747 & 4cyls

[Scot Sealander]

Garfield Willis wrote:

> But since speed-density gets the density and air mass directly
> from IAT and MAP, except for the exhaust pressure errors, it simply
> thinks we're sucking only 75% of maximum, and fuels accordingly. So it
> ends up pretty close; at least "close enough for who it's for". :)

You do realize that the '747 (stock) does not use the IAT input?  
It strictly uses engine temp as a ref for air temp. With some of the 
emission requirement gone, you could re-write some of the code in 
the PROM to read an added IAT.  The hardware is there.

Scot Sealander
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