I know this isnt a popular subject with all members but I just got a few steps closer to my engine swap project. This last Sat. I finally got lucky. I bought two f2560 Kubota lawn mowers and low and behold they happen to have d1105 engines in them. The d1105 is a a bored and/or stroked version of the RTV's d905 engine. The physical dimensions between the two are identical and the obvious comparison would be like comparing a 305 SBC and a 350 SBC or a 289 and a 302 Ford.
In this mower model, Kubota actually offers a couple versions and one has the d905 and one has the d1105 and one has a larger 4 cylinder. While the overall weight listed in the specifications is heavier with the 4 cylinder model, the 1105 and 905 engine models are listed to weigh exactly the same so in these applications it seems kubota didnt need to change anything but the engine(no drivetrain parts).
Its not a drastic hp increase and it isnt the more powerful turboed d1105-T I originally had in mind for the swap,but this will be a lot easier then plumbing in a turbo engine in there and will be less taxing on the drive train. I will try and take some pictures if anyone is interested. I think this will be a good answer for recovering the power lossed after installing a larger tire size. We will see.
In this mower model, Kubota actually offers a couple versions and one has the d905 and one has the d1105 and one has a larger 4 cylinder. While the overall weight listed in the specifications is heavier with the 4 cylinder model, the 1105 and 905 engine models are listed to weigh exactly the same so in these applications it seems kubota didnt need to change anything but the engine(no drivetrain parts).
Its not a drastic hp increase and it isnt the more powerful turboed d1105-T I originally had in mind for the swap,but this will be a lot easier then plumbing in a turbo engine in there and will be less taxing on the drive train. I will try and take some pictures if anyone is interested. I think this will be a good answer for recovering the power lossed after installing a larger tire size. We will see.