[Ross Nicol]

I hear what your saying Jac Mac.Yes I do know how cold it gets in your neck of the woods, I remember during school holidays sitting in the kitchen with our feet in the coal range oven listening to the holiday programme on the radio. We also put milk outside in a container at night and after a good solid frost it would be cold enough to make milkshakes.
Now, no there is nothing wrong with my setup, I have never had a problem when the oil is hot but on this occasion I had a cheap Chinese filter, because it was to be removed after a short time.The dry sump pump with that quick burst of speed (read bit of an over rev, alloy flywheel too). My son did it once when he was demonstrating to a young friend when I wasn't around. Left me to clean it up though. I generally stick to Purolator or Ryco filters and they seem to be good.I always warm the oil before giving it a rev though.Oil is 20w-50 castrol R (formerly GP50) not grapefruit oops I mean synthetic. Been warned off that stuff by V8 supercar engine builder. All the fittings are -12 Jac Mac. Oh yes I understand the oil enters the filter through those outer holes and exits through the centre. I was trying to describe the filter inlet holes in my post but it didn't read very well. I believe when the oil is cold these holes provide quite a restriction but when its up at race temp 100°c (see that I remembered how to do the degree) never causes a problem. I also have 11 litres of oil in the system, I will never run low again. Promise!
Ross