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John Deere Tractors Discussion Forum
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Re: 830 horsepower increase

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BushogPapa

01-21-2013 17:41:31
173.88.51.117



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Work on the INLET Side all you can..maybe an improved Cam would help..




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wsm

01-22-2013 04:23:37
192.189.192.102



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 Re: 830 horsepower increase in reply to BushogPapa, 01-21-2013 17:41:31  
What hp can i reach being realistic? Maybe around 90-95? I am just trying to find out what can be reached without turbos and still have a daily usable tractor. Thanks for all of the help. Scott



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buickanddeere

01-22-2013 06:22:49
184.151.61.51



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 Re: 830 horsepower increase in reply to wsm, 01-22-2013 04:23:37  
That engine is already peaked out to make 75HP without excess smoke. If really built for extra airflow it could break the 100HP at pto speed but there would also be a lot of smoke and extra heat.



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wsm

01-22-2013 06:37:07
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 Re: 830 horsepower increase in reply to buickanddeere, 01-22-2013 06:22:49  
Thanks for all of the help. Just trying to learn a little. Scott



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gtx1967jewison

01-22-2013 16:02:34
174.253.144.217



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 Re: 830 horsepower increase in reply to wsm, 01-22-2013 06:37:07  
Ask the guys over on the pulling forum. Problem is getting them to spill the beans. You will need large buckets of $ also. In my opinion you should be able to get 80-85 just opening the rack all the way. With pump/ injector work & 20% rpm increase 90-95hp. I wouldnt work it in a field that way, set rpm back to stock & dont load it heavy, but it should make close to that. Bigger intake valves, head work & a cam will help alot as has been mentioned.

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BushogPapa

01-22-2013 22:32:33
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 Re: 830 horsepower increase in reply to gtx1967jewison, 01-22-2013 16:02:34  
Look up "Full Strut" on Youtube...

Those 2-cylinder Diesels are impressive...

A properly set-up JD Diesel (2-Cylinder) will have a throttle response just as quick and peppy as a healthy Gas 2-Cylinder and NOT smoke..until late in the pull..

Ron..



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gtx1967jewison

01-23-2013 07:07:22
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 Re: 830 horsepower increase in reply to BushogPapa, 01-22-2013 22:32:33  
Thats a fun video! - but thats likely a $15k engine, with zero usability off the track



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BushogPapa

01-23-2013 09:01:24
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 Re: 830 horsepower increase in reply to gtx1967jewison, 01-23-2013 07:07:22  
Few "Pulling Tractors would do well doing "Field Work..but I'd bet that 830 would be at home under "normal loads" for an 830...

Wonder what the hp WOULD BE FOR THAT 830 AND 720..??..!!!!!!

They sure don't Pull-Down..!!!

A fellow here that pulls in Plain City, Ohio has a JD 70 D that is one that is just a pleasure to hear and see pull... it has that Crisp throttle response..even at at Idle, of a good sharp "Gas" JD and does NOT smoke a lick under what would be a load a normal 70 would be over-loaded and acts like it has not even been hooked to the sled...!!! I know he said it had a different Cam and the Injectors were re-worked, with a Higher cracking pressure...not aware of what else may have been done.. Ron.

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