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Allis Chalmers Discussion Forum
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WD HP increases

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Family Traditio

12-28-2003 06:32:16




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what are some cheap, easy HP gains on a WD? intakes, heads, carbs , etc.....




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UUsee

12-29-2003 07:50:50




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 Re: WD HP increases in reply to Family Tradition, 12-28-2003 06:32:16  
Don't mill the head,waste of time on a AC that uses the cylinder for a combustion chamber.The heads are flat so you won't gain squat by milling them.



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L Hud

12-29-2003 06:52:16




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 Re: WD HP increases in reply to Family Tradition, 12-28-2003 06:32:16  
To increase hp and comp. you can run 45 crank and use WD pistons. This will increase the comp. ratio. There are a couple of different pistons. One for propane and a 8000 altitude. Run the late model head with the common things done to it. The late model cams are best, will have to use the cog for a late model on the oil pump. Hope this helps.



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Family Tradition

12-29-2003 07:18:45




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 Re: Re: WD HP increases in reply to L Hud, 12-29-2003 06:52:16  
thanks Lhud!



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Phil Auten (TX)

12-28-2003 14:09:51




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 Re: WD HP increases in reply to Family Tradition, 12-28-2003 06:32:16  
Saame things that work on auto engines work on tractor engines. Increase cubic inches, increase compression, increase valve open time, increase fuel/air flow into cylinders. The cubic inches can be added slightly with oversize sleeves. The compression can be increased with milling the head a bit (don't get too aggressive or you'll end up with a boat anchor). Cams can be reground for more open time on valves. Oversize valves can also be fitted (read $$$$). Porting and polishing the head and manifold allows more air/fuel mix to enter the cylinders. This usually requires a bigger carb too. Electronic ignition should be considered a must here.
Just basic hotrodding stuff.

Phil

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Family Tradition

12-28-2003 16:15:52




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 Re: Re: WD HP increases in reply to Phil Auten (TX), 12-28-2003 14:09:51  
I'm not an idiot..... ..I know this stuff..... I wanted to know some inexpensive things to do..... I don't want to spend a fortune.....already own a 427 CI moline w/ high compression, different cam, milled heads, ported and polished heads.



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DUH

12-28-2003 16:32:21




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 Re: Re: Re: WD HP increases in reply to Family Tradition, 12-28-2003 16:15:52  
I don't think a response like that will get you much help, either.



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Family Tradition

12-28-2003 18:14:55




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 Re: Re: Re: Re: WD HP increases in reply to DUH, 12-28-2003 16:32:21  
If that is the best help I am gonna get, then I just don't need any help then, do I?



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Smitty

12-29-2003 11:47:27




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 Re: Re: Re: Re: Re: WD HP increases in reply to Family Tradition, 12-28-2003 18:14:55  
Yup, you just hit the nail on the head! You don't need any help, you already know it all! Do us all a favor, don't bother coming back!



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Family Tradition

12-29-2003 12:31:54




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 Re: Re: Re: Re: Re: Re: WD HP increases in reply to Smitty, 12-29-2003 11:47:27  
Did I say I knew it all? NO! If i knew it all I would not have came to this site..... .but I do know what builds hp in a motor, I asked what kind of interchangeable parts there were for an Allis that would be cheap and gain HP, I do not want to build another stroker tractor, I have a Moline that I pull turning around 100HP. My wife pulled it and she got scared and wanted something to pull so I wanted to build a mild super farm tractor that she could pull, be half way competetive, and not spend a fortune on it, so I am sorry I bothered all the wise men on your precious site!

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wdTom

12-28-2003 14:32:07




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 Re: Re: WD HP increases in reply to Phil Auten (TX), 12-28-2003 14:09:51  
I don't think milling the head will increase compression much. The surface of the head is flat, no combustion chamcer in it, the combustion chamber is in the cylinder above the piston which doesn't come all the way to the top. You could put in a 45 crank and the power crater pistons. You could put in the cam from a later model, I think they work, like a D-17 or 170. The later "tall"heads may help some, as will the 1/8" overbore kits.

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Chuckster

12-28-2003 08:42:26




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 Re: WD HP increases in reply to Family Tradition, 12-28-2003 06:32:16  
Electronic ignition port and polish the head and manifold put a E gleaner govener spring into the govener hope this helps



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Wayne

01-01-2004 08:49:51




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 Re: Re: WD HP increases in reply to Chuckster, 12-28-2003 08:42:26  
Just a question, what doesn't the Gleanor spring do?
Wayne



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jrj

12-28-2003 07:51:36




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 Re: WD HP increases in reply to Family Tradition, 12-28-2003 06:32:16  
If you want some easy cheap advice,just go to your neighbors. It seems that they have about a dozen old allis tractors that are for sale. They could probably lead you in the right direction.



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acorange

12-30-2003 12:03:03




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 Re: Re: WD HP increases in reply to jrj, 12-28-2003 07:51:36  
I have a WD that has a 1/8 in. overbore kit with higher comp. pistons and breakerless ignition that does 40hp on a dyno.
Not a powerhouse but it has noticeably more power than a stock WD. My 2 cents.....



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Family Tradition

12-28-2003 12:08:04




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 Re: Re: WD HP increases in reply to jrj, 12-28-2003 07:51:36  
they are my cousins..... looking to buy one from them. have a moline now wanting to build a light super farm tractor



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