Funny how we think alike. I asked Gary (Engine guy) about running the light weight oils as I always used 20/50. He said that with a normal
oil pump (wet sump) system it would be correct. Except with a Dry Sump the flow is so much more ( he called it velocity) that the thinner
oil is more appropriate. Anyway motor pulled the dyno runs on 10/30 NON
synthetic with the last one stabilizing at 7800 RPM (I was "soiling" my pants) to see how the
oil temp would react and then letting it come back down after around 2 minutes (felt like an eternity). He told me that since the oil temp hardly moved at peak HP then the motor was fine. He said Mobil 1 would work fine as they were using it in a lot of the race motors and had good luck with it. He also told me that sythetics were a problem for a long time but that the newer stuff was OK.
Anyway, thanks again for the input,
Regards,