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Massey Harris & Massey Ferguson Tractors Discussion Forum
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V8 Powered Tractor,s

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kirk in ks,.

07-21-2006 05:16:04




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I was wondering why Massey and other,s that used to have V8 diesel,s in their tractor,s,
Dont use thenm anymore?
Is it that V8,s have a different character for a tractor than six,s?
Or is it that V8,s are maybe expensive to fix?
i hope it,s not a copy cat syndrome between maker,s,
Or is it that V8,s run at a higher speed
copared to a six that run,s at maybe 21 to 2,200
RPM,S?
Also , maybe people think that if your running higher R,s, that it will wear out faster, or be more wear on part,s faster,
any one of these thing,s I dont believe,
maybe it was just up dating to the electronic
control box,s that most tractor,s have nowday,s,
And it was simpler to adapt to the engine,s currently out, or that the maker,s just got a good deal on their engine,s , & wanted to stay with them,or maybe it was dumb emission,s,.
or maybe it was easier to get simple power out of a turbocharged six than a v8,
i just wish there were more V8,s out there, cause I sure like the sound, and design of them,
Man, O Man, they just scream, and scream,for more,
And the torque is Incredible!
K,C,

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Gerald J.

07-21-2006 09:58:49




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 Re: V8 Powered Tractors in reply to kirk in ks,., 07-21-2006 05:16:04  
Some tractors with V8 diesels had short lifetimes and some said lower low speed pulling torque compared to a longer stroke inline 6. Its probably more of a difference of stroke than V versus straight. The longer stroke gives the con rod more leverage on the crank shaft and the upright inline engine can accomodate a longer conneccting rod to reduce the side thrust on the pistons for longer life and a bit better efficiency than the compactness needed for a V8 to keep it fitting between the corn rows. That width limit keeps the V8 stroke short and the con rods short making for more sided thrust at the pistons and less leverage on turning the crank.

Gerald J.

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Roy in UK

07-22-2006 13:14:46




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 Re: V8 Powered Tractors in reply to Gerald J., 07-21-2006 09:58:49  
Where my brother used to work they had 2 simliar trucks. One had the Perkins 6/354 T 6 cylinder turbocharged engine, the other had the Perkins V8. He said although the V8 was rated at a higher horsepower, when it came to going up hills with a similar load on board , the one with the 6 pot left the V8 behind.



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