Ryan:
I am so glad you asked that question. This might ruffle some feathers, but it is not intended to.
I want to preface my remarks by saying that the following comments have nothing whatsoever to do with any comments made by a notorious poster from the past called (dare I speak his name?) Ramon49 who went on at GREAT length about how underpowered his
L3130 was. I chalk that case up to a variety of things, none having anything to do with the performance of a Kubota
L3130.
That said: I have heard from several credible-sounding posters that when they really load up their 3130's, especially the tires, but also with backhoes and other heavy attachments, that they start wishing for a little extra power. I did a power-to-weight ratio analysis on the Grand L's before I bought one, and it obviously gets better and better the higher up you go. The frames are all roughly the same class, with the 4330 on up being a little beefier to accomodate the 853 loader, and the 5030 maybe a little beefier still; the front axle might be a little bigger, and I would think that something is beefed up in the rear to boost the 3ph lift a little. Here are the figures: (HST, no cab, net engine HP, tractor only, barometer 29.78" and rising, wind out of the SSW)
<ul type="square">
L3130: 105 lbs/hp
L3430: 98
L3830: 87
L4330: 85
L4630: 78
L5030: 75 [/list]
You can kind of see how the ratios change based not just on HP, but on the frame differences. Not so dramatic a drop going from the 3830 to the 4330 for example.
But a bigger (percentage-wise) drop going from the 3130 to the 3830, and a more modest drop when comparing the 3130 and 3430.
The 5030 obviously is a beast. I'm not saying that because I have one; as always, it's the other way around. The 4630 is right in there power-to-weight-wise, but I don't like that they just tweaked the 134.1 CI 4330 engine to get 3 extra horses, instead of boring or stroking it. To me, the most desirable LXX30's would be the 3830 (but that's just short of being able to get the 853 loader), the 4330 (more modest increase in power-to-weight, but you get the 853 loader), and the 5030 (not necessarily in that order), /forums/images/graemlins/smile.gif leaving the 3430 merely a superb choice. 3130? Great tractor, probably PERFECTLY suited for a wide variety of tasks like ALL the XX30's, but see above.
These are just my opinions - it is never my intent to put down any particular tractor. Just talkin' here. /forums/images/graemlins/smile.gif