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We are proud to announce our RX-8 Electric water pump kit to the masses! We’ve been working on refining this design for the better part of a year now and are finally happy to make all of the R/D that went into this setup available to the rotary community. For years we battled with cooling related issues with the RX8. Adding high efficiency dual oil coolers really helped the situation but at the end of the day the RX8 still suffers from problems related to the lack of foresight with the stock water cooling system.
The first issue with the cooling system is the mechanical pump itself. The OEM pumps are (for lack of a better term) garbage with the impeller made from folded sheet metal. Up until this year we've been using the Mazmart RE-medy machined mechanical pumps, however no impeller can be designed for optimal flow at all RPMs... the pump will either under-flow at low RPM's or cavitate at high RPM's. The issue is that the pump, being mechanically connected to the motor, operates regardless of temperature and is forced to spin outside of its optimal range.
End user will be responsible for a solution for mounting the pump and hose in between radiator and block as this kit does not provide hoses. However in the instruction manually we provide pictures for how we mounted this kit on our shop car.
