[Diy_efi] Speed-density vs. MAF/MAP...

Shannen Durphey shannen at grolen.com
Sat Feb 1 01:11:30 GMT 2003



Adam Wade wrote:
>
> 
> > The disadvantage is that MAF sensors are flow-
> > direction insensitive (the output signal is
> > essentially proportional to the full-wave rectified
> > flow).
> 
> Good description!  Yes, that's it exactly.
> 

> 
> > I think it would be best to have a MAF sensor that
> > is flow direction sensitive.
> 
> That would be nice, but the ways I can think of would
> introduce a flow restriction.
> 
Are the Karmann Vortex mass air sensors direction neutral?  I thought
the disign relied on air entering a specific side of the sensor.

Shannen

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