The rotor packs for the Harrop and Magnuson are the same.
The rotors are made by Eaton. TVS = Twin Vortices's Series.
Harrop http://www.eaton.com/ecm/groups/publ.../ct_167918.jpg
Magnuson Manufacturer of Supercharger kits, remanufactured superchargers and supplier of supercharger oil.
The body and the snouts are made by the the respective companies and then the EATON rotors are fitted, then sold on.
The performance will vary slightly between the two blowers due to slightly different intakes and discharge ports, but both have the same swept volume.
When you do things right, people won’t be sure you’ve done anything at all,,,,,,,,,
353RWHP L67 VS S Pack 6 Speed
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