ScottMellor

When plumbing an auxiliary oil cooler on the 993tt, should the oil go through the primary oil cooler first or the secondary oil cooler?

Or to put it another way:
If you are looking at the primary oil cooler from the passenger side, there are two outlets. Lets call the rear-most one number 1 and the other number 2. Which one should be connected to the low (inlet) side of the auxiliary oil cooler?

It may be 6 of 1 or half a dozen of the other, but I wonder if the brain trust has any input.

The reason I ask is I have two cars sitting side by side that are the opposite of each other in this respect.

IamSMC

http://p-car.com/diy/oilcooler/

http://www.cuberootconsulting.com/~jchan/POWERK4.TIF

ScottMellor

Thanks! The P-car website was down earlier.
The Andial car was plumbed backwards!

Geoffrey

I would plumb to the auxilary cooler first and then to the primary cooler which will reduce the frequency of the cooling fan comming on.

ScottMellor

For a cargraphics/ruf type of cooler on a street car my tech is recommending going from the primary to the secondary so as to lower the temperature of the air blowing across the ac condensor.

ca993twin

AC? Our cars hav AC? Who woulda thunk it?

sonny1

I got three oil coolers on the front all of them I run them in a parallel circuit.