


Made of sand-casted aluminum, they range in size from small brackets to full housings for big upper and lower manifolds that can be as large as 22"x17". The finished TVS 2650 6061 aluminum billet supercharger lid and manifold shows two billet brackets in the front, which became full production parts.Ĭast 328 and 356 aluminum comprise the majority of parts manufactured at Magnuson. He is the only full-time programmer but is training his shop supervisor in mill and lathe programming. Gromek, who has been with Magnuson for more than 17 years, working from the ground up, eventually became the machine shop manager four years ago. Today, nine machinists help churn out roughly 3,000 to 4,000 parts per month 80% to 90% of all products are produced in-house in two shifts per day. That is why, after many years of outsourcing various machining processes, experiencing longer lead times and, at times, substandard quality, the shop invested in eight CNC mills and three lathes, and four seats of MastercamCAD/CAM software from CNC Software Inc., Tolland, Connecticut, to power the operation. According to Hubert Gromek, machine shop manager at Magnuson, every little part of the superchargers, down to the most miniscule component, is important. Superchargers are like air pumps that pump the air forced into the engine to create more horsepower. The machining team at Magnuson Superchargers (left to right): Manuel Casasola, William Barton, Miguel Vallin Manzanarez, Kenton Klucker, Erik Perez, Javier Felix, Jesse David and Hubert Gromek. Maybe that’s why he entrusted his business and legacy to her. Both Jerry and Pendergast come from Mid-Western farm families.

Magnuson sold the company to Kim Pendergast in 2010. Magnuson designed, engineered, machined and assembled over 32,000 superchargers for Toyota Racing Development (TRD) over a 16-year period of time and continue to build superchargers for many OEMs, such as Lotus, as they have for the last 12 years. Extending his love of the sport beyond the track, Jerry and his wife, Maureen Magnuson, started Magnuson Products LLC, Ventura, California, after many years of designing and building supercharger kits for the aftermarket. The late Jerry Magnuson is a legend in the hot rod racing and aftermarket industry.
