Quote:
Originally Posted by A26B
If you change the vacuum source from the plenum to in front of the air filter housing, you will essentially & effectively kill the PCV system. You won't have a vacuum source anywhere in front of the throttle blades.
Regarding the cam cover filters.
Under normal driving conditions, the air flow is INTO the cam covers, NOT out of the cam covers. The purpose is to allow filtered air into the crankcase, through the cylinder heads so that there will be purge air flow for the PCV system to operate properly.
The filters inside of the cam covers are for high rpm conditions, when vacuum to the PCV is low and there is little to no purge air flow of filtered air into the cylinder head. The purpose of the filter is to prevent splash oil from under the cam covers from getting up & into the aluminum purge air pipes.
If you are really worried about the oil in the plenum, a catch can is the only way to deal with it, simply & efficiently.
|
You are correct sir about the filters. I stand corrected. what was I thinkin?