How about...

bglombowski · Aug 30, 2005

The link says (and goes to) 2520. I'm looking for the 2320. Thanks again.

rockyridgefarm · Aug 30, 2005

HobbyFarm isn't COMPLETELY crazy, we are all a little surprised the manual doesn't cover both!!

Still nothing more than what is snuck in on the Shhhhhhhhhhhhhhhh!! thread in JD Owning Operating

I am sure Dutch knows more than he's showing, we just gotta sHaK-E it outta him!

bglombowski · Aug 30, 2005

Thanks Mike. Yeah, I saw the Shhhh... thread. I was seriously interested in the 2210 until I stumbled across TBN and learned about the 2305. Then the 2320 and 2520. Since I wasn't quite ready to buy anyway, further thinking makes wonder what the 2320 has to offer. I've seen the specs for the 2520, so I'm hoping the 2320 has all I'm looking for... basically a 2305 with a larger frame, bigger tires, more pump and close to the same weight.

rockyridgefarm · Aug 30, 2005

two factors to consider as weight goes up. first, the weight is usually spread over a larger contact patch, so it minimizes the effect of the additional weight on the turf. Second, you will tend to grow into the machine, usually they seem smaller after you own them.

Of course, that is NO EXCUSE for my not producing ANY info on the 2320

ADin · Aug 30, 2005

Ok - A dumb question,

I always hear that PTO HP is the "true measure" in comparing the real work that get's done. Yet the new 2520 is basically the same PTO HP versus the 4115 even though both the HP and displacement are larger. So how should this be interpreted? Is it a less efficient engine in that it only delivers same HP to PTO even with larger displacement? I notice they are rated at 2600 vs 2650 rpm. Does 50 rpms make that much difference on the power curves? I'm sure the 2520 engine is better, but how? Much quieter??

rockyridgefarm · Aug 30, 2005

I think that the new engines are better in many ways, but are less efficient. They are using larger displacement engines to achieve similar Hp ratings. Also there is a transmission involved. If the pto Hp changes, it may be due to inefficiencies in the transmission.

None of these specs are official, and even then could change.
And there is nothing dumb about your question.

Hypernix · Aug 30, 2005

rockyridgefarm,

</font><font color="blue" class="small">( I think that the new engines are better in many ways, but are less efficient.)</font>

This is a very interresting statement! Could you explain a bit more?

Hypernix /forums/images/graemlins/grin.gif

Cliff_Johns · Aug 30, 2005

I also wonder if the new engines are built to a higher emissions specification.

Cliff

rockyridgefarm · Aug 31, 2005

The new engines are Tier 2 compliant. They are a major new design for the more stringent emmissions standards.

To show my point, I went to Yanmar's site. Well, I had a sh/forums/images/graemlins/shocked.gifck!

Here is what I found at Yanmar for industrial applications... (3000rpm)
What's up? Deere's numbers are very different!

In each of the following groups, I list the engine specs from Yanmar and then JD. First in the new engines/tractors, then the old models.

3TNV82A..29.4/3000
2520........26.5/2600
3TNE82A..29.4/3000
4210........28.0/2600

3TNV84....30.0/3000
3120........29.5/2600
3TNE84....30.0/3000
4310........32.0/2600

3TNV88....36.4/3000
3320........32.5/2600
3TNE88....36.3/3000
4410........35.0/2600

I wonder if Deere is purposely derating the engines? I realize that these are at differant engine speeds, but the numbers are still not proportional, ALL the new Deere's are significantly lowered compared to the old models...

here are the performance charts from Yanmar, I don't see a big difference in power, although there is a nice bump in the torque curve...