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Engine Air Consumption

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Old Jun 30, 2004 | 08:22 PM
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Default Engine Air Consumption

Could someone tell me how to calculate air consumtion of engine in CFM.

and if anyone has already done this calculation could they tell me what it is on a cossy.

cheers
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Old Jun 30, 2004 | 08:25 PM
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depends on head and cr m8
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Old Jun 30, 2004 | 08:26 PM
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ok well just for a base on a bog standard engine

curious to know something
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Old Jun 30, 2004 | 08:32 PM
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2 litres per 2 revolutions surely. assuming perfect flow, ie no vacuum due to port restrictions.
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Old Jun 30, 2004 | 09:17 PM
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28.31 litres to one cubic foot

Remember to allow for Volumetric efficiency.

Mark

EDIT for a confusing link

https://passionford.com/forum/viewto...329&highlight=
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Old Jun 30, 2004 | 10:35 PM
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It depends on a number of factors, there is an equation, but its in one of my books I lent a mate....ill see if i can get it back.

Involves capcity, volumetric effiency, engine speed and pressure ratio if i recall correctly. Ill try n find it!
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Old Jun 30, 2004 | 10:49 PM
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Ryans trying to work out how much bhp his turbo-zet is going to give him

http://www.autospeed.com/cms/A_0237/...popularArticle
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