photos by Jeremy Stanton, Stephen Brooks and the author
A Magnuson Radix Revamp — Straight from the Source!
After 110,000 trouble-free miles, the Magnuson supercharger on our regular cab, stepside (RCSS) 2003 Silverado show- and tow-truck started making a faint noise we’d never heard before. Although it was faint, we mean, really faint, we thought it best to pull the polished M112 Radix blower off and visit Magnuson Superchargers in sunny Ventura, California for a full rebuild on our trusty supercharger.
That’s right; Magnuson doesn’t just sell new world-class supercharger systems, they also have a complete in-house service facility that rebuilds and refinishes just about any Eaton supercharger, including those from OEM applications like TRD, Ford and Chevrolet. If that’s not cool enough, service time on a supercharger rebuild is typically less than a week and every rebuilt blower is tested on a high-tech supercharger dyno to ensure it’s ready for big boost and many more miles.
The MP112 blower and our RCSS Chevrolet Silverado
Long before the current TVS line of blowers, the Eaton M- and MP-series of superchargers were the hot ticket. After a long run of successful blowers found in OEM applications like the Terminator Cobra (M112) and Ford Lightning and Cadillac STS-V and XLR-V (M122), Eaton took the legendary pair of three-lobe rotors and made them high-helix units (adding the “P” to the “M” and creating the MP112 and MP122) with 60-degrees of overall twist for greater efficiency and cooler discharge temperatures.
The fifth-generation Eaton supercharger rotors displace 112-cubic inches per revolution for great flow potential and efficiency, but Magnuson took it one step further when it slid them into a high-flow proprietary case and then augmented it with S Port technology that utilizes an integral bypass valve to keep fuel efficiency high during partial-throttle cruising where the blower can “free-spin,” and power potential up thanks to a claimed 90% volumetrically efficiency. When added to Magnuson’s legendary supercharger kit components, like the air-to-water intercooler systems that keep inlet temps at bay, that are known for their extreme completeness, power production and emissions compliancy, it’s easy to see why we had well over 100,000 trouble free miles.
At approximately 30,000 miles, our Dark Carmine Red Metallic RCSS Silverado received a polished Magnuson Radix supercharger kit along with Belltech suspension and ultra rare polished Halibrand 6-bean rims. In one hit, the truck went from a stock cruiser to a low 13-second show, go, and tow-truck that served as a daily driver and a tow-rig pulling around project cars for the past decade.
After 10 trouble-free years, as we mentioned earlier, the blower started making a faint noise we’d never heard before, so a quick call to Magnusson revealed they had a full service facility and we could ship them the blower, bring them the blower, or bring them the truck—we popped the blower off, threw it in the trunk of a rental and bombed down to the Magnusson headquarters for a blower overhaul and a full facilities tour.
The Rebuild Process
As mentioned, Magnuson’s in-house service center can rebuild or refurbish a supercharger from components to complete in just a few days, which means your supercharged race car, weekend warrior or daily driver will be back on the road in no-time.
Although we previously had no idea that Magnuson had such a service, we were obviously in the minority since there was an entire shelf of different blowers waiting for a refurbish, a rebuild, or just some parts.
Follow along with the captions as we take you inside the world-class facilities for a Maggie revamp straight from the factory itself. To put it into perspective; it’s like taking your Camaro back to GM for a factory resto and refresh. How’s that for legit?
Raised in a house of hotrods, classics and motorcycles, it only made sense that he would blend his love for writing and photography with his love for all things automotive. Armed with a degree in journalism and graphic design, he embarked on a journey into motorsports journalism and has worked for many magazines and Websites chronicling his love for the industry.