ProCharger F-4R-136 Self-Contained Centrifugal Supercharger Head Unit with Splined Input Shaft & Threaded Volute - 3,000 HP - 4,000 CFM - 50 PSI Max Boost - Polished Finish - PC314A-140-C-SP-T-P
The ProCharger F-4R-136 Self-Contained Centrifugal Supercharger Head Unit is engineered for professional racing programs that require uncompromising airflow, durability, and dependable high-output performance. Rated to support up to 3,000 supercharged horsepower while delivering 4,000 CFM of airflow, the F-4R-136 is built for elite drag racing, radial racing, no-prep, offshore marine, land-speed competition, and other maximum-effort motorsports applications.
Capable of producing up to 50 PSI of boost, the F-4R-136 combines ProCharger's proven self-contained design with a splined input shaft and threaded volute for compatibility with professional crank-drive systems and race-oriented discharge plumbing. ProCharger lists the recommended motor base horsepower as CALL, allowing this head unit to be properly matched to highly specialized racing combinations.
Purpose-Built for Professional Competition
The F-4R-136 uses a massive 12-inch volute, 5.75-inch inlet, 5.23-inch inducer, 7.22-inch exducer, and a 4-inch outlet with a 3.59-inch outlet inside diameter. This high-capacity compressor package is designed to support extreme airflow requirements while maintaining the compressor performance demanded in severe racing environments.
The splined input shaft is intended for compatible race crank-drive systems, while the threaded volute provides a secure connection point for properly matched race discharge plumbing. Together, these competition-focused features make the F-4R-136 an excellent choice for builders assembling professional-level forced induction systems.
Self-Contained Lubrication
The F-4R-136 features ProCharger's proven self-contained lubrication system, eliminating the need for engine oil feed and return lines. Its dedicated 6 oz. Race Oil capacity reduces external plumbing while keeping supercharger lubrication separate from the engine's oiling system.
The compressor uses a 4.77:1 internal step-up ratio and supports a maximum impeller speed of 72,000 RPM. This model is designed for standard rotation only, and reverse rotation is not available.
This listing is for the polished ProCharger F-4R-136 head unit with splined input shaft and threaded volute. Mounting brackets, crank drives, pulleys, belts, intercoolers, charge tubing, bypass valves, fuel system components, tuning, and installation hardware are not included unless otherwise specified.
Features
- Supports up to 3,000 supercharged horsepower
- Maximum airflow rating of 4,000 CFM
- Produces up to 50 PSI of boost
- Motor base horsepower recommendation: CALL
- Splined input shaft
- Threaded volute
- Self-contained lubrication system
- 6 oz. Race Oil capacity
- 12-inch volute
- 5.75-inch inlet
- 5.23-inch inducer
- 7.22-inch exducer
- 4-inch outlet with 3.59-inch outlet I.D.
- 72,000 RPM maximum impeller speed
- 4.77:1 internal step-up ratio
- Standard rotation configuration
- Polished finish
Quick Specs
- Manufacturer: ProCharger
- Model: F-4R-136
- Part Number: PC314A-140-C-SP-T-P
- Product Type: Self-Contained Centrifugal Supercharger Head Unit
- Finish: Polished
- Special Features: Splined Input Shaft, Threaded Volute
- Maximum Supercharged Horsepower: 3,000 HP
- Motor Base Horsepower Range: CALL
- Maximum Airflow: 4,000 CFM
- Maximum Boost: 50 PSI
- Volute Diameter: 12 in.
- Inlet Hose Diameter: 5.75 in.
- Inducer Diameter: 5.23 in.
- Exducer Diameter: 7.22 in.
- Outlet Hose Diameter: 4 in.
- Outlet Inside Diameter: 3.59 in.
- Maximum Impeller Speed: 72,000 RPM
- Internal Step-Up Ratio: 4.77:1
- Reverse Rotation: No
- Self-Contained Oiling: Yes
- Oil Capacity: 6 oz. Race Oil
Published specifications are based on the ProCharger catalog. Actual horsepower, airflow, and boost depend on the complete engine combination, drive ratio, fuel system, intercooling, calibration, installation, and operating conditions.
Frequently Asked Questions
What makes the F-4R-136 different from the F-3R-136?
Although both models share the same published horsepower and airflow ratings, the F-4R-136 uses ProCharger's F-4 platform with a 4.77:1 internal step-up ratio. It is also configured with a splined input shaft and threaded volute for dedicated professional race-drive and discharge systems.
Does the F-4R-136 require engine oil feed and return lines?
No. The F-4R-136 uses ProCharger's self-contained lubrication system with a dedicated 6 oz. Race Oil capacity, eliminating the need for engine oil feed and return plumbing.
Why Buy from Beefcake Racing?
Extreme-horsepower combinations require every component to be carefully matched. Beefcake Racing can help you select the correct ProCharger head unit, crank-drive system, pulley ratio, fuel system, intercooler, bypass valve, and supporting hardware for a reliable professional competition package.
Questions? Call 1-855-827-7223 or email sales@beefcakeracing.com.
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