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Re: International V8 in Farmall M

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slinger

01-09-2009 12:13:33




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[quote="scott in SF"](quoted from post at 18:14:31 02/06/08) Honestly, why would anyone want to do this. The M motor is ideally suited to the tractor. They are tough and economical. Cheap and easy rebuilds. With a little work on the governor, distributor and carb they make amazing power. If you want something for the freak show have at it. But I am not sure the tractor would be any good for what it was ment for, that is farming.[/quote]
why wouldn't some one want to do this. putting a v8 in a tractor makes one powerful tractor. i am looking at getting a farmall m with a weak engine. i am planing to put i v8 in it rather than rebuilding the inline. V8=more power

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NEsota

01-10-2009 12:29:02




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 Re: International V8 in Farmall M in reply to slinger, 01-09-2009 12:13:33  
Garytomaszewske, Without putting a lot of thought into it, I am not sure that it makes any difference if the configuration of a six cylinder engine is straight or V, if it is a four cycle each cylinder will be in the power stroke once every 720 degrees of crank rotation. If it is two cycle, then every 360 degrees.



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dp in nd

01-09-2009 15:55:01




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 Re: International V8 in Farmall M in reply to slinger, 01-09-2009 12:13:33  
I was wondering how an inline engine has more power than a v style.. As long as the bore and stroke are the same , along with the whole rotating mass is the same, The power should be the same????? What am i missing ????? ???



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garytomaszewski

01-09-2009 18:32:06




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 Re: International V8 in Farmall M in reply to dp in nd, 01-09-2009 15:55:01  
For simplicity; an inline six has a power stroke every 60 degrees of crank rotation and a vee six has a power stroke every 120 degrees; torque is force around a point(angular acceleration) and HP is a function of torque and rpm. Been over 40 years since an physics classes so this is the best I can do.



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john d

01-09-2009 18:41:36




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 Re: International V8 in Farmall M in reply to garytomaszewski, 01-09-2009 18:32:06  
I think you'll find that inline 6 has a power stroke every 120 degrees.



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garytomaszewski

01-09-2009 19:45:56




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 Re: International V8 in Farmall M in reply to john d, 01-09-2009 18:41:36  
YEP, takes 2 revolution of crank to bring everything back to starting point 720*, and with a v6 and two cylinders on each crank throw each throw is bring twisted every 240*. Torque is a function of force times distance from a pivot point. Put a fishing scale on a torque wench, and pull x pounds on the scale, then put a 1 foot cheater on the torque wench= only half the pull on the scale to get same reading of torque. Way deeper than I intended to get, but the original statement stands; Equal CI and speed an inline engine has more torque than a v type

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john d

01-09-2009 16:52:55




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 Re: International V8 in Farmall M in reply to dp in nd, 01-09-2009 15:55:01  
V8 engines tend to be larger bore and shorter stroke than an inline 4 or 6. The length of an inline engine can be shorter if the bore tends to be smaller. Inline engines tend to have longer strokes than V8 engines for this reason. Because most V8s are "over-square" with a larger bore than stroke, they can usually be revved to higher rpm limits than their longer-stroke cousins.
An old M or SM engine tends to hit its torque peak at a much lower rpm than a comparably sized V8. There have been some nice looking installations of IH V8 truck engines in Farmalls, but they won't lug a heavy load at 1200 rpm like the old 4 cylinder engines would.
On the subject of the M rear end, it will generally handle the increased power quite well unless the tractor is weighted heavier in an attempt to pull a bigger load, or the operator insists on doing heavy tillage in 4th gear.

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garytomaszewski

01-09-2009 14:25:56




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 Re: International V8 in Farmall M in reply to slinger, 01-09-2009 12:13:33  
Cubic inch per cubic inch an inline engine has more torque than a v-type. Big deal you say I'm talking HP, well HP is a function of torque, low torque=low HP. It is one thing to do it to say you can, quite another to make something useful.



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Paul from MI

01-09-2009 13:12:16




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 Re: International V8 in Farmall M in reply to slinger, 01-09-2009 12:13:33  
Farmall M's did not have the strongest trans/rear ends in the world. Adequate for the original engine, but!! Go for it if you like fixin' 'em. Just my opinion.
Paul



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Old 1970's Puller

01-10-2009 11:35:38




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 Re: International V8 in Farmall M in reply to Paul from MI, 01-09-2009 13:12:16  
In the early days of tractor pulling many an M had a blown 427 Chevy or 426 Hemi in it.



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davpal

01-09-2009 18:02:04




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 Re: International V8 in Farmall M in reply to Paul from MI, 01-09-2009 13:12:16  
M doesn't have a strong rear compared to what? They are really built strong. We have plenty of them in this neck of the woods that are running 400 hp V-8's doing tractor pulling every weekend with zero problems. Any IH V-8 would be no problem in one of them.



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Andy Moncman

01-09-2009 12:51:34




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 Re: International V8 in Farmall M in reply to slinger, 01-09-2009 12:13:33  
My neighbors have a couple they use the as pulling tractors. Fun to watch on those hot summer nights. They go to about 5 different tracks to pull a sled that has a transfer weight box on it. They try to pull the sled 300ft. as the box moves forward on the sled. Most tracks start with the antique class (your standard Farmall M) Modified 3000 (V8 limited to 3000RPM) Modified 5000 (V8 limited to 5000 RPM)
farm stock and super farm stock. They also pay to play and recieve prize money based on their finish.
Most never come out ahead just braggin' rights.

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num hutz

01-09-2009 12:35:55




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 Re: International V8 in Farmall M in reply to slinger, 01-09-2009 12:13:33  
Sometimes it low stimuli. Some poeple like em not me just an opinion.



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