Hi,
the RS Turbo S2 from my friend Is overheating dramatically. Normal driving through the village is already a problem.
Attempts to solve the problem:
-) original Ford water pump
-) radiator from airtec
-) coolant circuit vented forever
-) Spal fans
-) switches to start the fans very soon
-) driving without thermostat
-) head gasket check and fine
-) head was sent to a company, 100% okay

Car runs hot original and with chip. Performance of the engine is great. Lambda values perfect.
We honestly donīt know how to go ahead.
Are some engines known to have troubles with coolant circulation? Installation of an electrical water pump?
Opening up of the head gasket holes to the cylinder head?