IND presents Motorsport 24’s S65 racing thermostat housing!

[Nate@IND]

The S65’s original thermostat housing exposes cool water from the radiator to hot water that flows from the expansion tank. By mixing cold and hot water, BMW’s original design compromises the radiator’s cooling efficiency in favor of a more maintenance-free cooling system.

Motorsport24 eliminates the mixing of hot and cold engine coolant to create an overall more efficient cooling system. By allowing the cold water to flow to the engine unimpeded and without coming into contact with warm water from the expansion tank, Motorsport 24 improves the original BMW cooling system design and delivers cooler water to the S65 engine. The Motorsport 24 thermostat housing is a great addition to any car used in a sports or racing environment.

Please contact an IND representative for more information.

[THE TECH]

Do you have a pic of the stock one? Also, with the passages being right next each other and the part being aluminum, isn't the unit just going to heat soak and negate any cooling effects?

[IND-Distribution]

While the aluminum might reach a uniform temperature, the hot and cold coolant are no longer mixing inside the housing.