Exact fit JB Performance direct fit replacement counter-clockwise billet Powerdyne BD 11 trim style impeller.  The blades must curve in a counter-clockwise pattern.

Direct fit for the following Powerdyne Superchargers:

• Powerdyne BD11
• Powerdyne BD11a
• Powerdyne BD12
• Cool Charger BD11
• Cool Charger BD11a
• Cool Charger BD12
• O2 Force 100
• Ford Motorsport SVO BD11.
• Ford Motorsport SVO BD11a.
• Ford Motorsport SVO BD12.

Will also fit the following with an upgrade to a BD11 or newer round output shaft.

• Any Powerdyne, Ford Motorsport SVO, or Cool Charger with a model number of BD10. Your unit may already be upgraded. A round shaft will use a nut to secure the pulley while a triangle shaft will use a bolt.

Comparisons:

BD11, 11a, BD12 stock cast impeller:

• 600 CFM.
• 400 HP.
• 38,500 maximum RPM.
• 65% efficient.
• Balanced by grinding, clipping, sanding, drilling.
• Weight: 9.7 ounces.

JB Performance billet impeller:

• 700 CFM.
• 460 HP
• 38,500 maximum RPM. It can be spun up to 42,500 rpm if it is not installed on a high torque engine. High torque applications can snap the HTD internal belt.
• 72% efficient.
• 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.
• 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: 10.4 ounces.
• 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 impeller for $150 at any time.