This kit uses the OEM FD3S water pump housing and oem thermostat(This does not require an alternator relocation bracket, or loss of either the a/c or p/s. It also retains all the OEM water connections( throttle body coolant, turbo cooling lines, heater core lines, radiator hose positions). This system can be used on the track, and only differs in ease of installation, cost, and loss of oem functions. The supplied belt on the full kit does require removal of the airpump. Airpump removal not required if using a different length belt.
The TurboSmart Time Attack Rx-7 has been running a Davies Craig EWP & Controller for over 5 years at no less than 500rwhp. The pump and controller are a proven system.