I found a video on YouTube that was called "PCV air pump scavenging" (or so). Then following the info below , I came to
this thread on nasioc
There are part numbers and know-how. They used a GM pump , part number 24505066.
Another interesting link is
here
They mentioned that there was no difference in hp on the dyno with the pump ON. But the Honda S2000 has a system like that , so it should be working. May be you need to make some modifications to the piston rings (lower tension) or so.