[s-cars] RE: Math quiz: turbo compressor choices

FvAMI at aol.com FvAMI at aol.com
Sun Mar 14 03:05:56 EST 2004

In a message dated 3/12/04 7:49:09 AM Pacific Standard Time, mlped at qwest.net 

> Even so, a VE claim of 348% seems pretty high, ... and it gets higher if
> you bump up the driveline loss adjustment (.83), i.e. 361% at 80% etc.
I assume VE is Volumetric Efficiency!

If so ... I believe the VE (Volumetric Efficiency) is independent of boost by 
definition ... I assume you guys are trying to calculate a "Virtual" VE ... 
which could be defined as VVE.

So with a Ve of 83% and 2.5 bar absolute pressure the VVE = ....

I think we could claim our 2.2 liter engines have a "Virtual" displacement of 
5.3 liters at 2.5 bar absolute ... but claiming it had a 5.3 liter 
displacement would be incorrect.

Best regards,
Feico van der Laan

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