Yesterday, I finally had a dry day to install my auxiliary oil cooler from the Bus Boys.  This was a very solid unit, and cost a little over $100 including mechanical thermostat, sandwich plate adapter, and lines/fittings.  I bought some Rabbit radiator mounts (thanks vw mags) to mount the cooler on. as well as some 90 degree fittings.  I used a Hayden, Inc.  transmission oil cooler fan in addition to this that i found in a junkyard for free (this fan really puts out the air!)

It took me about 4 hours to do, for i did not have much room to work.......The time consuming part was finding a good mounting place and actually mounting.  I mounted above the transmission just behind where the engine tin stops.  I wired the fan so that it turns on when the key is on, and off when not..........I was going to do a toggle switch, but knew I would forget one day to turn it off, so came up with this instead.  The oil cooler is large, about 12"X10" and 3 " thick.....made of steel, so it is solid.

here are the stats.  Before the cooler, if i went 70-75 mph in my part of the country (humid, and 90+ degrees out side) for any length of time, my oil would hit 110C and probably hit 115C.so I had to go more like 60mph.   My oil pressure would be more or less equal to my rpms(3800 rpm...38psi) and my heads would run between 300-350f.

Now, And i drove ti hard yesterday, my oil temp is around 90-95C, heads 275-325, and oil is up about 5-10 lbs...........is this awesome or what?  Definitely one of the best mechanical things I have done to my van.

Adam P                              
81  Westy "The Brick "
70 Single Cab "Whitey" 
74 Beetle "Ol Yeller"
73 Transporter (STILL at paint shop)
1988 Vanagon Wolfsburg 
75 Campmobile "for sale'
Used Vanagon Parts for sale (mostly aircooled)