The Street kit uses the OEM FD3S or FC3S Series4 waterpump housing. 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 belt is also designed for an FD alternator upgrade( OEM alternator is too low of amp output for this kit). This kit also retains the function of the OEM thermostat for proper warm up operation.
If you have an Series5 n/a or Turbo2 Rx7 you will need to swap to a Series4 n/a or T2 waterpump housing and thermostat neck in order to use this kit. If you have a 20B engine you will need to bolt on a FD3S waterpump housing and thermostat neck.
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.