Run electric fans all the time?

DrCharles said
But 0.95 is the standard non-a/c pulley ratio (i.e. 5% underdrive) for big-blocks with the eight-vane pump. Which is what I had, and also in agreement with the chart you posted earlier.

There is no 1:1 unless I get some custom pulley setup. Will it be worth it for 5%? I'll be shifting at well over 6000 rpm and don't want the pump to cavitate, either.

The Flowkooler 16-fin pump just arrived and it's a nice looking piece. It should move a lot more water than the standard pump that came out. I'll pop that in tomorrow and see how my temps do (with the fans back in).

Don’t get caught up in all the OE ratio/impeller crap.

Speed the water pump up, use the highest flow volume pump you can get and forget the impeller numbers.

Of all the industry people I’ve contacted not a single ONE, not ONE gave a crap about how many impellers were on the WP.

They all said overdrive the pump and use a real high flow water pump and be done.

You aren't dealing with a bunch government regulations and bullshit fuel economy crap.

Speed up the highest flowing water pump you can get and find something else to tinker with.