RR Racing Supercharger Kit

The RR Racing RR780 is a supercharger kit designed to significantly enhance the performance of select Lexus models. This system, when installed as the base kit, delivers an estimated 625 horsepower at the crankshaft, with approximately 530-550 wheel horsepower (whp) measured on a Dynojet dyno at 7psi of boost. For enthusiasts seeking even greater power output, the RR780 kit offers scalability. With configurations utilizing Boostane, water/methanol injection, or full E85 fuel, the system can achieve over 700 wheel horsepower. Specific configurations, such as the Stage 4 upgrade running on 100% ethanol, are designed for around 700 whp and include components like a smaller pulley, a Stage 4 tune, an ethanol kit, upgraded port injectors, and an upgraded in-tank fuel pump. Documentation indicates that the base kit can produce 575 wheel HP on 93 octane, and with water/meth injection, it can reach 690 whp. Further examples show an IS500 base kit producing 670hp at the crank, or 560-570whp, and an RCF/GSF setup achieving 568whp on 93 octane and 591whp on E30. A notable build achieved 739 Rwhp and 557 Rwtq using the RR780 kit with Stage 4 E-85 components.