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Author Topic: Full circle cranks - anyone using?  (Read 2289 times)
leec
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« on: June 29, 2015, 09:09:19 am »

Hi guys,

What's the deal with these cranks. Understand the logic but are there any other pros and cons I need to know
Lee
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leec
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« Reply #1 on: June 30, 2015, 06:26:10 am »

Anyone?
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RhoadsVW
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« Reply #2 on: June 30, 2015, 07:34:18 am »

I used a couple of them. One was a 78 from Bergman and the other was an 82 from Demello.  Thought I would buy into the theory but didn't think either cranks made a difference.  But they are sure heavy. I believe the theory was more weight within the crank and less on the flywheel. Returned to using the counterweighted cranks.  Dave Rhoads
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Der Renwagen Fuhrers
Erlend / bug66
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SCC Event


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« Reply #3 on: June 30, 2015, 08:25:05 am »

What's the point in having extra weight on the piston/rod side?

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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018

The '59:
Not yet..
Bruce
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« Reply #4 on: June 30, 2015, 10:56:04 am »

What's the point in having extra weight on the piston/rod side?
The so-called "full circle" crank that DMS makes is not made to add weight to the piston side. It makes the two cheeks between opposite throws wider to make the crank stiffer.  Just like what VW did to when they made the waterboxer crank.
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leec
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« Reply #5 on: June 30, 2015, 17:22:23 pm »

Thanks guys
So is it a good choice for a 13:1 2276cc comp eliminator motor with ti valve?
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