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Post by broyager on Nov 20, 2023 0:57:15 GMT -5
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Post by billwill on Nov 20, 2023 9:01:11 GMT -5
I've been seeing this image get posted around on facebook in multiple groups and its very interesting. I was very close to getting one of these newer Athena cylinders for my prebug but opted for the stage6 mk2 instead. Really curious to see how these compare and perform.
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Post by broyager on Nov 28, 2023 5:17:39 GMT -5
This is the result of a transcribe and translate of this www.youtube.com/watch?v=OGYiifWu8B4, re port timings. tldr; Stock is 196 and 125 for transfers. His mods are to open out the boost exhaust ports, but not too much, lower the cylinder with thinner gaskets, I think, to get 192 and raising the transfers to 130. He also sets squish at 0.8, and talks about opening up the squish band, which I assume he means, put a slight angle on it toward the chamber. Also opens the exhaust port exit slightly to match whatever exhaust he is using.
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