Run electric fans all the time?

DrCharles said

I'm certainly willing to try a faster WP speed since that is relatively easy to do (compared to a new radiator), although I'm a bit wary of 30 or 40% overdrive... Not worried about throwing the belt, but of cavitation in the pump.

Today I've been searching for a pair of single-groove pulleys with faster than 0.95 ratio, but haven't been able to find anything either aftermarket or "pre-owned". The new ones are all "performance ratio" which is the exact opposite of what I'm looking for...

Click to expand...

Honestly, I can’t remember what the discussion was on cavitation but whatever it was, there wasn’t much concern about it. It’s easy to pick up the phone tomorrow and call Evans and Stewart Components and talk to them about cavitation.

BTW, I chose those two companies because I switched to Evans coolant (I will no longer use anything else because of what that product does about system pressure...that alone is a big deal to me) and I wanted to make sure I was capable of running 11.25:1 on pump gas (I’m now at 11.77:1 when it goes back together) and not running it into detonation.

I called Steward Components because I use their thermostats and they make water pumps and other stuff for cooling systems.

Between the two, I did my cooling system. BTW, both said if you can get the fan close enough to the radiator to NOT use a shroud. Which I was already planning on not using a shroud.