I see some are using the bilge pumps to cool there clutch and belt. My question is what is to much CFM , I have a 12volt 800cfm blower motor, it starts at 15amps then goes to 4amps once its going. I had it on a auto a few years back but still works perfect, is that way to much. the 800cfm was with smaller tubing like 2 1/2 so i would think going bigger would cut that down a bit.