Vigo327
Platinum Member
Depending on the size of engines you're talking about you probably don't need 2 separate engines unless you're running a power hungry pto implement.
For example, if you look at the size of engines they put on small tillers it is well within the wheelhouse of a large riding mower engine to run one of those AND push a small vehicle at tilling speeds (probably requires ~2hp).
Stock riding mower transaxles are said to only be able to use about 2hp for propulsion. If you build a heavier vehicle that is much harder to roll that power requirement will be higher, but still low single digits hp, and you're unlikely to ever max out your 'propulsion' and 'pto' power requirements at the same time. So don't write off a single large (>500cc) riding mower engine of say 16+hp. My B6100 kubota does just fine with 600cc and 12hp. It can run 4ft wide pto attachments and push and pull plenty hard.
For example, if you look at the size of engines they put on small tillers it is well within the wheelhouse of a large riding mower engine to run one of those AND push a small vehicle at tilling speeds (probably requires ~2hp).
Stock riding mower transaxles are said to only be able to use about 2hp for propulsion. If you build a heavier vehicle that is much harder to roll that power requirement will be higher, but still low single digits hp, and you're unlikely to ever max out your 'propulsion' and 'pto' power requirements at the same time. So don't write off a single large (>500cc) riding mower engine of say 16+hp. My B6100 kubota does just fine with 600cc and 12hp. It can run 4ft wide pto attachments and push and pull plenty hard.