Originally Posted by CosKev3

As above,doesn't make much difference

When I had my T34 re-conned could only get hold of an oil cooled core,told by Danny that the water turns to steam as soon as it hits turbo anyway,because core is that hot and water supply to turbo is only small.

Supposed to help keep engine temps down not running cooling to turbo,only thing you need to do is let engine idle/cool down before switching off