Just an update for you all. I picked up a used 5HP, single phase, 230VAC/22A 1750 RPM motor today for $125. The case only has vents on the bottom, so it is probably a farm-duty motor that can handle being rained on (althought I won't let that happen). These beast has like a 1 1/8" shaft on it.
I will need to use pulleys (sheeves) to step the speed up for my pump. I'm still going to try to do some kind of quick-mount to swap out the 8HP gasser with this motor, using a spider coupling. I will need to use an jackshaft with the driven pulley and 1/2 of the spider coupling to mate with the half on the pump.
Another option is to use a 2nd pump on the electric motor tee the suction line and install some kind of large quick coupling, and put quick couplings on the pressure side so that I can move the pressure linebetwen pump. In this scenario, the electric motor and pump would be a separate assy. on wheels that I would wheel up to the splitter and connect in place of the gas-driven pump.
Any ideas here on being able to quickly change power source? I still want to be able to run it from the gas motor in the woods too. I do about 65% of my splitting at home in front of my shop (would be nice to do INSIDE the shop when it is raining), and about 35% in the woods.
Thanks again everyone,
Jay