Case optum. Punching well above its weight

[Foxcover]

depends on what your comparing it too. new JD 8280R is 6.5m long and 12.6t, optum 300 is 5.7m long and 10.5t. so relatively, it is definitely pocket rocket.
JD 8400 would be closest to a puma 240 power wise, not an optum.

amazes me how compact people are wanting/expecting a 300hp+ tractor to be nowadays, then half the time still complain it doesn't pull like older ones. wasn't all that long ago a 265hp tractor would weigh near 15 tons.

A 260hp 8400 would be just under 10 ton and that was 25 years ago.
A Fendt 936 is a similar weight to an Optum so the Case is hardly revolutionary, or lightweight for its power.

 

[dave mountain]

A 260hp 8400 would be just under 10 ton and that was 25 years ago.
A Fendt 936 is a similar weight to an Optum so the Case is hardly revolutionary, or lightweight for its power.

ford fw30 265hp - 15t
jd 8400 260hp -10t
puma 240 240hp (260hp boosted) - 8t
everything gets lighter over time, usually at the expense of something else (grip, simplicity, engineering quality etc.)

not saying the optum is revolutionary, but i would definitely class it as a "pocket rocket" for its power class, especially as it is managing to equal the work of a much larger and heavier JD 8530.

 

[oil barron]

ford fw30 265hp - 15t
jd 8400 260hp -10t
puma 240 240hp (260hp boosted) - 8t
everything gets lighter over time, usually at the expense of something else (grip, simplicity, engineering quality etc.)

not saying the optum is revolutionary, but i would definitely class it as a "pocket rocket" for its power class, especially as it is managing to equal the work of a much larger and heavier JD 8530.

I would say everything gets heavier over time. A 7610 was 4 tonne. Even a T5 now is over 5 tonne.

the only 6 cylinder tractor you can buy now that weighs less than 6 tonne is a new Holland T6. John Deere’s have got really heavy.

 

[Frankzy]

Good to hear, quite surprising that a tier 4b/5 6.7L has enough guts to replace an earlier tier 9.0L, usually the newer tier engines lack guts compared to equivalent older ones

The beauty of the FPT engines is that they still only use AdBlue so the engine is free to be as efficient as possible without any interference from EGR, DPF, or de-tuning at low revs.

 

[Will Blackburn]

I would say everything gets heavier over time. A 7610 was 4 tonne. Even a T5 now is over 5 tonne.

the only 6 cylinder tractor you can buy now that weighs less than 6 tonne is a new Holland T6. John Deere’s have got really heavy.

90hp used to mean 6 cylinders now 150hp +

 

[Foxcover]

ford fw30 265hp - 15t
jd 8400 260hp -10t
puma 240 240hp (260hp boosted) - 8t
everything gets lighter over time, usually at the expense of something else (grip, simplicity, engineering quality etc.)

not saying the optum is revolutionary, but i would definitely class it as a "pocket rocket" for its power class, especially as it is managing to equal the work of a much larger and heavier JD 8530.

Nearly all tractors have gotten heavier.

 

[willy]

What kind of mower are you running? We have, a few years ago cut with our MF365 60hp 2 wheel drive pulling a 3m John Deere 1360 moco. Granted I couldn't get to 10kph but don't think there were many cobwebs hanging about after a few days cutting.

I'm not knocking the op as the new Optum is a tidy looking outfit, but to call a 300hp tractor weighing 10.5 ton a "pocket rocket" is a bit of a rash call.

A 3m krone, but the point I was making was it can do little jobs like that and also run a 6m mounted Claydon etc, the jd 8530 wouldn't even fit the mower on.

 

[Finn farmer]

The beauty of the FPT engines is that they still only use AdBlue so the engine is free to be as efficient as possible without any interference from EGR, DPF, or de-tuning at low revs.

F*cking Adblue, our Maxxum just went to limp mode due to "Scr failure". Man with a laptop coming in tomorrow, third time in 4000 hours. Annoying. I'll phone to the dealer if they could remove the bloody thing.

 

[Lakesdigger]

ford fw30 265hp - 15t
jd 8400 260hp -10t
puma 240 240hp (260hp boosted) - 8t
everything gets lighter over time, usually at the expense of something else (grip, simplicity, engineering quality etc.)

not saying the optum is revolutionary, but i would definitely class it as a "pocket rocket" for its power class, especially as it is managing to equal the work of a much larger and heavier JD 8530.

With advances made using computer modelling for r+d and software to protect transmission loads etc nothing is over engineered any more. Possibly why you don't see really high hours out of stuff anymore.

 

[dave mountain]

I would say everything gets heavier over time. A 7610 was 4 tonne. Even a T5 now is over 5 tonne.

the only 6 cylinder tractor you can buy now that weighs less than 6 tonne is a new Holland T6. John Deere’s have got really heavy.

t5.115 is more powerful than a 7610.and pretty much the same weight, would think a t4.105 would be lighter than a 7610 too. I've a 90hp 6 cyl which would be a darn sight heavier than any modern 90hp tractor, still carries the point that for any given power tractors have got much lighter.

 

[dave mountain]

With advances made using computer modelling for r+d and software to protect transmission loads etc nothing is over engineered any more. Possibly why you don't see really high hours out of stuff anymore.

Not sure how true it is but I've heard a few times that according to modern computer modelling the MF 35 gearbox could handle something like 300hp, because they didnt have the technology to be able to let the accountants slash materials out of it when they were designed. In fairness you see a lot with lorry engines in and never heard of a gearbox blowing up, even at 60 odd years old.

 

[Foxcover]

t5.115 is more powerful than a 7610.and pretty much the same weight, would think a t4.105 would be lighter than a 7610 too. I've a 90hp 6 cyl which would be a darn sight heavier than any modern 90hp tractor, still carries the point that for any given power tractors have got much lighter.

Going by figures from tractordata.com using just shipping weights, a 7610 Ford would be about a ton lighter, or 33% lighter than a t4.105.
A Magnum 7250 (276hp) would be about a ton and a half lighter than an Optum.
New tractors are heavier

 

[oil barron]

Going by figures from tractordata.com using just shipping weights, a 7610 Ford would be about a ton lighter, or 33% lighter than a t4.105.
A Magnum 7250 (276hp) would be about a ton and a half lighter than an Optum.
New tractors are heavier

I think the tractor data number on a 7610 is for 2wd. But my memory of the series II brochure is 3.something tonne for a 4wd which is still going to be at least 0.5 tonne less than a T5. A T4 is a utility tractor.

you have to remember the horse power definition changed after the 40 series as well. Apples for apples a 7610 would be somewhere between a T5.105 and T5.115

 

[dave mountain]

A magnum 7250 (276hp) would wipe the floor with an Optum and is ton and a half lighter.


Going by figures from tractordata.com using just shipping weights, a 7610 Ford would be about a ton lighter, or 33% lighter than a t4.105.
A Magnum 7250 (276hp) would be about a ton and a half lighter than an Optum.
New tractors are heavier

As much as a magnum sounds nicer (I own one ) I seriously doubt it would match an optum, and by association from the OP wipe the floor with a JD 8530 too?

T4.105 is just over 3 ton, are you seriously trying to tell me a 7610 is just over 2 ton? 7610 and t5.115 are both 4 ton ish. IIRC back in the day a 7810 wasn't much more.

 

[Finn farmer]

Not sure how true it is but I've heard a few times that according to modern computer modelling the MF 35 gearbox could handle something like 300hp, because they didnt have the technology to be able to let the accountants slash materials out of it when they were designed. In fairness you see a lot with lorry engines in and never heard of a gearbox blowing up, even at 60 odd years old.

Damn, should i fit a spinny boy to our 135.

 

[dave mountain]

Damn, should i fit a spinny boy to our 135.

Cummins 6bt, Garrett turbo 40psi boost, you know you want to

 

[DrDunc]

Nearly all tractors have gotten heavier.

Four cylinder loader tractor

1200kg rear counter weight

7 foot 6 muck grab

No water ballast in tyres.....

Tare weight 10 tonnes



Progress

 

[willy]

I was merely giving credit where credit is due, I'm sure we could argue about this and that, but compared to my 8530 she's doing alright and compared to a mf 8735 she's beating it hands down that thing struggled to pull its self along.

 

[willy]

Weight is irrelevant, good set of tyres will easily offset any potential problems, but having a versatile tractor for me is what's important

 

[oil barron]

Weight is irrelevant, good set of tyres will easily offset any potential problems, but having a versatile tractor for me is what's important

What was it about the 8530 that it couldn’t use the mower? Did it have an American style quick hitch frame?