Is it possible to upgrade the hp of a tractor with an ecu change? Like taking my 4760 and stepping up to more hp? Or a programmer? I would like a bit more oomph out of my machine.
You got the shorter answer. The longer one has to do with no one knows of any modified ECU units like have been installed in diesel trucks. It is probably theoretically possible to up your power but I don't believe anyone has done it. It probably has to do with lack of demand. The people who design and build that kind of stuff expect a profit. Now, go buy a bigger tractor if you want more power.
Several company's offer Kubota ecu upgrades, not sure if your model is something they do but you could ask. Goggle Kubota ecu tuning and you will find lots of reading. Not sure it is legal?