Magnuson Hot Rod 2650 Front Bearing Support

Pulley Size
Sale price

From $750.00

Regular price $1,200.00

Magnuson 2650 Hot Rod Front bearing Support

Gen 1 Available on Clearance

Gen 2 Units Now Shipping

Custom Machined 3.00 Inch Griptec Pulley included with kit. (we can re-machine your existing 3.00 pulley if requested, this will deduct $179.00 off the retail price. contact us for this option as you will need to send in your pulley to be machined to fit)

All aftermarket superchargers are well-designed. It’s the performance enthusiast that goes far beyond what was the intended use. When the Magnusson 2650 Hot Rod Supercharger came on the market, we developed a rigid tension Magdrive for it based on our very successful LSA Race Drive. As the envelope was pushed by users with higher overdrive ratios, we started to see failures. We also concluded the high overdrive ratios failed to produce their expected results.

Failures in the Magnusson Superchargers were primarily jack shaft failures. The failures were the steel end coming off the carbon fiber shaft. Upon a closer look at the damaged shafts, it appeared the steel ends were not completely glued. We suspect that during assembly the air pressure inside the tube pushed the glue from the joint. There is not a vent hole to relieve the internal pressure during assembly.

We were also trying to develop a system that kept the belt more evenly tensioned at the higher RPM and Horsepower ranges capable with the 2650 series rotors. That led to our creating and testing of our Flexdrive tensioner design on our proven Magdrive. Our Flexdrive tensioner has a cloverleaf adjustment device that allows you to keep the belt in its “sweet spot”.

Using the Flexdrive tensioner system on a Magdrive, we discovered it became much more difficult to install the Belt so we redesigned the Magdrive creating a complete Flexdrive system. It simplified belt installation while also having additional adjustments allowing an even broader selection of belts. The Flexdrive system allows the belt to be installed and tensioned before the installation of the front cover.

The Flexdrive accomplished our goals but something seemed to be missing. We placed some cameras under the hood to take a look. We discovered the pulley on the jackshaft would bend to what we believe was excessive. The pulley bending would allow the belt to run only on the rearward ribs under high loads. A wider belt with more ribs proved almost nothing.

Note: Not compatible with the 80MM Magnuson Pulley