Throttle Body Sizing

[John Dammeyer]

At 01:15 PM 26/07/1996 UT, you wrote:
>
>
>What is VE ?  (Volumetric Efficiency)

So,  if I have this right, then as the piston moves to BDC on the intake
stroke it results in a particular volume opening up;  displacement of the
individual cylinder.  If this is, for example, 50cc, then 100% VE means that
at BDC the pressure inside the cylinder is the same as atmospheric pressure?

ie:  50cc of air/fuel has been drawn into the cylinder?

Would lower values mean that there was still a slight vacuum in the
cylinder?  ie:

VE% = pressure inside cylinder at BDC
     -------------------------------  * 100
     atmospheric pressure



Thanks for the info.

John.


 
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