Anyway to calculate port surface area?

General engine tech -- Drag Racing to Circle Track

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Donnie1126
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Anyway to calculate port surface area?

Post by Donnie1126 »

Knowing the port volume and the intake opening area and the valve size?
bill jones
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Post by bill jones »

-never heard of anyone wanting to know the "surface area" but why wouldn't you just figure up the average square inch area, and times that by the length?
-Say the average port SIA is 2.75 and the length is 5.630" long equals 15.48 total square inches of surface.
Donnie1126
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Post by Donnie1126 »

I figure by knowing the surface area we could somehow know the average csa.I'm trying to relate csa and valve lift to a maximum pressure drop.
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