Definatley externally regulated (has field and neutral pins on it).

Fixed the problem though!

What got me was that I checked everying and it showed up ok - so whats causing the problem? Magic lol?

What happend was I rechecked the reg socket pins on the harness and the feild/neutral/earth/active cables had continuity and were properly connected. The light pin had 12 volts (ready to be grounded by the reg when no charge).

However, the ignition pin had no power! I checked the fusebox and there it was - blown IGN fuse.

What happened yesterday was that after checking the socket and working out EVERY pin was as it should be , I assumed that the regulator must be broken. As a last resort I tried to manually trigger the power transistor in the reg (to see if it failed) but as it turns out I dont know my TIP107 transistor pin outs and I blew it up (no loss, the reg was rooted anyway).

This also blew the ignition fuse!

Anyway, the car runs, the battery charges and on idle I get 14v and 14.2v with the high beams.

And after the test drive the datto is scary fast, might do a write up sometime.