928 Motorsports - Porsche® 928 Performance Parts - High-Performance Replacement Impeller for Powerdyne Superchargers -US Patent No D554,150 S

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High-Performance Replacement Impeller for Powerdyne Superchargers
US Patent No D554,150 S

Application: Powerdyne BD600, BD10, BD11 and BD11a with round impeller shafts.

Background: The Impeller inside your Powerdyne is typical of superchargers designed about 20 years ago. Straight vanes, some curl at the inlet (top), and manufactured from a casting. The vanes cannot be curled much more than they are, or the impeller will not release from the mold when it is cast.

Today's Impeller: With advances in 5-axis CNC milling, these impellers can now be cut from a single aluminum billet. This allows us to use higher-strength alloys, and machine it to closer tolerances. We cut in tighter inlet curls and progressive vanes that were computer-designed for optimum flow inside the Powerdyne casing. Each impeller is spin balanced to 0.006 grams/inch, and designed to spin up to 60,000 rpm. This alone is a big help in making bearings last longer. This Impeller has been more than a year in development and testing, and so unique that we have a Patent Pending on it.

On-car and on-bench testing reveals that our impeller moves about 20% more air at the same RPM as the original one, and at about 20% greater PSI

Simple Installation: You can change-out your impeller by removing the scroll and one nut on the end of the impeller shaft. Slide the old impeller out, slide ours on. We designed it specifically to fit within the Powerdyne casing without and modifications, so it is just that easy. IF YOUR POWERDYNE HAS A TRIANGULAR CENTER SHAFT, we have a new impeller shaft available to update your Powerdyne so you can use this impeller.

Who Can Use this Impeller:

If you need a new impeller to replace a damaged one
If you want to go to a larger pulley to increase bearing life, without loosing Boost
or combine with our ceramic bearings and vents to build the ultimate Super-Powerdyne!

Benefits of this Impeller:

The Boost will come in earlier
There will be more of it. ...and when combined with a larger pulley,
You can get longer bearing life without loosing boost.
You can solve a belt slippage problem without loosing boost.

Testimonials:

Porsche customer in NJ reports he went from 6 psi on his boost gauge at 4,000 rpm to 8 psi at 4,000 rpm by just replacing his stock impeller with no other changes.
Race Car Owner in Australia reports that his 5.4L stroked and supercharged Ford Falcon picked up 60 HP on the dyno with this impeller.