Oil return line
Turbo Mini Forums

Gday

I am about to get my mini gearbox build for turbo build i am doing. I recall some people drilling / taping a hole in the back of the case for the oil return / drain. I will be running gt17 of a fusion fab manifold, and already have an adapter for the oil drain that fits the fuel pump. However am i better off draining to gearbox instead or no difference.

thanks for any help

cheers Jason

If you are referring to the Mechanical fuel pump then that adapter drains back into the gearbox, no need to be drilling extra holes in the casing.

Own the day

Gday Yes its the mechanical fuel pump. just wondering if there is any advantage draining straight to gear box

That is where the drain for the turbo has always been.

Own the day

There’s no reason you couldn’t go into the gearbox casing (as high as possible). But the mechanical fuel pump is a good solution that already exists.

In the 13's at last!.. Just

Great thanks guys !

On a GT17 setup I have that didn't need bulkhead clearance, it can't use the fuel pump location and it uses an adapted speedo housing for the drain.

I plan on going into the gearbox on the new engine build, getting the GT15 into the fuel pump aperture was a nightmare - I had to make up a 'sump' to get it routed due to the angles (there's pictures of it in my 998 build thread).