SNIP:
...........I turbo normalize plus (make moderate gains in power at S/L
through use
of the turbo then 'normalize' that amount of power for benefit at
altitude).  I achieve that by use of the throttle.

I have a fixed waste 'gate' (exhaust bypass really) because it was the
easiest way for me to get a big wastegate.  I believe an aircraft style
wastegate is an excellent choice, but a LARGE automotive style can work
equally well and is more available and less expensive.

David Leonard

Turbo Rotary RV-6 N4VY
N4VY.RotaryRoster.net <http://N4VY.RotaryRoster.net>
www.RotaryRoster.net <http://www.RotaryRoster.net>
leonardiniraq.blogspot.com <http://leonardiniraq.blogspot.com>

David,
Again I apologize for my ignorance, but can you explain exactly what you
mean by "fixed wastegate"?  If I understand the term "fixed
wastegate",  its basically a wastegate that is always open a little to
allow a constant leak?  That would also allow a constant percentage of
the exhaust to flow into the turbine side of the turbo.  If that is
correct, Why use a "wastegate" at all?  Why not just have a small
port before the turbine that leaks exhaust around the turbo and back
into the exhaust pipe?  I guess a set up like that would require some
sort of trial and error getting the % of exhaust bypass correct.  Maybe
some type of restrictor in the bypass port?   But you would have much
control of the turbo that way!!   Is that why you use a "fixed
wastegate"?  So you can adjust the amount of bypass?  How does that
differ from the normal wastegate operation?  I thought a wastegate
cycled from open to closed based on its duty cycle.  That's different
from the fixed wastegate isn't it??  Damn I'm confused!!!!!   Also what
do you mean by, "then 'normalize' that amount of power for benefit at
altitude).  I achieve that by use of the throttle."  I didn't follow
that part at all.
Don

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