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Re: super m output


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Posted by Red SW6 on October 21, 2008 at 08:00:10 from (209.115.177.222):

In Reply to: super m output posted by Dr. Bert on October 18, 2008 at 17:57:07:

Hi,

Here is what I did to my SM to make 65-70hp>>

4 1/8 flatops, 450 cam. Rejetted the carb, heavier gov. spring.

I do my distributors on a syncro graph, try and hit 22-25 degrees total at full rpm. If you look up the specs for the distributors there is a degree reading for several different RPM's on the way up to full RPM. You can check that with a timing light and a digital tach right on the tractor. I'm not convinced more advance is the answer. As engine horsepower went up in the C-248/26/281 engine series, total advance went down. All of my tractors run distributors, and they have great bottom end lugging power.

HTH

Ken



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