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Simple-minded turbocharger ruminations ...
Well, after looking at all the beautifully kept (and, in
some cases, modified) cars belonging to the other Bay Area
folks at our informal meet on Saturday, I was inspired to
think some more about this boost thang ...
If Ned Ritchie's Stage I kit consists of a stiffer
wastegate spring and a chip only to prevent fuel-supply
shutdown, it seems like a cheaper way to go would
be get just the stiffer spring, and recalibrate the boost
sensor electronics to increase the shut-down threshold. I'm
absolutely sure I'm missing something, because greater minds
than mine have messed with this problem at length (even if one
assumes that Ned's just a profiteer :-))
Looking at the Bentley quite carefully yesterday, I couldn't
figure out how the engine management computer senses manifold
pressure (no entry for "boost sensor", for one). In the wiring
diagram, the boost gauge has a wire going to the engine
management computer, but that's about it. So ... anyone care
to enlighten me?