RR-Racing does absolutely awesome supercharger work. They are even able to make Lexus 'F' performance models look respectable in this day and age. Their supercharger systems simply are some of the best in the business.

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This is their RR780 kit on race gas. It is priced at a reasonable $9,999.99 when you put it in the context of supercharger system pricing for German/European high performance cars.

Keep in mind this setup is pushing higher boost on race fuel:

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Suddenly that old Toyota 5.0 liter V8 looks like it belongs in 2022.


RR780 Kit Specifications:

  • Power: For the base "RR780" kit, our customers can expect to make about 670hp at the crank, or 560 to 570whp (wheel horsepower on a Dynojet dyno, SAE correction -- see dyno result chart below and in the product photos gallery) at approximately 6psi peak boost pressure, 93 pump gas, equipped with standard PPE Headers and a high flow dual exhaust. Please note the following bullets for Stage 1 and Stage 2 optional power upgrades (this is our new nomenclature from our original stage 1, 2, 3 and 4).
  • Stage 1 Upgrade: Ethanol kit, you can expect approximately 630whp. This translates into about 750hp at the crank! Stage 1 requires blending about 30% ethanol. In order to accurately blend fuel, we include an ethanol content gauge with this kit. Alternatively, we can achieve similar Stage 1 power output by adding water/methanol injection (instead of ethanol blending).
  • Stage 4 Upgrade: running 100% ethanol for about 700 whp. Includes smaller pulley, Stage 4 tune, ethanol kit, upgraded port injectors and upgraded in-tank fuel pump. This upgrade is also available with a water-methanol kit for about 650 whp.
  • Tuned ECU: We have logged countless development hours perfecting our ECU tune for the RC F for ultimate reliability and drivability. No piggybacks or other BS! We have extensively developed the mapping of the stock ECU, modifying literally hundreds of maps and adding additional functionality to the fueling system that allows us to support up to 570whp without fuel system modifications.
  • Supercharger: Rotrex Supercharger, C38R (the most advanced Rotrex S/C system). Rotrex S/C's are extremely efficient and quiet due to their planetary drive system much like a turbocharger.
  • Dedicated Drive System: Rather than using the accessory belt to drive the SC, we designed a dedicated drive system that allows us to achieve the necessary belt tension for a reliable SC drive, without overstressing the alternator, water pump, and AC bearings.
  • Custom Harmonic Crank Damper: There are some overpriced Japanese S/C's on the market for the ISF/RCF that eliminate the factory harmonic damper crank pulley and replace it with a simple machined aluminum pulley. We find this simply unacceptable! Working in conjunction with ATI Performance, we developed a custom tuned harmonic damper than drives the SC belt. The ATI damper has been specially developed to dampen the harmonics of the 2UR-GSE engine at high horsepower levels for the ultimate in engine reliability.
  • Billet Tensioner System: Most SC kits on the market use OEM belt tensioners, but we took that a step further by developing a billet belt tensioner that is both more reliable and is able to apply significantly higher belt tension than conventional off the shelf tensioners. For added reliability we use Gates Racing Kevlar drive belts and our own double bearing billet idler pulleys.
  • Dual "Big Bubba" Billet Blow Off Valves: We use not one, but TWO Turbosmart "Big Bubba" 2" blow off valves. Adequate venting is essential for SC responsiveness, reliability, and drivability.
  • Custom Air/Air Intercooler: We use a large 4.5"x12"x10" intercooler core. These intercoolers are extremely high quality and are manufactured in the USA by Bell Intercoolers.
  • Genuine Carbon Fiber Intake Tubing: All visible intake tubing is made from genuine twill weave carbon fiber for an amazing look and function!
  • Available for model years 2017 and up for an additional charge.