[DeTomaso] water pump

[Garth Rodericks]

I have the Weiand aluminum water pump on my car and it's been great.  No cooling 
problems whatsoever. Granted I haven't maintained high speed cruising (+120mph) for more
than a couple minutes at a time, but I have cruised for hours at +90mph with no 
overheating problems. I've also had no problems with the Weiand pump sitting in stop and 
go traffic in 100-degree weather. My car consistenly runs at 180-degrees with a 180-degree 
thermostat.

The Weiand water pump is a high quality casting. It's also the pump that PI Motorsports 
sells. The fact that it doesn't have a bypass means that you can run a regular Windsor 
thermostat too. As far as the disc/plate on the back of the impeller blades, Summit used to 
sell a Flow Kooler discs that could be riveted to the impeller of any manufacturer's pump, 
but I haven't seen them listed lately.  My concern with adding such a disc was that if it was 
not perfectly centered on the impeller it would create an out of balance condition which 
could lead to premature bearing/seal failure.

Here's a link to more info about my waterpump swap:
http://www.banzairunnerpantera.com/updates_thermostat.htm