Scott Posted August 25, 2011 Share Posted August 25, 2011 Doing a bit of digging around I have found a lot of opinions on different breather setups. I was wondering what the modern opinions are and some ingsight so that I can decide what I fancy. I was thinking of just venting to the rear of the car with a couple of mini k&n filters, not sure if this was worth the hassle over a catch tank though? Thanks. Quote Link to comment Share on other sites More sharing options...
johnny g Posted August 25, 2011 Share Posted August 25, 2011 Just vent to atmosphere bud, as you say. Quote Link to comment Share on other sites More sharing options...
JamieP Posted August 25, 2011 Share Posted August 25, 2011 Vent mine just behind the diff with a couple of -12 pipes. Quote Link to comment Share on other sites More sharing options...
Scott Posted August 25, 2011 Author Share Posted August 25, 2011 Vent mine just behind the diff with a couple of -12 pipes. Do yo hve filters or non-return valves Jamie, or is there no issue with crap getting sucked up? I was thinking that the filters would get rather grimey. Quote Link to comment Share on other sites More sharing options...
heckler Posted August 25, 2011 Share Posted August 25, 2011 mines vented to atmosphere too... Quote Link to comment Share on other sites More sharing options...
JamieP Posted August 25, 2011 Share Posted August 25, 2011 Open, pipes are to long for anything to get back up them. Quote Link to comment Share on other sites More sharing options...
Scott Posted August 25, 2011 Author Share Posted August 25, 2011 What is the benefit of running lines to the rear? Would mini filters on the cam covers themselves not be enough? Or is it to stop moulten oil from spewing all over the engine bay (and wheels/tyres I guess) should the worst happen? Quote Link to comment Share on other sites More sharing options...
JamieP Posted August 25, 2011 Share Posted August 25, 2011 Or is it to stop moulten oil from spewing all over the engine bay (and wheels/tyres I guess) should the worst happen? Yup. Quote Link to comment Share on other sites More sharing options...
Scott Posted August 25, 2011 Author Share Posted August 25, 2011 Great stuff, thanks. Quote Link to comment Share on other sites More sharing options...
supradibbs Posted August 25, 2011 Share Posted August 25, 2011 I had 12an running to a catch tank next supra i build will do what Jamie and others have done Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted August 25, 2011 Share Posted August 25, 2011 Im going to run mine same as jamie... well Lee will run mine like that Quote Link to comment Share on other sites More sharing options...
Scott Posted August 25, 2011 Author Share Posted August 25, 2011 Im going to run mine same as jamie... well Lee will run mine like that I'm surprised you have space with all that clutter in there Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted August 25, 2011 Share Posted August 25, 2011 I'm surprised you have space with all that clutter in there dont you start . Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 25, 2011 Share Posted August 25, 2011 -12 lines from the cam covers to a rat bait box with holes drilled in the lid. Cheap, light, and works fine. Probably not high tech or brightly coloured enough for many folk, but saves dosh for things to make the car faster or better in more practical ways Before I went upmarket to a rat bait box I used an empty 4 litre oil container Blank off the PCV stuff. Quote Link to comment Share on other sites More sharing options...
TheTurtleshead Posted August 25, 2011 Share Posted August 25, 2011 -10 lines to a nice alloy catch tank with a vented lid, baffled to allow oil and air to separate, air to vent and oil to retun to the sump via a -4 line. That would be the ultimate set up imo Quote Link to comment Share on other sites More sharing options...
Scott Posted August 25, 2011 Author Share Posted August 25, 2011 Cheers Chris, at least it means it's a simple enough mod. Excuse my ignorance but what is the PCV stuff I've to block? Quote Link to comment Share on other sites More sharing options...
JamieP Posted August 25, 2011 Share Posted August 25, 2011 Cheers Chris, at least it means it's a simple enough mod. Excuse my ignorance but what is the PCV stuff I've to block? PCV= Positive crankcase ventilation valve, its located in the intake side cam cover and is attached by a hose to the plenum, i kept mine in place till i was about 900bhp. Quote Link to comment Share on other sites More sharing options...
Scott Posted August 25, 2011 Author Share Posted August 25, 2011 PCV= Positive crankcase ventilation valve, its located in the right hand cam cover and is attached by a hose to the plenum. Ahh, yeah I knew about the cam cover one.. do I just pull that out and weld on the -12 fitting? Didn't realise it went to the manifold too, will get that blocked off. Cheers Quote Link to comment Share on other sites More sharing options...
JamieP Posted August 25, 2011 Share Posted August 25, 2011 For your build id leave it alone tbh, i only removed mine when i went built engine and 76mm turbo, just vent the exhaust side. Quote Link to comment Share on other sites More sharing options...
Scott Posted August 25, 2011 Author Share Posted August 25, 2011 For your build id leave it alone tbh, i only removed mine when i went built engine and 76mm turbo, just vent the exhaust side. So just leave it going into the manifold as per stock? Cheers Quote Link to comment Share on other sites More sharing options...
Wez Posted August 25, 2011 Share Posted August 25, 2011 Mine is stock on inlet side, ie cam cover into inlet, on the exhaust side I have a -12 going to a Whifbitz tank Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted August 25, 2011 Share Posted August 25, 2011 ive got some garden hose pipe that comes out at the back of the car Quote Link to comment Share on other sites More sharing options...
dandan Posted August 26, 2011 Share Posted August 26, 2011 Scott, If you leave the plenum side connected you might consider putting a filter on the end of the hose conencted to the exhaust cam cover as it will suck air in when the throttle is shut. Quote Link to comment Share on other sites More sharing options...
Scott Posted August 26, 2011 Author Share Posted August 26, 2011 Scott, If you leave the plenum side connected you might consider putting a filter on the end of the hose conencted to the exhaust cam cover as it will suck air in when the throttle is shut. Good spot Dan, cheers for that. Would there be any harm in running the exhaust breather and just blocking off the intake side? Quote Link to comment Share on other sites More sharing options...
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