So much thoughtful commentary and so comforting to see the fierce yowie profile pic again!
Cheers very much. Going from 16 or whatever pages of profile on Ozfoz (over 4 years) to not even one page of summarised content here was a bit sobering. Clearly my mods-to-chatter ratio was a bit lean.
Thanks for letting a dirty Forester owner into the gentlemen's forum.
Are you using BtSSM yet?
Its great to have full ssm logging via rear defrost button, and LV, whenever you like!
I've just looked into it and downloaded it to phone now (the Parrot head unit is a pr!ck about connecting to the internet). Plenty to learn by the look of it.
Have you tried facelift Mazda rx8 Tokyo Roki oil filters?
I'm keen to get one and compare with the FB25 filter. They look very similar.
The KAP catch can has a barely sealed plate between left & right sides, from your pic it looks like you might be filtering the heads through this plate (diametrically opposed ports).
Obviously the best way to confirm if your catch can systems are working properly is to put a vacuum/boost gauge on an oil cap modified with a fitting for vacuum hose, or into tees on the inlet returns. (As per FlatIrons again https://www.flatironstuning.com/blog/an ... aru-engine)
Well spotted. Yeah I figured (rightly or wrongly) that sending dirty air around the perimeter of the catch can (past that narrow gap between the separator and the internal wall) might throw a bit of fluid out of aerosol state onto the wall before it comes up through the steel wool and through the "clean" port back to the intake pipe. The Subaru-owner's mass spectrometer perhaps.
That Flatirons video on crank case pressure is a gem - dealing with years of speculation and tall tales in one 55 min video.
I'm a spare oil cap away from trying the crank vacuum test (since I have a redundant-but-functional Turbosmart boost gauge with stuffed LEDs).
Funny you should mention crank vacuum. This weekend I dismantled and checked the crank catch can (Mishimoto) to see why I hadn't collected much lately. Turned out to be the vinyl hoses weren't sealing well on the alloy barbed fittings, despite the use of hose clamps. Rather than switch to rubber hoses or brass barbed fittings (which are a pr!ck at removal time) I used some electrical tape adhesive ethylene race shimming on the alloy barbed fittings to make a snug fit on the vinyl hose.
As it turned out, the clean-return hose on the valve cover (Kapp) catch can also had a loose hose clamp at the intake pipe end. Oops. Nothing like a trickle of unmetered air for to keep target mixtures under load.
I have one of those Perrin inlets to install, I prefer it over the AVO inlet I also have, because it retains the crank case breather return next to the compressor inlet, which according to FlatIrons, provides maximum vaccum on that return port.
The Perrin one was "mechanic's choice" when I first got the car and the OEM pipe was revealed to be chewed at the turbo end. Yeah that's why I picked the Perrin pipe (ahem)