HOLLEY Fuel Regulator Rod

( Brand: Holley ), ( Manufacturer Part Number: 34R115778 ), ( Type: Carburetor )

Review HOLLEY Adjustable Fuel Regulator 34r115778-racing-dirt-lucas-woo-rat Rod

The Holley 34r115778 Fuel Regulator is a high-performance fuel pressure regulator designed for racing applications in dirt, Lucas Oil Off-Road Racing Series, and rat rod projects. This regulator is part of Holley's line of racing fuel systems, which are known for their durability, precision, and ability to deliver consistent fuel pressure.

The 34r115778 Fuel Regulator features a robust, anodized aluminum housing that can withstand the rigors of off-road racing. It has a 1/8 NPT inlet and a 1/4 NPT outlet, which makes it compatible with various fuel lines and systems. The regulator is adjustable from 0 to 25 psi, allowing users to fine-tune the fuel pressure to meet the specific requirements of their engine and racing application.

One of the key features of the 34r115778 Fuel Regulator is its adjustable pressure relief valve. This valve helps prevent fuel pressure spikes and allows excess fuel pressure to be safely vented back to the fuel tank. The valve can be easily adjusted using a flathead screwdriver, making it a convenient and user-friendly option for racers and hobbyists.

Another important feature of this fuel regulator is its precision-machined internals. The internal components are made from high-quality materials and are designed to provide accurate and consistent fuel pressure readings. The regulator also has a high-flow, 1/4 turn fuel pressure gauge, which allows users to quickly and easily monitor fuel pressure.

The 34r115778 Fuel Regulator is designed to meet the demanding requirements of off-road racing and other high-performance applications. It is built to last and can handle the extreme temperatures, vibrations, and fuel conditions that are common in racing environments. Whether you're building a custom dirt racing machine or restoring a rat rod, this fuel regulator is an essential component that will help ensure reliable and consistent fuel delivery to your engine.

In summary, the Holley 34r115778 Fuel Regulator is a high-performance, adjustable fuel pressure regulator designed for racing applications in dirt, Lucas Oil Off-Road Racing Series, and rat rod projects. It features a durable, anodized aluminum housing, adjustable pressure relief valve, precision-machined internals, and a high-flow, 1/4 turn fuel pressure gauge. With its ability to deliver consistent fuel pressure and withstand the rigors of off-road racing, this fuel regulator is an essential tool for any racer or hobbyist looking to build a high-performance vehicle.

The Holley 34r115778 fuel regulator is a popular choice among racers, dirt track enthusiasts, and hot rod builders due to its durability and high-performance capabilities. Here are some pros and cons of buying this fuel regulator:

1. High-performance: The Holley 34r115778 fuel regulator is designed to deliver consistent fuel pressure, making it an excellent choice for high-performance applications.

2. Durability: The regulator is built to withstand the rigors of racing and off-road use. It features a robust design with heavy-duty materials, ensuring long-lasting performance.

3. Adjustability: The fuel regulator comes with a built-in adjustable pressure relief valve, allowing users to fine-tune the fuel pressure to their specific application.

4. Compatibility: The Holley 34r115778 fuel regulator is compatible with various fuel systems, including Lucas Oil WOO and other race fuels.

1. Cost: The Holley 34r115778 fuel regulator is more expensive than some other fuel regulators on the market.

2. Complexity: The fuel regulator may be more complex than some other options, requiring more installation time and effort.

3. Size: The fuel regulator is larger than some other options, which may make it less ideal for applications with limited space.

The Holley 34r115778 fuel regulator is a high-performance, durable, and adjustable option for racers, dirt track enthusiasts, and hot rod builders. Although it comes with a higher cost and may be more complex to install compared to other options, its consistent fuel pressure delivery and compatibility with various fuel systems make it a worthwhile investment for those who demand the best performance from their vehicles.

If you're looking for a high-performance fuel regulator for your racing or off-road vehicle and are willing to invest in a more expensive and complex option, the Holley 34r115778 fuel regulator is an excellent choice. Its durability, adjustability, and compatibility with various fuel systems make it a top pick for those who require consistent fuel pressure and reliable performance. However, if you're on a tighter budget or have limited installation space, you may want to consider other, more affordable and compact fuel regulator options.

Details:

PREOWNED HOLLEY # 34R115778 ADJUSTABLE FUEL REGULATOR WITH 1 4 AN MALE FITTING, 2 8 FITTINGS AND BRACKET.

part #: 34r115778 price

• $48.00

specifications carbcoon:

• brand: Holley
• mpn: 34r115778
• type: Carburetor

offer carbcoon:

• options: Ship-to-home
• sold: 0
• started: November 12, 2025
• best offers: True
• availability: In Stock
• quantity: 1

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shipping carbcoon:

• cost: $12.80
• transit: 3-8 Days
• class: Standard
• type: Calculated
• carrier: USPS
• service: USPS Ground Advantage

returns carbcoon:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

seller carbcoon:

• # reviews: 2135
• rating: 100.0%
• city: Bloomington, Illinois

general carbcoon:

• Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
• condition: Used

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