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• 165whp/ 145 Torque, SAE corrected, Superflow dyno, 91 pump gas, stock cat and exhaust, header (header not included)
• 5psi fixed boost
• Non-intercooled
• Kraftwerks SuperCard digital PC controller box adjusts injector pulse width for fuel control
• Runs stock timing, no adjustment needed
• 2 hour install with hand tools, on the ground. No drilling or permanent modifications neccesary
• For P/S & A/C or P/S & no A/C cars
• CARB certification pending

This system uses the latest technology in forced induction, the ultra high efficiency Rotrex supercharger. The Rotrex uses a small turbo style compressor driven by a planetary drive system capable of spinning up to 200,000 rpm. This ultra high rpm delivers the superior thermodynamic efficiency of a turbo charger compressor with the simplicity, ease of installation and instantaneous throttle response of a supercharger. Typical intake air temperatures for thsi non-intercooled version on an 80* day will be less than 125* at sustained full boost. That ultra high charge density and thermal efficincy is difficult for any turbo to match and far beyond what any traditional positive displacement (Eaton, Whipple) blower can accomplish.

  You never have to worry about high intake temperatures, extreme under hood temperatures, boost spikes, engine oil lines… Everything is cool, self contained and extremely efficient. The Rotrex supercharger runs off a serpentine belt, and includes an automatic belt tensioner for improved belt life and belt performance. The Rotrex patented traction drive is whisper quiet and produces the coolest output temperatures in forced induction.

The power band is a hybrid between a turbo and supercharged car. Like a turbo there is strong mid-range and very high charge efficiency. Like a supercharger there is instant throttle response and the steady increase in torque that just keeps building. There is no big "hit" in power, just a deceptively smooth steady increase right to redline. The other unique byproduct of the hyper efficient planetary drive system is no noise. There is virtually no sound from the blower, just a light flutter from the bypass valve when you lift. Very unobtrusive with OE like seamlessness.

New parts in development:

• 94-97 & 90-93 kits under development, ETA early '10
  
• Intercooler upgrade for base kit
  
• KW3 upgrade - Includes intercooler, ECU, injectors and everything you need to increase power to 230whp
• Race kits for non-P/S, non-A/C cars

In development for about two years, hundreds of track miles, tens of thousands of commuting and canyon run miles. We're confident that is is far and away the easiest to install, most efficient and robust forced induction system ever offered for the Miata. The kit come complete with everything you need to make your Miata a whole bunch more fun, oh and faster too.

Included Items:
• Rotrex C30-74 Supercharger set for 5 PSI
• Rotrex Self-Contained Oiling System with Oil Cooler
• KraftWerks Recirculating Bypass Valve
• KraftWerks Automatic Belt Tensioning System
• KraftWerks SuperCard Engine Management Unit
• KraftWerks Aluminum Intake and Discharge Piping
• KraftWerks Silicone Hoses
• KraftWerks Oiled Air Filter
• KraftWerks MAF Relocation System
• KraftWerks Racing 4-Rib Belt
• KraftWerks High-Quality CNC-Machined Brackets
• High-Quality Metric Fasteners and Hardware
• Installation Manual and CD-ROM

Technical Data Sheet for C30-74 Rotrex unit