Hi Paul

Just an update on our turbo compound project. Our first stage was to get the
supercharger working properly. I have given up on the roots blower (even
though we achieved an 8 second 1/4 mile pass), as the rotary just does not
like the pulsing, and load of the roots blower. I have purchased a PSI screw
blower (picture attached) to give me nice clean air with very low load on
the engine.

The Power Turbine has been stripped, and we are working out how to mount it
in roller bearings - rather than the oil fed plain bearings. The trust
washer end has no sealing for the oil, because in the original engine it
mounted on the accessory case and oil drained back into it. I will be
discarding the air cooling system, and vibration dampners - as we only run
the engine for very short bursts. The Power Turbine will be belt driven off
the supercharger belt, hopefully adding a valuable amount of horsepower back
into the engine. The secondary benefit is noise reduction - as out straight
through pipes are getting us undue attention with officials.

I seem to remember a mob in the US manufacturing billet front cases, with
larger oil pumps. Can you give me any details on this, or a link?

Regards Paul

Paul Carey LAME MC
Aero Group Pty Ltd
P.O.Box 119, Maylands WA 6931
Ph (08) 9371 5205  Fax: (08) 9371 9644  Mob: 0418 959 892
www.aeromanagement.com.au

Thanks for the update.
That was a Power Sport dry sump system. I am not sure they still make
them but the new owner is on here and he may fill you in.

Paul Lamar

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