250 water pump pulley diameter

[MercuryMarc]

I was at a car show today and someone commented that my waterpump pulley is too large (diameter 6.75 inches) and that it will spin too slowly. He said is should be a smaller diameter and spin more quicky, moving more fluid and more effectively cooling my engine.

My motor is 69 250 in my 63 Comet, no air and no P/S.

Comments?

Thanks!

 

[matt1967]

does it overheat? if not, don't worry, your saving hp, that pump would eat more if it spun faster

 

[ludwig]

If it ain't fixed, don't break it.

 

[MercuryMarc]

Thanks for the comments
On the highwayit gets to 180-190 (180 T-stat).
But up hill, in August, on the way to Reno, 8000 foot summit, at 75 MPH, 85 degrees outside temp, the temp kicked up to 200-225 degrees, then below 220 the rest of the way once over the summit. In town the electric fan 14" works just fine. So I wonder if with a smaller diameter pulley it would run coooler on the highway.

 

[wallaka]

I think those temps are fine. It'll always run hotter at higher altitudes, but the boiling point goes up too, so it's a wash.

 

[gary6768]

I think those temps are fine. It'll always run hotter at higher altitudes, but the boiling point goes up too, so it's a wash.

Boiling point goes DOWN at altitudes and why would it run hotter at altitudes. getting to altitudes would make it run hotter but not once you get to altitude