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Old 10-05-2012, 04:13 PM
birkey birkey is offline
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rpm vs compression

Advice needed for beginner, achieving high rpm seems to be one question on my mind. I understand lighter valvetrain, and rotating assembly along with forced induction, long rods, moderately wide lsa, and single plane manifold along with other factors properly synchronized together will produce fairly high rpm. Now the real question is how does d.c.r. factor in to all this. Is there any certain ratio that people aim for when building these motors?
Is a low compression motor going to have a better chance of achieving higher rpm than a high compression motor?
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