Posts Tagged “exhaust tuning”

Recently a well known racing head porter asked for some graphics (pictures) for an article on head port design.  His article dealt with there is more to a head’s performance potential than just CFM flow numbers.

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When we think something is 100%, we typically think it is the best it can be, that is perfect.  One way of rating an engine’s breathing ability is called Volumetric Efficiency. Read the rest of this entry »

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