The new drop-in R&D C8 Monster Compressor Wheel and Exducer Seal Plate Kit installs directly into the OEM supercharger without any modification. The new C8 delivers horsepower you can feel with instant throttle response, aggressively improved low and mid range acceleration, and intensified top end performance. The new C8 features a light weight, high flow, 8 blade design with 8 supporting splitter veins and an increased exducer compression height over stock. R&Ds larger exducer height and aggressive blade design is the key to improving CFM airflow volume throughout the RPM range. The increased exducer height dimension increases the size of the supercharger by enhancing air pumping volume and efficiency. The C8 out performs any OEM sized compressor wheel in its boost pressure classification. After all, its airflow volume gains that increase horsepower. The R&D Monster Wheel Kit produces 18 plus pounds of boost pressure @ 8700-8900 rpm, 16+ @ 8500-8600 rpm. The new drop-in R&D C8 also offers superior off throttle surge over other 16-18 pound boost wheels. Less surge increases supercharger clutch reliability. The new R&D C8 series compressor wheels offer the highest levels of airflow and horsepower gains available for the 1.8L Yamaha engine. A properly tuned C8 set up (with supporting modifications) can produce well over 325+ horsepower. In addition, the rotating group of the new C8 Monster Wheel combined with the R&D Billet Supercharger Shaft is the undisputed Light Weight Champ, no other rotating group on the market is lighter or more powerful. Less is More: In sum, the R&D C8 Monster Wheel and Shaft weighs less, has far less surge over competitors wheel kits, rockets to 80 in less seconds and carves through corners in less time than any other wheel and shaft on the planet. Hit the throttle, hang on and discover the astounding sensation that less IS more much, much more. R&D facts: Aggressive throttle response, increased horsepower, Increased boost pressure ( 12 P.S.I. over stock @ 8800 rpm), Increased airflow volume ( 14-15 pound per minute gain), 100+ horsepower increase (with R&D R3 ECU), 350+ horsepower w/supporting parts, Precision balanced (turbo specs .012-.027 gram inches), Utilizes O.E.M. Reprogrammed R3 ECU ignition system, Utilizes O.E.M. fuel injectors w/R&D RRFPR, R3, and Powershot, 91 octane pump gas friendly with R3 ECU, Less weight and surge, Easy installation. C8 Modification Requirements: R&D High Performance Pro Series Intercooler Kit w/R&D Greddy BOV, R&D Rising Rate Fuel Pressure Regulator Kit, R&D R3 ECU upgrade to allow 8500-8850 RPM, R&D Powershot, R&D Engine/intercooler Cooling Kit, R&D Twin Prop Boost rating; 12 @ 7800, 15/16 @ 8400-8500, 17 @ 8700-8800, 18 @ 9200-9500). NOTE: The C8 Monster Wheel will work best in sea level to 2000 ft. elevations, or in ambient air temperatures between 60 and 100 degrees. NOTE: The C5 Monster Wheel Kit will require serious impellor upgrades; call R&D for the latest in impellor suggestions. Contact R&D for intercooler suggestions, and impellor pitch/nozzle combination that will be best for your performance level or application. R&D stocks the largest selection of custom impellors for the SHO/FZ/FZR. Available from R&D, Pt. # 612-25008 Retail $649.95
