Electric Water Pump questions ...

[RussMcB]

Last month at NCM (C4 Gathering) and Road Atlanta yesterday I couldn't drive more that a lap or two at speed without the coolant temps quickly reaching 124-127 degrees C.

I still have a stock radiator, which I plan to replace, but I'm not sure that by itself will solve the problem, which (I assume) is primarily due to the LT-5's unique high-RPM radiator bypass system.

If I switch to an electric water pump system (along with an improved radiator), will that solve the problem? Has anyone done that and confirmed it keeps an engine cooled during semi-sustained high RPM's?

Are there any good write-ups describing how to do it, parts needed, what to do with the original water pump, etc.?

Thanks.