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E30 M20 2.7 turbo breather system
Posted: Fri Oct 17, 2014 1:31 pm
by Rallyprep_UK
What have others done with regards to the breather system on the M20 turbo setups ?
I have an M20 Turbo E30 here and I am pretty certain the breather system is incorrect.
Thanks in advance
Will
Re: E30 M20 2.7 turbo breather system
Posted: Fri Oct 17, 2014 7:13 pm
by b12rlw
Rocker cover breather on mine is fed to a catch can with a drain valve that feeds back into the position where the oil level switch used to be.
Rocker cover has been tapped to take a barb hose fitting.
I do have a custom intake manifold though.
Re: E30 M20 2.7 turbo breather system
Posted: Sat Oct 18, 2014 10:30 pm
by ross2009
the inlet on the side of the throttle body needs blocking off other wise it will take boost and pressurise the crank case, rocker cover can just have a little filter on it or lead to a catch tank thats it