Use a Mazda RX7 oil cooler.
It has plenty of capacity and a built in 147 degree thermostat.
You can usually find them on E bay because lots of racers use them.
I'd suggest that you get back in there and put the stock cooler back in
there ................. you're just asking for trouble by removing it.

Stan Wilder

----- Original Message -----
From: "Skip Emmert-Keaton" <skip@SKIPEMMERT.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, April 21, 2004 5:41 PM
Subject: Oil cooler

> I'm adding an oil cooler to my 1980 air-cooled Westy and want to add a
> thermostat upstream of the cooler.  I've removed the stock cooler and run
> lines from an adapter there.  Does anyone know whether the top or bottom
> hole is oil out?
>
> Thanks for the help,
> Skip