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Continuing the company’s tradition of automotive supercharging system research and944Rotrex3.jpg (19191 bytes) product development, Rimmer Engineering, Inc. has taken on the innovative Rotrex supercharger line and launched a program of evaluating and testing vehicle applications suitable for its specific performance characteristics.

This program involves prototype installations for proof of concept and performance improvement appraisal. If accepted, prototyping is followed by comprehensive development, test and production of complete installation packages. Going far beyond the typical "tuner" approach in design and specification of its supercharging systems, Rimmer Engineering evaluates the entire package, including the manufacturing, installation process and everyday practical use of the supercharged vehicle.

Because of its very compact size and technically simple but advanced design, the Rotrex supercharger is able to be fitted into many vehicles where other superchargers are very difficult to install. Its quiet and unobtrusive operational sound level is far superior to that of other centrifugal superchargers currently available, making it much more suitable for normal (non-racing) daily use.

The boost characteristics of its centrifugal compressor configuration mean the Rotrex is best suited to sports, GT and high-performance driving, rather than off-road or heavy-load work where maximum power is needed at lower engine speeds. For those applications, Rimmer Engineering offers supercharging systems utilizing the positive-displacement Eaton compressor. Since the Rotrex, like the Eaton, is a mechanically-driven supercharger, many of the problems associated with turbochargers, including throttle lag and increased under-hood temperatures, are eliminated.

Current development projects include the Porsche 944 (eight-valve engines) and the Subaru 2.5 liter (SOHC) applications. A complete Rimmer Supercharging System (RSS) package for the 944 is expected to be released to market within a few weeks time. Other vehicle applications are being researched.

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