Hi Paul,

I was sitting on the thinking seat and had a thought. How do you intend to
seal the shaft between the turbo shaft compressor end and the friction drive?
If it exits the intake piping it becomes exposed to unfiltered air and at the
RPM needed a seal would fail quickly. The only way I see is to have the whole
thing enclosed in the intake air with the friction drive bolted to the
housing. Then the problem; the housing has to be fairly short because of
packaging. This leaves a short 90 degree turn for the air into the turbo
inducer. This short turn is prone to creating turbulence which would affect
the efficiency going into the inducer. What are your thoughts on this?

Dale Davies


You could be correct. Something we may have to deal with when the time
comes.

The shaft does not need a lot of clearance so the leak would be small.
A bit of loss here would not have a serious effect as everything is
at atmospheric pressure in this area.

Paul Lamar