Author Topic: Race chain practice  (Read 2947 times)

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Offline Sierrawoodsman

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Re: Race chain practice
« Reply #20 on: May 02, 2016, 05:26:30 am »
I'll run it in the morning and see if those cookies smooth out.


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Offline mdavlee .

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Re: Race chain practice
« Reply #21 on: May 02, 2016, 07:41:03 am »
It will be smooth. You can get too narrow and the bar binds in the wood.

Offline adam32

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Re: Race chain practice
« Reply #22 on: May 02, 2016, 11:16:13 am »
I do 3 strokes and only on the upper 1/3 of the cutter. Make it too thin and it turns into an Art Martin chain...

Offline Cut4fun .

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Re: Race chain practice
« Reply #23 on: May 02, 2016, 12:44:50 pm »


Yes kevin has a good point about that. it makes a lot of sense to do that so you can understand how much gain you can expect from doing each of those little things.I'm going to try that next go around. I still can't for the life of me figure out more of the square did beat stock round.I think next time I may submit a stock chain as well. i'm thinking there must be some variability in stock chains too. Also, Was that a soft wood or hardwood cant? I just remember him saying that it was a beam that he had from his old barn that was probably from the 1800s.


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I believe that he was jokeing about the barn beam.

LOL yep that beam was sold and inside a house now to be used as a fire mantel.

Cants were white pine. 

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Offline Cut4fun .

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Re: Race chain practice
« Reply #24 on: May 02, 2016, 12:52:09 pm »
Going to repost some info here from a old site I helped run.

Ive seen some racechains with the outside of the tooth lightly grinded, i suppose its for a more square tooth and a narrower cut. I was wondering how to do this?     I have heard or putting it backwards on a saw and the use of a stone,but sounds dangerous to me

Are you talking about stoning the cutters or actually thinning the cutters from the outside?

Stoning the cutters

I was told long ago to use about a 8" flat diamond sharping stone.

A cheap 8" whetstone will do it for you.
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Offline Cut4fun .

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Re: Race chain practice
« Reply #25 on: May 02, 2016, 12:53:50 pm »
Some info from troutfisher a member here. 

Some good solid info here, pics of tunneled out cutters, ground rivets, dog boning tie straps......

http://www.madsens1.com/PDF/RacingTechfacts_93099.pdf

Offline Cut4fun .

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Re: Race chain practice
« Reply #26 on: May 02, 2016, 01:07:55 pm »
Another level I wouldnt worry about for a long long time.

Thinning cutters from the inside and then adding oregon 76LG drive links.

Just saving troutfisher Aric pics of thinned inside cutter.






Offline Cut4fun .

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Re: Race chain practice
« Reply #27 on: May 02, 2016, 01:11:48 pm »
Found a ole post of mine from 2011. Says the thinned chain was only 1 tenth quicker then my #2 non thinned chain.

repost = My best 3ci  thinned cutters full out lightened grinded down  rivets and polished smooth chain was only 1 tenth faster then my best 3ci non thinned chain that didnt have any other work to it besides cutters ( no raker work or anything to look like a stock square filed work chain).

It still comes down to that  cutter file job. I seen nice looking race chain that wouldnt cut for chit from same guy that could turn out a good one IF he wanted too. Lot of culled chains to get to those true fast race chains for the show.
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Offline Cut4fun

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Re: Race chain practice
« Reply #28 on: May 02, 2016, 01:33:36 pm »
John Reilly shows before stoning chain cutters and after video.


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Offline Cut4fun

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Re: Race chain practice
« Reply #29 on: May 02, 2016, 01:38:44 pm »
John Reilly shows his way of stoning cutters

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