I guess any oil cooler that can handle 90 psi is suitable. just flush it out good.

I have one out of some mitsubishi, it works fine, i think it has a built in thermal regulator, so you could save some money there, I have an external regulator, since you don't want the oil too cold.

you might want a check valve too to keep the oil from draining back in to the sump.

My oilcooler is going here

In a sorta kinda thats not my car way

so your saying that it would work fine, oil wouldnt be too thick or thin for the cooler???

2 probs with that, the radiator is struggling as is, and then it wouldnt be external mount like the japanesse ones (would i be dis-owned by this site for doing that?)

How about a radiator with the trans cooler built in? There are some good options there that would meet your non-racing needs. The auto Pulsar N13 has an alloy rad with built-in trans cooler for example.

just what it says really, could i use an auto trans-cooler for cooling the engine oil effieciently?

or do any cars come with oil-coolers that i might find at a wrecker?

always looking for the cheap option.....