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Farmall & IHC Tractors Discussion Forum
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1206 Farmall Upgrade...

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David Williams

05-21-2006 19:22:09




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I want to put the biggest possible injector pump and turbocharger on my 1206 in order to play with the boys at the local "stock" tractor pulls. Do I look for something from a 1256, 1456, or what? I got a friend that has a 966 and he put a turbo and injector pump off of a 1566. His only problem right now is traction. His motor never pulls down and he doesn't even have the injector turned up. Also, I need a set of 20.8 X 34 rear tires. Have only found them at a Firestone dealer; any ideas?

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the tractor vet

05-22-2006 07:41:06




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 Re: 1206 Farmall Upgrade... in reply to David Williams, 05-21-2006 19:22:09  
Yea you can put a 3LS turbo on it and a pump off a 1456 , but ya will not be able to stay up with the boys that are running what they are callen a field stock 1066 as they could be a 466or a 530 or 570 or i have even seen some guys running a 640 in field stock just so they can get that 7 dollar trophie . Now the next thing to keep in mind is that if ya have the stock rear cast center on it that will be your weak link and them wheels are getting harder to find . Tryen to pull with the big dogs with only 361 cu. in will never cut it . Also you stand a real good chance of maken a lot of spare junk parts doing so.

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David Williams

05-23-2006 19:50:36




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 Re: 1206 Farmall Upgrade... in reply to the tractor vet, 05-22-2006 07:41:06  
Why do you say that the stock rear cast center will be my weakest link. Allow me to quote something that I read in a Farmall history book. "The 1206 was basically a turbocharged 806 from the outside. However, the driveline had been re-engineered to fully account for the horsepower increase. Engineers where questioning the long-term reliability of the 1206 after such a great success with the 706 and 806, senior management would not even consider even a small calculated risk; the 1206 program was thus delayed. When the final product was officially introduced, the drive line was right". As I dug into finding out more about what this mean't. Part of what I have found out is that the 1206 has thicker bull gears and larger housing along with a larger axle. Perhaps they did produce some 806's and just put turbo's on them and nothing else was modified and sold them as 1206's until they realized..whoops, we better take another look at this. So what have you seen fail? I'm not going pro or anything like that, just gonna play with the locals.

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chadd

05-22-2006 10:14:52




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 Re: 1206 Farmall Upgrade... in reply to the tractor vet, 05-22-2006 07:41:06  
Good point. Every "farm stock" 7,9,10,1466 I've seen around here has had at least a DT-466A in it. Some that I have seen have been DT-466C's. There is nothing stock about them.



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the tractor vet

05-22-2006 17:21:13




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 Re: 1206 Farmall Upgrade... in reply to chadd, 05-22-2006 10:14:52  
And just take a look at the head of the injection pump most of the poor boys are running a 13 MM head pump and the boys that have some scheckels in there pockets are running a 15 MM hypermax pump in farm stock along with a tricked out 3 LM charger and some are even running a Holeset till they get caught then they go back to the 3 LM or try the 3 LS tricked out till they get caught again . There is nothing PURE STOCK in tractor pulling anymore and as in all motor sports it is the man with the biggest check book that walks away with the 7 dollar trophie.

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David Williams

05-23-2006 19:29:27




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 Re: 1206 Farmall Upgrade... in reply to the tractor vet, 05-22-2006 17:21:13  
Believe it or not the pulls we have are way, way behind the times. Our trophies cost about 3 bucks and 95% of what shows up to pull, they just came out of the field or is somebody's clunker just sitting around. There's an "over 12,000 lb class" that I watch a JD 4430 take it every year. I want to take this 1206 that I just purchased and walk the dog all over him this year; i.e. take it down to the fence just past the 300 ft mark with as much speed and torque I can give it. Give the crowd and 4430 guy something to remember. He makes a slow but solid pull and never has any competition. I think when I repaint it I'm going to even leave the "Turbo" emblem off for now and put a set of "806" plates on the side. Most won't know the difference and I can count on my fingers the names of those who will and they'll get a kick out of it. Like I said, we're small and not with the times. Wasn't the 1206 rated at 120 hp? And if I just turn up the pump, how much do you think I can get out of it? I read where the JD 4430 is rated at 125 hp.

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Nat 2

05-22-2006 05:30:17




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 Re: 1206 Farmall Upgrade... in reply to David Williams, 05-21-2006 19:22:09  
He doesn't have the injector pump turned up? The heck he doesn't!

Just like chadd says below, the only difference between the 966 and 1566 injector pumps is how they're set.

For your 1206, the stock injector pump should still have some adjustment to it. It'd probably be cheaper to take it somewhere, put it on the dyno, and have a qualified diesel mechanic turn the injection pump up.



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chadd

05-22-2006 04:40:41




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 Re: 1206 Farmall Upgrade... in reply to David Williams, 05-21-2006 19:22:09  
I may be wrong, but I think the only difference between the injection pump of a 966 and a 1566 is how it is set, so essentially, by changing pumps, all he did is turn up the injection pump. I am not really sure what direction you should go with your 1206. I know our 806 was turned up to 105 horsepower with the stock IH RD injection pump and no turbo. I am sure someone else will have the info you seek. Is there a size restriction on the tires you can run at your pull? I am curious, because 1206's came from the factory with 18.4-38's stock. I read in one IH book that they used 38's because they had enough power to spin 34's off the rim and to tear the cords in the sidewalls when they hooked up. Don't see many 1206's in our area, though, so that may not be true. Good luck with your project.

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