Quote:
Originally Posted by Jono2112
Quote:
Originally Posted by sq86
Quote:
Originally Posted by Blubaron79
What's a water cooled exhaust manifold?
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They run coolant through the exhaust manifold (which is built into the cylinder head) to help control the temperatures to prevent it from getting too hot when under extreme duress. Overall it reduces emissions by preventing the catalytic converter from running too hot by allowing it to operate at a more effective operating temperature. It also helps get the engine up to temp earlier. |
Does the cooled exhaust manifold give any advantages to the turbo? Perhaps reducing transfer of heat from the exhaust turbine to the compressor turbine? |
It may help lower exhaust temperatures more than they would without it before it gets to the turbo. It would only be beneficial at sustained higher operating temperatures such as driving on a track which I don't think many will do with their Z. This puts more pressure on the intercooler though, obviously, which means they have to beef that up. This helps to reduce weight and the overall size of the exhaust headers too which is an added benefit.
I bet we see this incorporated more across the board throughout future applications.