Re: running rich under boost

[ptimmerm@mashtun.jpl.nasa.gov]

OTOH, maybe its just normal to go rich under boost? Somehow I
doubt it, esp. as the WOT enrichment was disabled for my tests.

Can someone who understands these things make some suggestions?

The car's an '88 5KCSTQ Avant.

>>>>>>>>

In the Bosch Fuel Injection book by Probst, he says that there
is enrichment by boost.  The mechanism is the fuel pressure
regulator.  This is a mechanism about 2" * 2" * 5"  mounted 
on the block under the #3 spark plug.  Notice on turbo cars
that there are vaccum (pressure!) lines running from the 
manifold.  The system control pressure increases with pressure
to prevent leaning out.  If you disconnect this line you will
then presumably lean out under boost.  Easy does it though, that
tends to promote detonation.

paul t-