Originally Posted by Turbosystems

a simple fix to the ggr and spec r systems is to convert your catch tank into a separator. This is quite simple you need to modify the catch tank by fitting a -10 fitting and pipe to the lower most point of the tank ie convert the drain tap /drain blank.throw the tap /blank in the bin.

Pipe this new -10 fitting back to the convenient crankcase fitting on the block by the block coolant drain plug. you will need to heat wrap the pipe and also make sure it has constant fall and is routed clear of the exhaust and manifold
If you are already using this point on the block you will need to T into it making sure the priority flow is from the catch tank.
IF using a ggr catch tank you will need to add a second -10 min fitting on the upper most corner of the tank to atmosphere.
The spec r catch tank does not require this as it has huge atmospheric flow just pore crankcase flow.
By carrying out the above modification you have also increased the crankcase flow.
I hope the above is easy to understand
you have now converted your breather system to the Turbo systems design of the 80's era