"Del Johnson, North Point Solutions, Inc" wrote:

Has anyone tried to use the exhaust gases to draw a vacuum.  It would seem
feasible if there was a ventura constriction (which would affect engine
performance) but what about a small stainless steel tube inserted
perpendicular or at some other optimized angle into the exhaust stream?
Some time ago I saw a thread about the Subaru folks doing it to feed the
gyros and that they reportedly had to put a regulator on it to reduce the
vacuum pressure.

At slower engine RPMs you might have to shift to intake manifold vacuum
pressure as the source.

Always looking for better ways to use the wasted energy that is in the
exhaust system!

Delbert Johnson MCSE, MCDBA
North Point Solutions, Inc.
djohnson@North-Point-Solutions.com
517.676.2756

 
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