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Author Topic: intake/crankcase stuff  (Read 2107 times)

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Offline 3000 FPS

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Re: intake/crankcase stuff
« Reply #10 on: March 24, 2016, 10:34:47 pm »
Quote from: 1manband on March 24, 2016, 04:33:11 pm
Quote from: 1manband on March 23, 2016, 03:09:18 pm
side note:  the intake/crankcase res formula, much like exhaust formulas, are based on sound waves.  through experiments, folks found that they approximate physical testing of pressure waves.

sidetrack to some pressure things.  intake-crankcase tuning is interrelated to porting. since the size of the hole also affects the intake/crankcase Hz. this helps show what is ideal.

interesting thing at transfer port just close at higher rpm.

from reference #2 below.

......i see nobody caught my drift on the interesting comment?......will be back, have to draw something.

Are you referring to the sound waves and pressure waves being similar to one another.
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