Rotrex Supercharger Kit – Supersport Lotus Exige 2 (Honda K20 Engine)
TTS PERFORMANCE has developed this superb supercharger conversion to give you a 100% plus power gain and give you better drivability then the standard car. This conversion enables the car to pull hard through its entire power band with no glitches or fuss, no throttle lag, just seamless power.
This conversion requires very little maintenance, utilising the genuine Honda belt tensioning system means OEM reliability. The chargecooler/prerad system enhances the performance by keeping the intake charge temperature at a less than 55 deg. C.
This conversion outperforms all other commercially available supercharger conversions on the market.
ROTREX superchargers are not positive displacement but work on the principle of a turbine, the same way that turbochargers operate. In order for this principle to work the turbine has to spin at very high speed. In turbochargers the hot exhaust gases spin the turbine up to speeds of up to 150,000RPM. TTS/ROTREX superchargers spin up to 250,000 rpm depending on model. To get these high speeds in the TTS/ROTREX supercharger the input drive shaft operates through a special planetary gearbox to speed up the turbine, the result being high-pressure air out of a compact unit the size of an alternator.
The gearbox is a fixed ratio traction roller transmission, which has a built in capability to adjust contact forces applied to the traction surfaces of the transmission in relation to the force required. Traction roller transmissions require relatively large engagement forces between their traction surfaces to prevent slippage.
The TTS/ROTREX unit automatically adjusts the contact force, to optimise the gear for those applications where the transmission transmits less torque, the amount of frictional losses and wear is reduced. Where full torque is transmitted, the transmission has the capability to provide sufficient traction force to prevent slippage.
The TTS/ROTREX charger being of this turbine type overcomes the drawbacks of previous superchargers, these problems being the main reason car manufacturers started to develop turbo chargers some 20 years ago and only now are manufacturers coming back to look at superchargers.