jss

been doing some reading and its my understand that the vanes should be installed in this direction

picture showing driver side



reason I am confirming is due to many other post talking about the other direction to install...

to me picture is correct

993GT

that is correct, air flow: into centre of disc, exiting at outside

jerome951

Rob is correct. That's the proper direction of rotation.

Oddjob

+3. Vane direction can be seen in the cross drilling shown in Rob's avatar

jss

thanks guys