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Street Race Truck More... The Toolbox

Fuel pressure regulators are a vital component of any fuel system. The purpose of the fuel pressure regulator is to control the fuel pressure being supplied to either the needle and seat (on a carburetor) or the injectors (on an EFI system). The fuel regulator maintains a set pressure to ensure your carburetor or fuel injectors have sufficient fuel supply to do their job. Too much or too little fuel can cause many problems, some of them are minor (poor idle quality) while others can be major (engine damage).

 

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Universal Fit, 4.5-9 Fuel Pressure Rating (psi), Steel

Fuel Pressure Rating (psi): 4.5-9

Material Type: Steel

Finish: Chrome

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Universal Fit, 4.5-9 Fuel Pressure Rating (psi)

On Sale

Fuel Pressure Rating (psi): 4.5-9

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Universal Fit, 5-12 Fuel Pressure Rating (psi)

Fuel Pressure Rating (psi): 5-12

Inlet Fitting: 3/8" NPT Female

Outlet Fitting: 3/8" NPT Female

Gauge Port: Yes

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$83.05
$84.86

Universal Fit, Gasoline Fuel Type

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New Product

Fuel Type: Gasoline

Fuel Pressure Rating (psi): 1-4

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Universal Fit, 3/8" Hose Barb Inlet Fitting

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On Sale
Video Available

Inlet Fitting: 3/8" Hose Barb

Outlet Fitting: Quick-Connect

Overall Length: 6.00"

Overall Height: 5.75"

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Universal Fit, 1-6 Fuel Pressure Rating (psi), Steel

Fuel Pressure Rating (psi): 1-6

Material Type: Steel

Finish: Chrome

Overall Height: 1.50"

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Universal Fit, 1-4 Fuel Pressure Rating (psi), Aluminum

On Sale

Fuel Pressure Rating (psi): 1-4

Material Type: Aluminum

Finish: Chrome

Overall Height: 1.91"

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Universal Fit, 4.5-9 Fuel Pressure Rating (psi)

Fuel Pressure Rating (psi): 4.5-9

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Universal Fit, -6 AN Male Inlet Fitting

Inlet Fitting: -6 AN Male

Outlet Fitting: -6 AN Male

Overall Length: 5.75"

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LS1

Video Available

Overall Length: 6.00"

Overall Height: 5.75"

Outside Diameter: 2.23"

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$43.35
$44.29

Universal Fit, 4.5-9 Fuel Pressure Rating (psi)

On Sale

Fuel Pressure Rating (psi): 4.5-9

Regulator Style: Return

Boost/Vacuum Reference Port: No

Gauge Port: No

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LS1, Gasoline Fuel Type, 3/8" Hose Barb Inlet Fitting

Fuel Type: Gasoline

Inlet Fitting: 3/8" Hose Barb

Outlet Fitting: 5/16" hose barb

Overall Length: 5.73"

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Universal Fit, 7-14 Fuel Pressure Rating (psi)

Fuel Pressure Rating (psi): 7-14

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Aluminum, Anodized

Material Type: Aluminum

Finish: Anodized

Overall Length: 3.88"

Overall Width: 1.88"

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$85.50
$87.36

Universal Fit, Gasoline Fuel Type

On Sale
New Product

Fuel Type: Gasoline

Fuel Pressure Rating (psi): 1-6

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$167.55
$169.55

Universal Fit, Gasoline Fuel Type, Aluminum

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On Sale
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Fuel Type: Gasoline

Fuel Pressure Rating (psi): 4-65

Material Type: Aluminum

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$119.99
$123.53

Universal Fit, Gasoline Fuel Type

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On Sale
New Product

Fuel Type: Gasoline

Fuel Pressure Rating (psi): 4.5-9

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$142.99
$144.97

Universal Fit, Gasoline Fuel Type

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On Sale
New Product

Fuel Type: Gasoline

Fuel Pressure Rating (psi): 4.5-9

Regulator Style: Adjustable

Fittings Included: Yes

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Universal Fit, Gasoline | Alcohol Fuel Type, Aluminum

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On Sale

Fuel Type: Gasoline | Alcohol

Fuel Pressure Rating (psi): 2-10

Material Type: Aluminum

Inlet Fitting: -8 AN

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Universal Fit, Gasoline Fuel Type, Aluminum, Anodized

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On Sale

Fuel Type: Gasoline

Fuel Pressure Rating (psi): 4.5-9

Regulator Style: Bypass

Material Type: Aluminum

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Universal Fit, Gasoline Fuel Type

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Fuel Type: Gasoline

Fuel Pressure Rating (psi): 3-60

Overall Height: 3.88"

Thread Pitch: 3/8" NPT

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Universal Fit, 1-4 Fuel Pressure Rating (psi), Chrome

On Sale

Fuel Pressure Rating (psi): 1-4

Finish: Chrome

Thread Pitch: 3/8" NPT

Pressure Regulator Style: Non-return

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Universal Fit, 30-70 Fuel Pressure Rating (psi)

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Fuel Pressure Rating (psi): 30-70

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Universal Fit, 4.5-9 Fuel Pressure Rating (psi)

On Sale

Fuel Pressure Rating (psi): 4.5-9

Regulator Style: Non-return

Boost/Vacuum Reference Port: No

Gauge Port: No

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$37.33
$38.14

Universal Fit, 1-6 Fuel Pressure Rating (psi)

On Sale

Fuel Pressure Rating (psi): 1-6

Regulator Style: Non-return

Boost/Vacuum Reference Port: No

Gauge Port: No

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Universal Fit, 4.5-9 Fuel Pressure Rating (psi)

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On Sale

Fuel Pressure Rating (psi): 4.5-9

Inlet Fitting: 1/2" NPT Male to -8 AN Male

Outlet Fitting: 1/2" NPT Male to -6 AN Male

Fittings Included: Yes

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Universal Fit, Gasoline Fuel Type, Aluminum, Anodized

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On Sale

Fuel Type: Gasoline

Fuel Pressure Rating (psi): 4.5-9

Material Type: Aluminum

Finish: Anodized

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The fuel pressure regulator is located on the supply side of the fuel system, immediately upstream of the carburetor or downstream of the fuel injectors. Stock/OEM regulators often have a fixed pressure setting, while most aftermarket regulators are adjustable by design. Adjustable regulators allow the user to set the fuel pressure based on their unique combination of components and application. 

 

Pressure regulators also provide the benefit of consistent fuel pressure under severe load and/or RPM. Under wide-open-throttle situations, the engine requires more fuel than it does at idle. Some regulators use a vacuum signal to "see" this additional load and provide the proper ratio needed for the conditions. This is even more important on boosted or nitrous engines that need additional fuel volume to minimize the chance of detonation. No matter which fuel pump you choose, know that all electric fuel pumps will require a regulator, while most mechanical fuel pumps won’t require a regulator.

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