[wilsonlaidlaw]

I have found my official Porsche GMBH workshop manual for the original 1977 911S and it looks on its circuit diagram (helpfully in black and white), as if it is the same as Timmy posted above, so requiring a five pole relay for the fuel pump. I have found what I think is a 5 pole SS relay from a competition parts seller in the UK at the Brands Hatch Circuit. However, it is only 17A and for starting overload current flow, I would have preferred 25A. I am waiting for confirmation that it is a non-latching changeover relay and not just a 5 pole with one pole not connected. Strangely if I wanted a latching SS 25A 12V relay, they are easy to find.

Wilson