[QUOTE="Bob Davi, post: 3519217, member: 17932".............Is this to isolate the possible problem?? Not trying to hijack thread, but what's the general opinion on running the oil cooler??
Thanks, Bob[/QUOTE]
Interesting question, a little off-topic, but I can shed some insight on the oil cooler in the 1986-7 turbo cars as I had friends and contacts at Buick in engineering, development and testing especially locally at the GM Desert Proving Ground in Mesa, AZ had many GN's undergoing testing and evaluation there.
When the intercooler was made part of the engine package advertised power went to 240/245 HP, this added a lot to the under hood temps. Emissions required much higher engine temps to be within Federal compliance and since the factory had to warranty these cars, the engineers were concerned with oil temp, hence the engine oil cooler was a rather simple addition.
Fast forward about 30 years, and we have much more HP with mods, but we also made many other changes to lower the engine operation temperature to even less than a factory GN in lots of cases.
For many years I have been concerned with engine and trans oil temp so early on gauges were installed to provide data.
With the addition of much better radiators, better airflow to and through the engine compartment, deep oil pans and other helping mods, it is sometimes hard to get oil up to temp when racing in cool weather.
On a few e-85 conversions, I have removed the oil cooler to allow more heat into the oil as the alcohol runs a lot cooler than gas..
Since all cars are different as well the way the car is used and driven, the conditions and circumstances can and will be different, so what will work for one owner to remove the oil cooler is NOT always applicable for everyone?