Originally Posted by MC
It's normal for the 8v engines to spit oil out the crank case vent when you thrash them. Do you have a pipe direct from the block to your tank or is it going through a black seperator box? If it is a box have you got both pipes taken care of? CP made a device that allowed the pressure to vent and the oil to drain back into the block which was very effective. Consisted of a pipe from the block running up into a larger bore pipe of about 50-60mm internal diameter and about 200-300mm long with a normal pipe of the top to a breather. Keep the large bore pipe vertical and the pressure pushes through and the oild drains back down.
I used to have to clean my engine bay after every thrash!