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Author Topic: bore and stroke  (Read 638 times)

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Offline mdavlee .

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Re: bore and stroke
« Reply #10 on: July 28, 2016, 07:09:25 am »
Dolmar 9010 is 43x52
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Offline oldpro

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Re: bore and stroke
« Reply #11 on: November 23, 2016, 11:13:02 pm »
Well when it comes to engine math I get interested. The shorter the stroke the slower the piston speed. Like the old 090 had a really short stroke,huge bore.
Today they go to a longer stroke to have smaller diameter(lighter) pistons.
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