jd730 vs farmall m

[henry rit]

was wondering how a farmall m would stack up against a jd 730 diesel in div 2 8500#class

 

[bdpuller]

730 will just keep chuggin on when the farmall runs out of steam, if it"s true div 2 tractor.

 

[buickanddeere]

All depends. Tires, tire pressure, hitch height, hitch length, weight balance etc.

 

[Dblair]

if they're both stock tractors the JD will out do it. the M is a smaller tractor with a lot less hp only 33 the Deere 53 at the drawbar

 

[VicS]

Put a few $ in the M and it is no contest. Vic

 

[north puller]

With that weight class, i would assume both tractors want to run 18.4-38 tires. With these tires the farmall m (or supper m, they both have the same 1st gear) would have a rated speed of 2.9mph and a high idle speed of 3.5mph. The 730 would have a rated speed in 2nd gear of 2.5mph, and a high idle speed of 3.05mph.

The 730 could run WOT, whereas the farmall would have to throttle back to stay under the 3mph speed limit.

Combine this with the fact that a farmall m has 36hp, a supper m has 47hp, and a 730 has 59hp, the farmall being anywhere near stock is gonna get killed by the 730.

However, if you start to spend money, a farmall can achieve 75 to 80hp with the stock stroke, and well into the 120 range without going to the custom weld in sleeves. If so desired, the farmall could far out muscle the highest potential of the 730, and although not cheep, for a lot less $ than jacking up the diesel Deere.

So i guess that means that if they are stock, our near stock, the 730 has it by a long shot. If there has been a bunch of work done to the farmall, then it's gonna take the win.

 

[henry rit]

the class speed limit is 3.75mph the jd is stock and the m was tuned in on the dyno at 52 hp. the jd is on 18.4/34's the m is on 15.5/38's also the jd is pulling from the draw bar and the m is pulling from the loop both set at 19"

 

[north puller]

I'm still gonna give it to the 730. It has taller and wider tires, and has a much better power to speed ratio. even if the track were so loose that power didn't matter, the 730's bigger tires should give it the upper hand. 8500 lb is a tall chore for a farmall M. It's gonna need serious power for that. 75hp for a loose track, up to over 100 HP on a tight track. Once you go to taller tires, a farmall's first gear gets fast. If you stay with shorter tires, you are giving up a lot to the tractor with the larger tires.

 

[PretendFarmer]

It all depends, in my opinion, what you want. Your comparing a more powerful tractor to a less one. But I'm a Farmall man. I want to pull with a Farmall. That's what I like. They are good tractors. 8500# is not a tall chore for an M. Especially if the serial ends with A and the max speed is 3mph.

 

[north puller]

Well, with typical factory Trans and 15.5 tires, a farmall M is
gonna top out at about 3mph in low gear. I don't know what kind
of track or sled you pull, but I've seen a bone stock supper M
power out at 5500 lb more than once. I've seen better than 52
HP M's power out in 6500. Where i am, there isn't an M that
could think of pulling in 8500. Not saying it isn't possible, just
gonna be expensive.

If you have the low creeper gears, power won't be an issue, but
the guy who can run the full 3mph without powering out is
gonna beat you.

And for the record, i pull a farmall super m.

 

[buickanddeere]

Given how at tractor pulls two identical brand and model tractors with the identical size tires, same drawbar height and same weight.
One tractor will spin out at half track and the other "identical" will full pull.
It all depends on traction and balance.

 

[The Dukester]

Taking a tractor that was first produced in 1939 against one first produced in 1953 (70) isn't very fair....I run into the same thing pulling my John Deere G of 1937 vintage against 400s and 450s that came out in 1954. Lots of performance producing modifications to all tractor models and makes are done in 10 plus year spans. It's all in the game I realize....And it sure is fun whipping newer models. And no, a Farmall M isn't just an older 400 any more than a John Deere G is an older 720. There's a lot of difference in both makes models. To me, a fair comparison is models made in the same eras of the tractor's evolution....Ms versus Gs and 400s versus 70s for instance.

 

[buickanddeere]

There is a direct lineage from the 1937 G to the 1960 730.