Al, here's one link. This isn't the exact unit we bought, but its similar. Some searching on VW parts and performance sites would bring up the same or similar things.

http://www.lefthanderchassis.com/140.html    [bottom right side.. its a white pvc pipe looking thing]
I noticed this one is only 230 CFM..

Hope that helps.

Jarrett

Thanks, Jarret. These are basically bilge blowers, and as with others I have found, the 4” diameter versions put out about 240 CFM.  Note really applicable.  I did some preliminary tests on the water spray idea and found that about a 5-10 second spray with a garden sprayer would drop the oil temp by about 5 F at 210F and taxi power.  This may be the best bet, if needed.

Al