external oil cooler
 

i have a 13b rx7 external oil cooler. not sure if there is any interest here but thought i would try. 50 bucks
http://i231.photobucket.com/albums/e.../oilcooler.jpg

what are the dimensions and fitting sizes?

The dimensions are large x big x huge and I'm not sure what the fitting size is.

I'm of no help sorry. I have that same oil cooler sitting in my garage, I could go measure it...

not sure what the size is or fitting size. its just a stock fc oil cooler.

Those are really nice since they have a thermostat built into them. I've got one I'm gonna use for my turbo project.

they bring a premium on ebay, the Porsche guys use them as an upgrade, can't remember on which models though.

This is what I am running on my car and am very happy with it. 20-30 min track sessions and the oil stays nice and cool.

Here's a web page that helped me when installing this cooler: Triple-R: FC3S Buildup - Chapter 3: Part 28