A-8625 Type II Anodize.
- Field Serviceable: Full rebuild kits available (although it's a rare sale)
- Each regulator comes with a vacuum/boost fitting to reference to the intake manifold pressure.
- We use Fluorosilicone diaphragm material, formally used only on aerospace components. This material is capable of long life (longer than competitor's Nitrile or rubber based "cheap" diaphragms), and has a high resistance to chemical attack. Compatible with fuel or methanol.
- Light weight diaphragm allows the regulator to act as an accumulator. Not only does this feature help prevent system chatter and noise, but also acts as a pulsation dampener, to help maintain consistent fuel pressure.
- Each regulator comes with instructions, o-rings, hardware, and mounting bracket.
|
|
Model 15402
Model 15404
|
|
SX EFI Adjustable Fuel Pressure Regulators Models 15402 and 15404
- Provides pressure adjustability from 35 to 90 PSI. The model 15402 has -10 inlets and a 1/8” NPT gage port. The 15404 has -6 inlets but with a shorter body height for easier installation. Both provide the same flow performance with approximately a 1 to 1 boost ratio.
- Maintains stable fuel system pressure between 35-90 psi for tuned flow rate flexibility up to 180 GPH (1,100 PPH)
- Features a vacuum/boost compensating port for a supercharger, turbo or intake manifold vacuum connection.
- Innovative design eliminates engine heat soak conditions: holds a minimum fuel system pressure of 25 psi for at least 20 minutes after pump shut down.
- Available in models 15402 (-10 AN inlets with gauge port) and 15404 (-6 AN inlets without gauge port).
- Adjustable Range: 35-90 PSI (relative to vacuum port reference)
- Pressure Regulation Slope: 3 psi/gal of flow rate change
- Either model of regulator is capable of supporting two SX Performance™ fuel pumps. This means that each SX Performance™ regulator can handle horsepower into the 1400 HP mark.
15402 Performance Graph, Rail Pressure vs Flow. |
|
Model 15408 |
|
SX Model 15408 Carburetted Adjustable Fuel Pressure Regulator
The newest addition to the reliable SX Performance™ family. This bypass, or return style regulator, has a design feature that gives it an absolute no pressure creep property. This “no pressure creep” ability makes the regulator perfect for nitrous oxide fuel solenoid valves.
- Adjustment Range: 5-10 PSI (relative to boost reference pressure).
- Pressure Regulation Slope: .75 psi/gal of flow rate change
- Available with a Boost Reference Fitting, for "blow-through" or pressurized carburettor applications, even beyond 30 psi of boost.
- Relief style valve (1/2" return line required) prevents pressure "creep".
- Can be used with one SX Performance™ pump only. They can support up to 1,300 HP using gasoline, or up to 650 HP using Methanol.
- With a single relief style regulator, fuel pressure is set with a much higher degree of consistency. No longer is a drive around the block required to ensure that the fuel pressure is correct. Fuel pressure can even be set without the engine running.
- Has a total of 6 -6 inlet/outlet ports, 1 -6 return port and one gauge port. Since this valve is a relief style valve, the inlet ports and the outlet ports are interchangeable.
- Valve can be used with low pressure nitrous oxide systems for fuel delivery. Since this valve is relief style, pressure no longer creeps, making it ideal for consistent setting, run after run.
15408 Performance Graph, Pressure vs Flow. |
|
|
