Matt Barrow wrote:
: (bondo-buggy as he called it), it had *manual* wastegates.

: ICK!!!!

I *like* simple. Less crap to break, and *YOU* get to choose if you want to
use the turbo or not. If you run out of MP in a climb, just crank in a bit more on
throttle #2.

: Yup...a popoff valve will release at about 30.0-31.5" MP. Nothing to control
: or worry about...just fly.
: No chance to overboost.

Exactly... likely done like the flagrantly stupid design like Piper used. The
wastgate control "controlled" the inlet to the throttle at some arbitrary pressure.
No matter what throttle setting you use, you guarantee the maximum possible inlet
air temperature, turbo temperature, and power loss due to increased backpressure on
the engine. The *correct* way would be to leave the turbo off until the throttle
plate is wide open. THEN, bring up the boost if you want more MP. It could be done
with linkages with little failure liability.

If the aftermarkets work this way, I apologize, otherwise, the "flagrantly
stupid design" comment still holds IMO.

-Cory


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************************************************** ***********************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
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