Quote:
Originally Posted by andrey_gta
Hey BudVlad. This is what I think needs to be addressed.
The n53 manifold has an second large opening near the TB if I recall correctly. This is my n52 manifolds don't work for n53. This will have to be addressed, I don't know how for n53... Maybe a custom cut and tube connection to n54 manifold.
Next looking at the n54 manifold it does not seem to have connections for the oil return / breather pipes that n52 has (older n52 have a separate oil collector). So to address this I think we need custom tubes simmilar to using older 330i manifolds vs the newer 3stage to close the system.
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Opening on N53 manifold is for EGR valve. I eliminated EGR when I installed headers but the coolant hose will have to be reconnected. I’m not sure if PCV has to be connected to vacuum.
Fuel tank ventilation on N54 is connected to TB.
