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MB offering 40hp Kohler
http://mudmotortalk.com/mmt_v2/viewtopic.php?f=2&t=2860		 Page 1 of 1
Author:  Allterrain [ Mon Jun 29, 2009 10:55 am ]
Post subject:  MB offering 40hp Kohler
http://www.excelboats.net/Mud%20Motor%2 ... %2040.html
Author:  dux [ Mon Jun 29, 2009 5:28 pm ]
Post subject:  Re: MB offering 40hp Kohler
Two models......999 cc.....interesting. I take it the Mercury Hydraulic Trim means the same package that Merc outboards use?
Author:  craig [ Mon Jun 29, 2009 5:57 pm ]
Post subject:  Re: MB offering 40hp Kohler
Spec. wise, the 35 Vangaurd And 40 Kohler are very close.

35 Vangaurd
cc's - 993
Bore - 86 mm
Stroke - 87 mm
Compression Ratio - 8.2-1


40 Kohler
cc's - 999
Bore - 90 mm
Stroke - 78 mm
Compression Ratio - 8.8-1
Author:  deadbird8 [ Mon Jun 29, 2009 8:16 pm ]
Post subject:  Re: MB offering 40hp Kohler
Author:  Duck Natzi [ Mon Jun 29, 2009 8:17 pm ]
Post subject:  Re: MB offering 40hp Kohler
Author:  whackem [ Mon Jun 29, 2009 8:29 pm ]
Post subject:  Re: MB offering 40hp Kohler
Author:  mudd [ Mon Jun 29, 2009 9:08 pm ]
Post subject:  Re: MB offering 40hp Kohler
that did make me laugh!
Author:  dead animal [ Mon Jun 29, 2009 9:11 pm ]
Post subject:  Re: MB offering 40hp Kohler
Author:  craig [ Mon Jun 29, 2009 9:14 pm ]
Post subject:  Re: MB offering 40hp Kohler
6 cc's is not a big difference.
Author:  POKER1 [ Mon Jun 29, 2009 9:22 pm ]
Post subject:  Re: MB offering 40hp Kohler
Author:  Gigafowl [ Mon Jun 29, 2009 9:31 pm ]
Post subject:  Re: MB offering 40hp Kohler
I asked my GD man bout the 40 Kohler and his reply was that it had the hp alright but not the torque they wanted on the low end...

I would love to see a torque curve comparison to the 35 and 36 hps that are already the mainstay of the MM market.... If the power is all on the hi end of the rpm band - it won't fit the application of a MM...
Author:  craig [ Mon Jun 29, 2009 9:33 pm ]
Post subject:  Re: MB offering 40hp Kohler
Author:  deadbird8 [ Tue Jun 30, 2009 6:31 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  deadbird8 [ Tue Jun 30, 2009 6:38 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  River [ Tue Jun 30, 2009 6:46 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  craig [ Tue Jun 30, 2009 6:51 am ]
Post subject:  Re: MB offering 40hp Kohler
No i tough myself that building engines. Particularly, 383 Stroker engines.
Hence the stroker part.
Author:  River [ Tue Jun 30, 2009 7:09 am ]
Post subject:  Re: MB offering 40hp Kohler
Ok,

My point was that your little offhanded trying to be sly statement didn't make much sense.


When in fact, when you shorten stroke or length, you reduce Torque.

Power is the rate at which work is done or energy is transmitted.


Torque is a factor, but not the sole or single factor in the power equation.


Need any more physics lessons call me.
Author:  quackconsumer [ Tue Jun 30, 2009 7:16 am ]
Post subject:  Re: MB offering 40hp Kohler
I keep my mouth shut in most of these engine related topics because unlike some, I know that I don't know enough to comment.
Author:  River [ Tue Jun 30, 2009 7:24 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  craig [ Tue Jun 30, 2009 7:43 am ]
Post subject:  Re: MB offering 40hp Kohler
I'm sorry, I should have used the word torque in place of power. :roll:

And you are right, torque is not the single or sole factor in the power equation. Angular velocity is also used to formulate power when characterizing rotational systems.

Power put out by an engine is equal to the force it exerts (Torque) multiplied by its angular velocity (RPM). If you shorten the stroke of an engine, you then lesson the force it exerts (Torque)

With that being said, I stand by what I said earlier: If you shorten the stroke of an engine you will reduce power.

Does my offhanded, trying to be sly statement make sense now? ;)

And thanks for the offer on the physics lesson ...............I may take you up on it. ;)
Author:  River [ Tue Jun 30, 2009 7:46 am ]
Post subject:  Re: MB offering 40hp Kohler
So why didn't you say that in the first place?
Author:  craig [ Tue Jun 30, 2009 7:52 am ]
Post subject:  Re: MB offering 40hp Kohler
Because I don't think most people would understand half of what you and I just wrote. Thats why I try to keep it simple, but every now and then SOMEONE forces me to explain things in more detail. ;)
Author:  craig [ Tue Jun 30, 2009 8:20 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  Sand Man [ Tue Jun 30, 2009 8:30 am ]
Post subject:  Re: MB offering 40hp Kohler
So if you shorten the stroke you always reduce the power????

What about if you shorten the stroke and increase the bore?

You boys need to talk apples to apples. :roll:
Author:  craig [ Tue Jun 30, 2009 8:35 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  Mud Slinger [ Tue Jun 30, 2009 8:35 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  River [ Tue Jun 30, 2009 8:37 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  Sand Man [ Tue Jun 30, 2009 8:39 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  craig [ Tue Jun 30, 2009 8:40 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  craig [ Tue Jun 30, 2009 8:42 am ]
Post subject:  Re: MB offering 40hp Kohler
Author:  phowler [ Wed Jul 01, 2009 10:42 am ]
Post subject:  Re: MB offering 40hp Kohler
I for one know enough about the internal combustion engine to know that this thread is in the wrong forum.
Author:  Rail [ Wed Jul 01, 2009 10:01 pm ]
Post subject:  Re: MB offering 40hp Kohler
Building and over square motor has it's advantages in longevity but it will leave something behind in the torque game.. Suck it!.. lol
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