[Land-speed] Sorta off-sorta on-topic..

MEIERLE Mike Mike.Meierle at alcatel-lucent.com
Tue Nov 13 06:18:52 MST 2007


"  There is a point at which a compressor creates such back pressure in
the exhaust (reversion) that the pistons can't push the exhaust out past
and through the blades.  But maybe if we put a big flywheel on it ...."


There is a exhaust wastegate to limit the total amount of intake
pressurization. It lets excess exhaust gasses bypass the drive side of
the turbo. Keeps that backpressure thing from getting too bad.
Then there is the Blow Off Valve, you need that on the other side to
prevent the intake/throttlebody from being damaged when the throttle
blades close with 15 -30 PSI of air on the way, when shifting etc...

Mike Meierle
#847 F/P/MP
SCTA-BNI/Gear Grinders/Sidewinders/ECTA
ECTA Record Holder


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