MAF Conversions

[RABBITT_Andrew at mv8.orbeng.com.au]

'Everyone' talks about MAF conversions of existing EFI systems but can 
anyone answer me a few questions about the whole exercise?

1- what does a MAF sensor offer that a MAP and inlet air temp sensor 
don't?  (or what do people think it offers?, ie what are the main 
reasons for the conversion?)

2 - are analogue (voltage) output devices used more commonly than 
frequency output?

3 - how are they normally sampled in these conversions, synchronously 
at a determined crank angle, synchronously at any angle at all, or 
asynchronously?

4 - how do you know that the airflow you're measuring is actually 
there?  Do people just slap them on and hope, or is some science 
applied to make sure inlet manifold resonances are not upsetting the 
signal?

5 - How about reverse flow?  Is this any concern in the average 
conversion?

6 - what kind of manifold filling compensation do people use?

Thanks for your replies in advance

Andrew Rabbitt
Orbital Engine Company