Quote:
Originally posted by GS:
...Did extensive research and found that plastic is the only material that could be molded to produce an efficient design for water flow.

The metal impellar is a lot more shallow than the plastic, and some resources have stated that correct flow in the head is not achieved(prone to hot spots)....
Metal water pumps, as stated above by DanB have been used for years in all makes.

I didn't notice any significant difference in metal impeller topography. I did notice nice sharp metal edges which should have no problems dealing with the bits of plastic now residing in my cooling systems. No change noted in operating temp; metal vs plastic, but that's why there's a thermostat.


98 Mystique LS v6 atx 110,000km
97 Contour LX v6 atx 125,000km
stock CD on LS, cass on LX
spoiler, tinted windows on LS only
4 wheel discs on LX only
All other available options on both