I went through a significant learning curve on lubrication on the build that Vintage did for me using Blykins 445CI SBF. Short story is that for every 1 PSI above the engines consumption (approx 45PSI on my engine) you will get an additional 1 deg of
oil temp. So if you only consume 45PSI but are running at 70 PSI you are seeing 25 deg of add'l
oil temp. Too much
oil pressure is not a good thing, according to Roy Johnson/Johnson Performance who designed oil systems for Nascar, most guys running oil coolers wouldn't even need them if everything else was correct (like not running too much oil pressure). I am still messing around with the dry sump we put in to tweek everything but its tough since the weather is not great. I have noticed that the oil temp has gone down since I lowered the pressure though. I'm sure if you are running on the track the cooler is necessary but for a street car I'm not so sure.