electric water pumps?

[j7 racing]

anyone have any info on which electric water pumps would work well with 250cc 2 cycle engines? flow rates, etc?

 

[GeorgeHenry]

I use a BMW electric fuel pump on mine 250cc Superkart.

 

[Ted Hamilton]

I've thought about using the standard european water pump for CIK and removing the belt pulley, then using a short piece of fuel line as a poor-man's cv joint to a r/c car motor controlled by a servo tester. Alternatively, figure out what voltage runs the motor at desired RPM and make a large r/c battery in that voltage spec. I need to do this shortly for my DAP w/c 100cc engine on dirt. I'll post pics once it's done and report back how it works. The nice thing about the servo tester vs. battery voltage is that you could change speed without much trouble.... I will say that a seperate system adds complexity and you have to remember to turn it on before starting up....

 

[j7 racing]

anyone have any flow rate numbers?

 

[bh1974]

I use a Buehler auxillary pump. 69 bucks at WWW.surplustechparts.com. Pumps at 3 GPM. Very low amp draw. They use them as helper pumps in automobile coolant systems for the heater core. No complaints so far. Part # is 3317 I think.