Fuelab 515 Series Carbureted Adjustable Fuel Pressure Regulator 4-12 PSI — Universal Performance Fuel System

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SKU: FLB51504-1
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Fuelab

Fuelab engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Fuelab lineup with fast shipping and expert fitment support — order with confidence.

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Consistent Fuel Delivery for Carbureted Engines

Achieve precise fuel pressure management with the Fuelab 515 Series Carbureted Adjustable Fuel Pressure Regulator. Engineered for high-performance carbureted engines, this regulator provides a stable pressure range of 4-12 PSI, ensuring your engine receives the exact amount of fuel required for peak power output. With its durable black anodized finish and robust internal construction, the 515 series is built to handle the demands of both street and track environments.

Key Features and Specs

  • Pressure Range: 4-12 PSI (Adjustable)
  • Inlet Ports: (2) -6AN
  • Return Port: (1) -6AN
  • Finish: Black Anodized
  • Compatibility: Universal Carbureted Fuel Systems

The Fuelab 515 regulator features a large diaphragm for superior pressure stability, minimizing fluctuations that can lead to inconsistent engine performance. The dual -6AN inlets allow for flexible plumbing configurations, making it easier to integrate into your existing fuel system layout. Whether you are running a naturally aspirated drag car or a high-performance street machine, this regulator offers the adjustability and reliability you need to tune your fuel curve effectively. Its lightweight design doesn't sacrifice strength, ensuring long-term durability under high-pressure conditions. Upgrade your fuel delivery system with the trusted technology found in Fuelab products. Find all your essential fuel system upgrades at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Fuelab

Fuelab engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Fuelab lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Consistent Fuel Delivery for Carbureted Engines

Achieve precise fuel pressure management with the Fuelab 515 Series Carbureted Adjustable Fuel Pressure Regulator. Engineered for high-performance carbureted engines, this regulator provides a stable pressure range of 4-12 PSI, ensuring your engine receives the exact amount of fuel required for peak power output. With its durable black anodized finish and robust internal construction, the 515 series is built to handle the demands of both street and track environments.

Key Features and Specs

  • Pressure Range: 4-12 PSI (Adjustable)
  • Inlet Ports: (2) -6AN
  • Return Port: (1) -6AN
  • Finish: Black Anodized
  • Compatibility: Universal Carbureted Fuel Systems

The Fuelab 515 regulator features a large diaphragm for superior pressure stability, minimizing fluctuations that can lead to inconsistent engine performance. The dual -6AN inlets allow for flexible plumbing configurations, making it easier to integrate into your existing fuel system layout. Whether you are running a naturally aspirated drag car or a high-performance street machine, this regulator offers the adjustability and reliability you need to tune your fuel curve effectively. Its lightweight design doesn't sacrifice strength, ensuring long-term durability under high-pressure conditions. Upgrade your fuel delivery system with the trusted technology found in Fuelab products. Find all your essential fuel system upgrades at GGCRACING.

Product Details

Product Description

About Fuelab

Fuelab engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Fuelab lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Consistent Fuel Delivery for Carbureted Engines

Achieve precise fuel pressure management with the Fuelab 515 Series Carbureted Adjustable Fuel Pressure Regulator. Engineered for high-performance carbureted engines, this regulator provides a stable pressure range of 4-12 PSI, ensuring your engine receives the exact amount of fuel required for peak power output. With its durable black anodized finish and robust internal construction, the 515 series is built to handle the demands of both street and track environments.

Key Features and Specs

  • Pressure Range: 4-12 PSI (Adjustable)
  • Inlet Ports: (2) -6AN
  • Return Port: (1) -6AN
  • Finish: Black Anodized
  • Compatibility: Universal Carbureted Fuel Systems

The Fuelab 515 regulator features a large diaphragm for superior pressure stability, minimizing fluctuations that can lead to inconsistent engine performance. The dual -6AN inlets allow for flexible plumbing configurations, making it easier to integrate into your existing fuel system layout. Whether you are running a naturally aspirated drag car or a high-performance street machine, this regulator offers the adjustability and reliability you need to tune your fuel curve effectively. Its lightweight design doesn't sacrifice strength, ensuring long-term durability under high-pressure conditions. Upgrade your fuel delivery system with the trusted technology found in Fuelab products. Find all your essential fuel system upgrades at GGCRACING.

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