Cheers Nassa.
Nassa said:
... I don't think this mode will be beneficial to z22se with oil control rings problem ...
Well it has been positively beneficial on my red car. When I got it with 193K km it drank about 1 L/1000 km, now after the mod and at 250k km it drinks about 0.4 L/1000 km.
Moreover, the car revs happier and pulls harder (crankcase vacuum also improves ring sealing), and the oil remains cleaner.
In fact I'm now doing the same mod on my silver car, even though at only 55K km it barely drinks any oil at all (oil control rings not yet stuck).
Nassa said:
... the rocker cover is designed perfectly to separate oil from blow-by gasses and to send them back into intake to burn them again because blow-by is a rich gas, all you need is clean the rocker cover thoroughly ...
Unfortunately the L61/Z22SE cam cover is not easily serviceable, for the baffling is riveted and we risk destroying it if taken apart. Another engineering feat. :banghead:
Nassa said:
... If you want more vacuum just enlarge the orifice itself from 1.6mm to I think the hole behind it is 5mm or you can make it rectangular to match the hole on the head ...
IMHO having to pull apart the whole intake manifold and associated items just to service a frigging hole is a plainly ridiculous proposition. Better to add an external and easily serviceable additional post-throttle PCV line.
Nassa said:
... but this will come with higher oil consumption because the blow-by gasses will move faster through the cover so less time to separate them from oil.
I happen to disagree. An extra or "by-pass" post-throttle PCV line lowers oil consumption empirically. What I believe really happens is that what is in essence a larger metered orifice increases flow volume (good for crankcase evacuation, specially on high mileage engines), while decreasing flow velocity (good for reducing oil consumption, as you've explained).
Nassa said:
^ That's a nice gadget, displays very interesting info. Is it some kind of OBD2 scanner, Nassa?
