[Chuck Moreland]

Nice pictures!

I don't recommend the AN-12 stuff. The hose is adequately sized, however the ID of the fittings is not. AN-12 fittings are typically 14.5mm ID, significantly smaller than the factory stuff. Porsche stuff is at least 17mm and most of the original kit was 19mm ID.

Since flow capacity of a tube increases with the square of the radius, those few millimeters make a big difference. 17.5mm flows about 50% more than 14.5mm for a given pressure.

That said, lots of people use AN-12 stuff and their motors haven't melted down. However their scavenge pumps are working extra hard and consuming extra HP to push oil through the restrictive lines.

For anyone creating an oil system from scratch or adding new components, using the larger factory stuff seems like a no-brainer. Ripping out existing AN-12 stuff to upgrade is a judgement call.