71XS1B, crank shaft windage? Not from what I understand. When you first start the engine the cold oil flows very slowly, due to being thick. The place the sump filter teas out is right by where the oil pump draws oil in. It is also the weakest part of the filter screnn. If you rev the engine before the oil thins a bit and oil flow increases the draw from the oil pump tears the weak spot out of the oil filter.
You could use a sump extension six inches deep and this won't change.
In inxs's pic you will se an oil cooler up by the styeering neck. This cooler drops the oil temps by about 40-50 degrees F. I have one very simular on mine and did some temp testing. Before and after.
Adding the oil filter like his without cooling fins drops temps about 5 degrees F. the filter fins maybe another 5 to 10 degrees F.
They also add oil capacity.
If you do a lot of city stop and go or ride in hot weather The oil cooler is a good thing.
Leo
You could use a sump extension six inches deep and this won't change.
In inxs's pic you will se an oil cooler up by the styeering neck. This cooler drops the oil temps by about 40-50 degrees F. I have one very simular on mine and did some temp testing. Before and after.
Adding the oil filter like his without cooling fins drops temps about 5 degrees F. the filter fins maybe another 5 to 10 degrees F.
They also add oil capacity.
If you do a lot of city stop and go or ride in hot weather The oil cooler is a good thing.
Leo