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rabbito
07-14-2016, 02:13 PM
anybody using one these engine breathers on N/A engine? any gain? let me know the detail please, thanks http://uploads.tapatalk-cdn.com/20160714/5055b84413e13198429eb27108ac0ec7.jpg

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Jason@SportsCar
07-14-2016, 03:19 PM
anybody using one these engine breathers on N/A engine? any gain? let me know the detail please, thanks http://uploads.tapatalk-cdn.com/20160714/5055b84413e13198429eb27108ac0ec7.jpg

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If you think that provides a power gain you have no idea what it is for.
CoryM
07-14-2016, 03:24 PM
The only reason to install a vent is if your PCV system cannot keep up with the crankcase pressure. Typically only happens on boosted engines, or sometimes if the motor is doing high-RPM track-days (or if the rings are badly worn). There are some vehicles where the PCV oils will clog up various parts of the engine, and I would consider modifying or removing the system, but the Yaris is not one of them.

I'd spend your money elsewhere unless I am missing something.

Cheers.
ern-diz
07-14-2016, 04:06 PM
If you think that provides a power gain you have no idea what it is for.

Pulling no punches lol.

Almost make a non-gear head like me afraid to ask questions. Almost :wink:
SirDigby
07-23-2016, 08:34 PM
i'm pretty sure these filters just leave your crankcase unpressurized. (?) I don't see an advantage except the crank vapors do not get vented to the intake system. I would think you'd want the crankcase to remain pressurized during high acceleration to reduce piston blow-by, and this is the reason I would not use one of these...