78 280zcar Posted October 4, 2005 Share #1 Posted October 4, 2005 I know how anal these cars are about air leaks and such, I was just wondering if I put a breather filter on the valve cover outlet would it make the car run bad or will the idle stay the same. I was thinking it would be like taking off the oil cap while the car is running. Thanks Link to comment https://www.classiczcars.com/topic/17481-breather-filter-on-valve-cover/ Share on other sites More sharing options...
beandip Posted October 4, 2005 Share #2 Posted October 4, 2005 No it wont have and effect on the idle on a 240 or 260 but on the 280s it will . The side effect of a little filter on the valve cover is you will have fumes in the cabin . If this on a carbed Z with the stock air cleaner there is no advantage in not connecting the hose to the the air filter like was done originonally . GAry Link to comment https://www.classiczcars.com/topic/17481-breather-filter-on-valve-cover/#findComment-140331 Share on other sites More sharing options...
78 280zcar Posted October 4, 2005 Author Share #3 Posted October 4, 2005 It is a 280z, I put a different throttle body on it and dont know what to do about the valve cover outlet now. It went to the throttle body. Thanks for the reply. Link to comment https://www.classiczcars.com/topic/17481-breather-filter-on-valve-cover/#findComment-140336 Share on other sites More sharing options...
PrOxLaMuS© Posted October 5, 2005 Share #4 Posted October 5, 2005 run a filter.. you will be fine =) Link to comment https://www.classiczcars.com/topic/17481-breather-filter-on-valve-cover/#findComment-140517 Share on other sites More sharing options...
Murph Posted October 5, 2005 Share #5 Posted October 5, 2005 ...or just plumb the breather hose into the intake anywhere ahead of the throttle body. Link to comment https://www.classiczcars.com/topic/17481-breather-filter-on-valve-cover/#findComment-140519 Share on other sites More sharing options...
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