Actually it was "turbulence" they were after, not "swirl".
- Tony
At 04:10 PM 2/28/2009, Tony Drews wrote:
>One of the circle track motor building articles I read showed the
>top of a piston that had been dimpled (looked like with a center
>punch). The idea, as I recall it, was to promote more "swirl" in
>the combustion chamber.
>
>- Tony
>
>At 02:10 PM 2/28/2009, Terry Stetler wrote:
>>Perhaps the term "port shaping" would better describe what is necessary?
>>
>>Also, it would seem that if you could put a uniform surface texture along the
>>entire port, that would guarantee laminar flow, much as the dimples on a golf
>>ball do, that would be the way to go. But now we are getting into the black
>>arts, and gray areas of the GCR, etc...
>>
>>Terry Stetler
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