Description
JB Performance brings you quality, performance and reliability with our line of billet impeller wheels.
Exact fit improved JB Performance billet aluminum impeller is a direct fit replacement clockwise impeller wheel. JB Performance A1 billet wheels are professionally designed to replace OEM ATI ProCharger A1 style impellers. The blades must curve in a clockwise pattern.
Our impellers are professionally designed by air flow engineers that already design turbo wheels. These wheels are professionally 5 axis machined and zero balanced on a CNC for a precise build quality. After machining, they are crack checked for defects with an x-ray, then anodized and logo etched for a perfect wheel that almost looks like art!
If you would like a CCW version, we can produce it in about 12 weeks. Same price. Just ask.
Direct fit for the following ProCharger Superchargers:
- ProCharger A1.
Comparisons:
A1 stock impeller:
- 450 CFM.
- 95 HP.
- 75,000 maximum RPM.
- Balanced by grinding, clipping, sanding, drilling.
- Weight: xxx ounces.
JB Performance billet impeller:
- 495 CFM.
- 105 HP
- 78,000 maximum RPM.
- Direct fit with no machine work.
- Narrower center section.
- A2000 Alcoa Aluminum for stronger blade support.
- Thinner blade design to allow more air to pass through same pocket size.
- 10mm larger exducer diameter by using patented flared tip.
- Digitally designed and tested by a company that specializes in improved air flow designs.
- CNC balanced. by removing specific material with a cutting tool in the precise area.
- Anodized red and JB Performance etched logo for easy verification. Helps avoid copy-cats on the market.
- Crack checked with X-ray technology.
- Weight: 3.3 ounces. (stronger, denser metal)
- 3 year warranty against blade failure when installed by JB Performance with a full rebuild. requires the supercharger RPM to not be exceeded as published here.
Want to save even more? Trade in your un-damaged A-1 trim impeller for $40 at any time.

1600A / 2300A Coupler Spring
1600A / 2300A G1 Spring Washer 3 Lobe Side
JB Performance billet impeller wheel CW fits ATI ProCharger P1SC, D1SC
Replacement drive coupler pins 30mm long
Whipple 1600A, 1600AR, 1600AX, R1600, 2300A, 2300AX front case
Whipple Supercharger oil 155ml 1.6L (100AX, 1600AX, 1600AR), 2.3L (140AX, W3A, 2300AR, 2300R, 2300AX, 2300AXM, 2300AXO), 175AX 2.9L, 235RF 3.8L
1600A / 2300A G1 extended drive head unit only rebuild kit
Supercharger oil change Syringe
SERVICE: ProCharger Supercharger Remanufacture / Rebuild 