ShAnNo_RB5

Was speaking to a motorsport buddy of mine at work today about de-cats and emissions etc. and he suggested that by removing the Crankcase Breather in to the air induction this may: -

a) reduce the emission levels as all the crap from the first det would not be dragged back through the chamber again for re-ignition.

b) reduce the temperature of the air induced for ingnition through the turbo (as it would be less the exhaust temperature) - thus more power.

Now I'm no boffin (I just plug the keys in and go!) but anyone got any comments on the idea?

NINJA

spec r should be developing a kit for my car my00 soon if u are interested let me know and i will speak to them.and yes it is a good idea

ShAnNo_RB5

Sweeeeetttttt!

Nice one Ninja - keep us up-to-date M8'ie with any advances - by the way (the answer we're all dying to know), any estimates on power gains?

Cheers,

Shanno

Moles Dad

Not necessarily a power gain, its more about not filling the ic and pipework with oil residue

Over time this will 'reduce' power

NINJA

if anyone else is interested let me know this wld help to determine interest

NutterKam

defo interested since I've always wanted to know which of the breather pipes I can redirect elsewhere because I'm trying to get rid of that plastic resonator box just after the MAF. Does anyone know if I can just run the breather pipes to an oil catch tank and one of those little breather air filters??

Devil's Refugee

Interested here too

caz1562

Is this below the expansion water tank on the left hand side of the engine as you look into the engine bay ?? If it is then I have an oil leak of some sort. Was thinking ot was the rocker cover gasket but if this is the oil collector tank then I need a new gasket for this. Anyone else had this prob. Will post pic l8r.

David_Wallis

I was going to make my own oil catch can... Anybody know how the baffles should be laid out??

David

NutterKam

not too clear about your "oil collector tank" since there isn't one. You're probably experiencing the rocker cover leak. This is simple to fix but bit fiddly. Will cost you about 25 - 30 quid to do yourself + couple of hours.

NutterKam

David, I think rally designs sell one for about 40 quid. Have no idea about the baffle layout if you're making your own tho....

caz1562

There's a small black rectangular thing sits on top of each rocker cover. Its this that leaking by the looks of things.




Whats this called.

NutterKam

that's just the part of the rocker cover of which the breather pipe comes out. Should be able to get gaskets for them. Mine are bit different if memory serves.

ShAnNo_RB5

Okay Guys,

I may be a bit of a thickie here, but I was wondering why Subaru designed the engine to let the crankcase breather feed in to the air induction in the first place?

Especially if it can (over time) leave an oily residue over the ic and pipework and reduce power???

Yours, quite puzzled by that piece of mechanical excitement sat outside on 4 wheels...

Shanno

Andy.F

It is a legal emission control requirement, the breathers do not spread oil (or not much) on standard boost engines.

Andy

Moles Dad

Subaru designed it like that due to emission laws

Helps planet, but fills ic and pipes with oil mist

The answer (maybe) is to feed all breathers into a catch tank...doesnt help planet, but does help ic

Any help ?

barge

most cars oil breathers go in to the induction system.

my escort has an old beer can as a catch tank

Moles Dad

Subaru designed it like that due to emission laws

Helps planet, but fills ic and pipes with oil mist

The answer (maybe) is to feed all breathers into a catch tank...doesnt help planet, but does help ic

Any help ?

ShAnNo_RB5

Thanx Moley...

Bloody Tree Huggers eh? If there not trying to stop us building ripspeed dual carriage ways (A34) they're making us strap beer cans to our motors...

Hanging's to good for 'em I say - splitters!!!

Moles Dad

WTF...double post, minutes apart!!!

LOL...I like trees, but I LOVE my scoob

I might have to get a satellite phone line, least I wouldnt have to keep on 'dialling up' everytime a tractor goes up the lane