Coated Rotors with Upgraded Bearing Plate from Magnum Powers

Adding horsepower has never been as guaranteed as installing a set of abradable coated rotors to your M90 supercharger with the dramatically improved Magnum Powers bearing pack!

SCP will attempt to meet or beat any other sources pricing on an identical item. Call us to discuss 513-697-6501.

Free shipping is NOT INCLUDED in the purchase price of this item.  Cost will be based upon package size, weight and distance to be shipped.   If you would like an estimate please contact us.  If ordered online an appropriate amount for shipping will be added to your order prior to your credit card being processed.


An abradable coating is a coating made of an abradable material – meaning if it rubs against a more abrasive material in motion, the former will be worn whereas the latter will face no wear.   When sprayed accurately on to the aluminum rotors within the M90 supercharger these will create much tighter tolerances between the case and the rotors which increases efficiency, lowers inlet air charge temperatures, and simply adds power to your engine.   In independant tests on a mid-300 HP Super Coupe engine by a well known builder this setup increased power output by 10%!   This upgrade has become a MUST HAVE within the SC community!


If you have an early Eaton M90 supercharger with the 9 bolt pattern we offer to have your existing rotors sprayed with the same coating that Eaton Corporation uses for their Gen 4, Gen 5 and newest TVS style superchargers.  This package also includes our upgraded bearing plate that incorporated Gen 5 trapped air ports that eliminate inefficiencies with the old design plate by improving air flow.   To be clear, this upgrade is done to your existing bearing pack which includes the bearing plate behind the supercharger nose, the gear set, and both rotors.  The customer will disassemble their supercharger and send in your bearing pack for this impressive upgrade.   Timing is approximately 6 weeks which can vary depending upon your location which affects shipping duration.


This coating will not flake off which is typical for the original coating that was factory installed on the '94/95 superchargers.   The '89-93 models had no coating at all, hence another reason for their lesser efficiency.   As you can see in two of the pictures, it is common for the original rotor coating to either wear off or flake off in chunks and this coating will be either stuck in the intercooler blocking air flow or potentially can be injested into the engine.  This coating will literally last the life of the supercharger.

Customers who bought this item also bought

High Performance Thermostat & Gasket

180 or 195 degree...your choice. Comes with new gasket.


SCP Roller Rocker Set

1.73:1 ratio, race quality extruded aluminum pedestal style rocker set. Comes complete with allen head fasteners. These are almost too good looking to cover up with your valve covers.


Magnum Powers "Classic" Big Bore Throat SC Top

The original!  No other SC top throat is bigger! The only enlarged throat supercharger top available with a thin, stock looking lower flange. Our BRAND NEW aluminum castings provide superior flow capability with a larger throat opening than ANY welded top that uses a spacer.