Just bought a 1466 IH 1976 model, was wondering what kind of horsepower they put out from the factory. I have heard they rate them at 135 horse, but what are they on the dyno, and can you turn them up a little without hurting them?
 
175 HP will not put a lot of strain on the tractor.

I have as 1086 with 170 Hp for the last 7000 hours and no problems yet.

Gary
 
Not an international guy but our local case dealer turned a 1066 up to 250hp for a guy hasn't hurt it yet.
 
I thought I heard somewhere 210 is as high as you can go with the stock pump, though some tractors are more lively than others. Jim
 
do you actualy pul it or is it a loder tracto the 1486 had truble with there rearend running 150 not to mention the 1586
 
It is going to be a field tractor,disc, field cultivator, and chisel plow, may end up on the round baler also since it has 2 pto's.
Right now I have 4440 John Deere that just don't like the 26 foot field cultivator very well.
Thanks for the input.
Chris
 
Factory rated was 118hp on the drawbar and 133 0n the PTO, The 436 engine was used in many IH tractors in the 1586 it was rated up to 160 pto.I maxed out stock pump and turbo on my 1566 once to see what it would do on a dyno 280hp.I didn't keep it their but took it back to 220 and lived fine.
 
I don't know, not an international guy, they put it on the Dyno and it was 252. My brother works at the case dealer and was telling me about it.
 
Early models were about 135 factory advertised, later ones about 146 pto. Sure you can set them up. Sky is the limit. People with 200 hp 1466 are definetely not glueing that tractor to the ground and using all of that horse power. Ask them how much fuel they burn per hour. You won't get more than about 15 hp per hour per gal of fuel. Do the math. Replaced a ton of rear ends in those tractor with factory set pumps.
 
Yea ya can turn the wick up but like Pete said rear ends are the weak point and i have seen what the transmissions look like also with the wick turned up . Now i am not sayen that ya can get by as our 1066 is wound for sound and we are pulling five DMI parabolic deep rippers with 7.5 inch tiger points in the humps and bumps in N. E. Ohio at 14 inches . But i would rather have a 4366 I H -1805 MF -440 AC- small Stagier to do the tillage with then the 1066 or even a 1466-86 . Should have never sold my 1805 Massey it was great fill the tank and do the tillage and put it away . Took me longer to plant then work ground. Then you can PULL that 26 foot cultivator.
 
I wouldn't turn it past 150 horse, the last thing I would want to do is hurt the old gal. I can take the extensions off the cultivator to make it 24 foot if I need to. I have been told the International engines will put out more power than the rear end will stand up to.
Thanks for all the good replies.
 
More power requires more weight if you want to get work done. Otherwise you are just spinning your wheels.
Seems I do that most days anyways.. :cry:
 
Pulled 24 foot cultivator 22 foot disc and 6 bottom plow set at 170HP or more. Dauls and 15000 pounds of weight.

No rear end problems.

Blew a head gasket when the meter valve went bad in the fuel pump and she was turning 300 HP about 8000 hours ago.
 
IH 1466 series tractors I have been around will max out at around 275H.P. with the stock turbo and basically just all the fuel that the pump will provide.The problem is not the engine but they are known to have drive line problems .Most run 150H.P. stock and they still have been known to break.Your 4440 will handle more power with less problems.MFWD tractors with 125H.P.will out work 150 with out.The good MFDs [that would turn] did not come out until 1983.I had a 1466 I played with last summer that did 290H.P.but only used it on box scraper at fair pull. Dynos can vary 25H.P.
 
He hasn"t weighted it past putting fluid in the tires then. We had one pushing well over 200 hp (think it had a 466 crank in it), when we had it dyno"d the JD mechanic cut the dyno out when it was climbing quickly past 170 at a high idle. When we put weights up front for plowing one year we spun an axle in a wheel center. After that we let her spin a little.

.

The 15"s had a completely different geartrain, with helical gears and planetary finals. I don"t know what it would take to tear one apart, but ours was turned up to the point you could follow its track around the field by the smoke cloud on a still night pulling the chopper. Its smoke was still moving at a very good pace passing the high tension power lines.
 

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