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Kohler question
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Author:  LJHOPP [ Fri Mar 05, 2010 11:49 am ]
Post subject:  Kohler question
I was on the kohler website looking at the specs of the 34hp - 40hp kohler engines and noticed the specs were all the same. So I called the kohler dealer to see where they got the 6 extra hp from and he told me they got the 6 extra hp from the carburetor aspiration.

Since the 34-40hp models are the same but have different carbs on has anybody bought a 34hp kohler and put a mikuni on and then tested the engine to see if it this claim was right and had over 40hp since the mikuni will outperform a stock kohler carb.
Author:  bjg [ Fri Mar 05, 2010 1:28 pm ]
Post subject:  Re: Kohler question
I would bet the 34 hp is about 300/400 dollars cheaper right?
Author:  LJHOPP [ Fri Mar 05, 2010 2:23 pm ]
Post subject:  Re: Kohler question
Author:  craig [ Fri Mar 05, 2010 2:26 pm ]
Post subject:  Re: Kohler question
Author:  LJHOPP [ Fri Mar 05, 2010 2:28 pm ]
Post subject:  Re: Kohler question
When you guys are putting mukuni carbs on your 35/36 van what are your final hp and torque ratings after the upgrade.
Author:  craig [ Fri Mar 05, 2010 2:37 pm ]
Post subject:  Re: Kohler question
I want to say the mikuni adds somwhere between 3-5 h.p. I don't know anyone that has actually put one on the dyno other than maybe EVT. Send drake1 a pm....he could give you more info on the actual hp/torque gains.
Author:  LJHOPP [ Fri Mar 05, 2010 2:41 pm ]
Post subject:  Re: Kohler question
Author:  LJHOPP [ Fri Mar 05, 2010 2:49 pm ]
Post subject:  Re: Kohler question
How much of a difference will a compression of 8:8.1 compared to a compression of 8:5.1 make hp and torque wise.
Author:  craig [ Fri Mar 05, 2010 2:52 pm ]
Post subject:  Re: Kohler question
None.
Author:  LJHOPP [ Sat Mar 06, 2010 9:48 pm ]
Post subject:  Re: Kohler question
Wouldn't a 34hp kohler with a mikuni and a 40hp kohler with a mikuni carb have the same hp and torque ratings, since the 34hp kohler and the 40hp kohler are the same engines, with the same specs, but with different carbs on.

So wouldn't this statement be true?
Author:  craig [ Sat Mar 06, 2010 9:51 pm ]
Post subject:  Re: Kohler question
With all things being equal (bore....stroke......rpm.........comp. ratio......etc...) yes. It would be the same engine.
Author:  bjg [ Sat Mar 06, 2010 9:53 pm ]
Post subject:  Re: Kohler question
Author:  brlcla [ Sun Mar 07, 2010 9:37 am ]
Post subject:  Re: Kohler question
I never noticed that they both had same bore and stroke (61ci)... Restrictor plate in the carb? Hell yea buy the cheaper one and spend the money to buy the mikuni it all the power loss it in the carb setup.
Author:  LJHOPP [ Sun Mar 07, 2010 4:21 pm ]
Post subject:  Re: Kohler question
Author:  50fps [ Sun Mar 07, 2010 8:32 pm ]
Post subject:  Re: Kohler question
The cam is different also.
Author:  LJHOPP [ Sun Mar 07, 2010 9:05 pm ]
Post subject:  Re: Kohler question
If you google oem cams for 34hp kohler the sites say the cams are for 34-40 engines.


http://www.midwestsupercub.net/kohler_command.htm
Author:  50fps [ Sun Mar 07, 2010 9:32 pm ]
Post subject:  Re: Kohler question
36,38,40 hp
Part #62 010 05-S

34 hp
Part #62 010 04-S


Although the carb plays a big role also.
Author:  LJHOPP [ Sun Mar 07, 2010 9:51 pm ]
Post subject:  Re: Kohler question
Author:  LJHOPP [ Sun Mar 07, 2010 9:55 pm ]
Post subject:  Re: Kohler question
Author:  LJHOPP [ Sun Mar 07, 2010 10:12 pm ]
Post subject:  Re: Kohler question
Does anybody know what the difference is between the 34hp kohler cam and the 36-40hp kohler cam.
Author:  coondik [ Mon Mar 08, 2010 10:55 am ]
Post subject:  Re: Kohler question
what about timing advancements?

might could gain a lil' sumtin' by tweakin' dis as well!
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