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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Harr Parr 18-25, horsepower with 466 cubes

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Farmall Boy

08-07-2003 12:14:58




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how many horse power do yall think a harr parr 18-25 would have with 466 cubes??? do they have an extremely low compression ratio, or bad head?




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ajax implement

08-08-2003 09:06:05




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 Re: Harr Parr 18-25, horsepower with 466 cubes in reply to Farmall Boy, 08-07-2003 12:14:58  
If this is an 18-27 rowcrop and it has 466 cubic inch displacement they have added an extra 100+ cubes already. You have not said what the rules are for where you pull. stock compression is low, remember this engine was made to burn kerosene.



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RAB

08-07-2003 14:14:41




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 Re: Harr Parr 18-25, horsepower with 466 cubes in reply to Farmall Boy, 08-07-2003 12:14:58  
The horse power rating is the model designator.

18 at the drawbar, 25 at the belt.

No, nothing to do with either of those.

Simply turned slowly. High tech in their day if the term had been invented.

Remember it doesn't matter how big an engine is - at zero rpm it doesn't make ANY power!!
Regards, RAB



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