Ref the other thread on this subject.
Kubota has always put more horsepower in a given weight class. You are using horsepower to decide the class--wrong--go by weight. If you look at it that way you see that Kubota puts more power in their tractors of a particular weight class.
Here is another thing, if you want a heavy tractor I guess you need to buy something other than a Kubota /forums/images/graemlins/grin.gif. Those Russian Belasuarous tractors are extremely heavy as are the Farm Pro Chinese tractors. I don't think I will trade my Kubota for a Belasauous.
To be clear--rather than thinking horsepower vs weight you need to consider weight first and then for that weight see who has the most horsepower. Kubota, often as not, has the most horsepower for a specific weight class they compete in.
Here is another thing, I don't want a heavy tractor--overly heavy anyway. I can ballast my Kubota with front weights, box weights, implements, filled tires etc but nothing you can do with the built (un-needed) heavy unit to make it lighter. Well, maybe put helium in the tires /forums/images/graemlins/laugh.gif. I will take a light(er), strong, precision tool over a heavy, chunky tool any day. I know that tractors and aircraft are not a good comparison but in aviation making something heavy does not make it stronger but extra strength is then needed for that extra weight and on and on and on. I personally have an aversion to useless weight that serves no purpose. Massive castings that put metal where there is no stress path serve no purpose and is a sign of poor engineering or no engineering to me. That is just me, if'n you don't see it that way Attwoods got the Farm Pro Chinese 24 horsepower tractors priced below 4,000 dollars. /forums/images/graemlins/smirk.gif. Good luck. J