Hi
On my daily 1303 I have an oil cooler was mounted at the front of the fame head, works great, a 7 inch thermo fan has been added, the fan is controlled by thermo switch I got from CIP, motor is a mild 1904 Type 1, I have no stock oil cooler in the shroud, it gets up around 105 c after many laps on track days in summer, but it never gets hot enough in traffic to bring the fan on.
Steve