Anyone using an electric water pump?

[mln385]

195 to 210 are good running temperatures why do you want cooler? Your motor needs to run in that area for proper operation and oil temps.

[Gaz64]

I would think you need a more efficient radiator.

Faster coolant flow is not going to help.

I don't like anything over 195F either.

Gary

[jhv48]

Does your radiator have a full shroud and an efficient puller fan?

[Sledge]

Thanks for the replies. The radiator is already larger than the standard radiator, which is supposed to be more than adequate for a 351W. The radiator is fully shrouded and has a Big Mother F______ Spal fan.

A mechanical pump is dependent on rpm for coolant flow. So, low RPM operation would mean lower water flow than at cruise. Thus, more flow at low RPM, as when driving around town, would seem to be beneficial.

[Dwight]

what is the CFM rating of your fan?

Coach installed a 2700 CFM fan and dropped the temperature a lot.

[scottj]

Originally Posted by Sledge

Thanks for the replies. The radiator is already larger than the standard radiator, which is supposed to be more than adequate for a 351W. The radiator is fully shrouded and has a Big Mother F______ Spal fan.

A mechanical pump is dependent on rpm for coolant flow. So, low RPM operation would mean lower water flow than at cruise. Thus, more flow at low RPM, as when driving around town, would seem to be beneficial.

If I was having a problem with low speed cooling I would add a Stewart Components electric booster pump and keep the mechanical pump.

https://www.stewartcomponents.com/in...&product_id=69

[Dwight]

by chance do you have a under drive pulley?

[Sledge]

Good stuff guys.

I don't believe my pulley is underdrive but I'm not sure how to determine that.

The Spal fan is supposed to pull 2470 CFM.

The Stewart Components pump looks interesting...

Thanks and cheers,