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Tractor Talk Discussion Forum

What does it mean to keep an engine stock?

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Dalton S.

10-02-2007 18:30:10




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What does it mean to keep an engine stock for pulling? Can you do anything with the tractor? Any advice is greatly appreciated.




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buickanddeere

10-03-2007 20:48:06




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
A stock pulling tractor means its engine's been repainted the exact same shade as the factory did.



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Gary from Muleshoe

10-03-2007 17:25:09




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
I found out early that my JD B can't run with the Big Dogs, so I just stay on the porch.

I like Walt's idea, hope it works. I loved the old days when you just took them out of the field, went to the county fair pulled and then went back to the field. In those days everyone was stock.



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RAB

10-03-2007 14:11:38




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
Walt is right. But who is going to pull the engine apart to find out? Difficult to see where the power is coming from without doing some exact measuring. Not a starter for the puller who just does it for fun, or do you only look at the winning entry?
What about thinned down gears running in thin oil or missing gears for that matter. Someone will do it just for the slight edge over the other competitors. There are always those who want to beat the rest at any cost.

Regards, RAB

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Walt Davies

10-03-2007 15:18:43




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 Re: What does it mean to keep an engine stock? in reply to RAB, 10-03-2007 14:11:38  
Rab, In drag racing you have the right to challenge any car that you think is not legal. If its legal you pay for putting it back together if its not legal the owner has the right to forfeit the race an leave or pay for putting it back together.
Most will just leave if they are not legal this has worked for many years at the drag strip to keep people honest. I can see a lot of tractors pulling out early. Giggle
Walt

I am serious about starting an organization for National Antique Tractor pullers I think we really need something to make the sport more even and honest before we just give it up to the rich who can spend money like its water and win, win, win.

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Walt Davies

10-03-2007 10:00:12




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
When I was in drag racing I ran stock class. we were allowed to bore .20 over and cut .10 from the heads, we could tweak the carb to its best but it had to a factory carb that came with the car. We could also tweak the distributor and make small mods to it. All parts of the car had to be stock seats had to be factory not stripped out to lighten them. We were allowed to run cheater slicks on the rear but front tires had to be stock size. I had a Dodge so i was able to turn the torsion bars up to put more wait on the rear.
Now they have what it called pure stock these cars have to show room ready no modifications what so ever. I think they need to use this at the pulls One clubs here does do that if you even take the muffler off you have to run Category 2 Category 1 must be all stock. That helps those who have a stock tractor compete and have chance to win. What we really need is a national group or club that can set down the rules so all pulls can follow the same set of rules for each class.
Anybody want to volunteer to put it together I would be willing to help get it off the starting blocks I think its about time.
National Tractor Pulling Association sounds good to me. Or NTPA We can setup rules for weight classes and two categories 1 and 2, Pure stock and Stock Modified.
One thing that made me mad last year was i had to run category 2 because my 1945 LA didn't have a Muffler, they didn't have a muffler as an option until 1948 so i was stock but they made the rules and I had to abide. Killed me just because of this. If we get a national organization for people to join and follow one set of rules then little tings like this can be taken care of and make a lot of people happier at the pulls both pullers and spectators.
Walt

WOW sorry for the loong post.

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Don-Wi

10-03-2007 08:47:24




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
I kinda agree with Scotty and the few others who say if it's available for that model from the dealer, even afterwards, it should be considered stock. An overbore kit that the dealer can get from the parent corporation, is fine because if it wasn't, only the high performance companies would offer them.

If you can tweak it without modifying it from stock (stroking, massively rediculous overbore, port & polish, etc...) it shouldn't be a problem.

But then again, I'm not a puller.

Donovan from Wisconsin

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Red Dave

10-03-2007 07:08:26




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
To me stock is whatever was available on that model tractor when it was new, or was made available from the OEM as an upgrade.

For instance, I would consider a Farmall M with oversized, firecrater pistons as stock. A Farmall M with the sleeves removed to run a greatly oversized piston and the crank worked to gain stroke is not stock. A Farmall M with a 450LP head on it running on racing gas is also not stock in my book.

One way to keep them somewhat honest is to have them hook to an appropriate plow or heavy disk and pull it through a field for a couple hours. The heavily modified engines generally can't survive that, they are made to run for 300 feet only.

Just my viewpoint, yours may vary.

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Jack a

10-03-2007 06:39:09




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
Stock means out of the box. Out of the field might be a little different but usually not like the tractors that pull in any stock pulls. They almost all cheat. There is an attitude with many pullers that if you don't get caught it ain't cheaten. And God forbid you call them out on it. You might get shunned by those that run the pulling club. Rules are for the newcomer not for the officers of the club. Goes for many things besides tractor pulling. Glad I got that off my chest.

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John M

10-03-2007 03:52:20




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
If you do anything to it, it aint stock, and I seriously dought that the "stock" tractors are "stock"!



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JRT

10-02-2007 21:19:57




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
My deffinition of a stock tractor is a tractor seldom seen at a tractor pull.



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Janicholson

10-02-2007 19:31:20




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
Don't ask the roundy round guys, the cars they drive have nothing stock about them.
My grandpa had George Washington's cherry tree ax (been in the family a long time). Trouble with it was the need to replace the handle every 10 to 15 years, and the head every 40.

If an engine is not polished, ported, Bored beyond .060" over, running a ignition that came with it and springs on the advance that were original. A cam that specs to the OEM data, and is not stroked to larger displacement. I would call it stock. It would only allow the cleaning up of details, and balancing the components. It would also loose in most pulls, and not be very convincing in the field. JimN

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Bob/Ont

10-02-2007 18:48:40




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
My take on that would be to set it up as it was from factory to work in the field, Gasoline or Diesel.
Later Bob



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phillip d

10-02-2007 18:35:59




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 Re: What does it mean to keep an engine stock? in reply to Dalton S., 10-02-2007 18:30:10  
my guess is that if it was a gas,it had the factory compression,cam specs and so on.Diesel,you didn't monkey around with the injector pump.



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roger roland

10-02-2007 19:12:21




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 Re: What does it mean to keep an engine stock? in reply to phillip d, 10-02-2007 18:35:59  
ya but i bet 90% of the diesel boys adjusted that pump for more power... & said never tuched it



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ScottyHOMEy

10-02-2007 20:41:31




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 Re: What does it mean to keep an engine stock? in reply to roger roland, 10-02-2007 19:12:21  
In the spirit of your definition, I'd say stock is whatever ya can tweak out of the parts that came with it.



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