volumetric efficiencies (VE)

Thanks guys.
Had a look at the link scuba gave me, according to the link it can be calculated if you got the mass air flow rate. But this is kind of hard to accomplish without the modern electronics in the engine (Mass air meter and the intake temperature).
So, I guess that the only option is to estimate the VE.
Low performance engine 75-80%
High performance 80-85%
Allout race engines 90-100% or even more..
:read2: :dontknow: