I'm like most normal men, can't leave something be if there is a way to make it faster, more power, more efficient, etc. Last year I bought a 12 ton splitter at AIH (local hardware store) for about $600. I liked it because it was fairly small/light but decently built. I wouldn't have been opposed to one of those chit brick house 30 something ton units, but they are $1500-$2000 up here. 6.5hp Jiang Dong engine http://www.toolsmartusa.com/65hpgasengine.html For being a cheap China built motor I'm very happy with it. Runs smooth, quiet, super easy to start and best of all it sips fuel. The specs claim .51 gal per hour, but I have split wood for over 10 hours on one tank of fuel. I split close to 30 cords this summer on about 5 gallons of gas. 3" cylinder, no idea on pump gpm or anything else. Over the course of the summer I replaced the wedge and pusher and beefed up the beam. 8" tall wedge with 3" angle iron on each side and the pusher I built out of some 3/8" and 1/4" scraps I had. Also cut off those lame log holders since they lasted about 2 days before they were bent beyond use. It works well, have yet to find a piece of wood it can't split. The only problem is that it's SLOW. One cycle is about 30 seconds. I don't know the specs of the pump. Using this calculator it works out to about 2gpm. http://www.calculatoredge.com/mech/speed hydraulic cylinder.htm I have a 16gpm pump 2 stage pump for it and a 5 gal tank as well. Both off eBay for about $150 total. The 16gpm pump should give me about a 5 second cycle time on the low pressure stage. Not sure what the gpm is on the high pressure stage. Worth including the existing tank in the beam? One thing I don't like about it if the back of the splitter is lower than the front, the oil overflows out of the vent. Then went returned to level, it is low on oil. I'm just trying to figure out if I have enough tank, enough motor, etc.