The V-28 123A features a technologically advanced, high-efficiency, 5-Axis machined billet impeller and high-diffusion housing developed in our SAE-J1723-compliant supercharger test cell.
Built to address the needs of the over 1,000HP racer, the V-20 is a clean sheet design that incorporates many years of racing compressor knowledge. The patented design employs a unique impeller shaft support system that is robust enough to endure the speeds and accelerations associated with high horsepower drag racing and the durability to perform well in the offshore boat-racing world. The modular design allows fitment of a wide range of compressor stages. Another revolutionary feature of the V-20 series is the new Diverging Diffusion Technology (DDT) impeller/volute performance system with engine specific tunability. All V-20 series superchargers share a 4.21:1 internal step-up ratio and are engine oil lubricated or an auxiliary system can be fabricated. Like the V-1 family, the V-20 can have different compressor stages.
- Internal Step-Up Ratio: 4.21:1
- Max Speed: 60,000+ RPM
- Max Boost: 45+ PSI
- Max Flow: 4,000+ CFM
- Max Power: 2,800+ HP
- Peak Efficiency: 83%
All V-28 superchargers are equipped with the V-20-series gearcase.
- Discharge OD: 4.0"
- Inlet OD: 6.0"
- Discharge ID: 3.75"
- Inducer Diameter: 4.843"
The V-28 123A supercharger is designed to provide up to 45 PSI in extreme drag racing applications. Recommended to racers who are building for 6-second ET's in Super Street and Outlaw racing classes.
This supercharger recently powered a 6.719 @ 212.66 MPH pass by Chris Alston in PSCA Outlaw 10.5.
Its peak efficiency of 78% surpasses all other competing superchargers, allowing for higher boost at cooler discharge temperatures.
Other, less efficient superchargers may be able to provide equal or greater levels of boost, but do so at higher discharge temperatures and with greater parasitic power loss.
Racers who switch from a competing supercharger to the 123 will be capable of lower ET's and faster top speeds due to its higher efficiency, lower discharge temperatures, and greater power potential.
The extreme durability of the V-28 supercharger design allows a single head unit to be used for multiple quarter-mile passes before being replaced, under the same conditions that cause competing superchargers to wear down and need replacement after one or two passes.
The V-28 123 supercharger is recommended for the following race classes:
- NMRA Super Street Outlaw
- NMCA Super Street
- PSCA Outlaw 10.5
- PSCA Extreme Drag Radial
- ORTC Outlaw Radial