Big Supes Posted October 25, 2021 Share Posted October 25, 2021 (edited) In the process of doing an EGR delete so thought it would be a good time to look into a catch can while I'm helping the engine breathe. Any recommendations for tidy/easy fitment? Edited October 25, 2021 by Big Supes (see edit history) Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted October 25, 2021 Share Posted October 25, 2021 -10 AN fittings welded to the cam covers and the Real Street catch can. https://www.realstreetperformance.com/real-street-performance-10-billet-baffled-catch-can-black-with-breather-filter.html Quote Link to comment Share on other sites More sharing options...
Burna Posted October 25, 2021 Share Posted October 25, 2021 On 10/25/2021 at 10:21 AM, Big Supes said: In the process of doing an EGR delete so thought it would be a good time to look into a catch can while I'm helping the engine breathe. Any recommendations for tidy/easy fitment? Expand I personally wouldn't bother, and I haven't on my build. Instead I've run the cam cover breather right to the rear of the car, past the rear wheels just incase the worst happen. I've seen oil catch cans with a filter breather on mounted of the left hand side of the bay, quite near a hot turbo. I certainly wouldn't want any kind of oil vapour near a hot turbo. Quote Link to comment Share on other sites More sharing options...
Big Supes Posted October 25, 2021 Author Share Posted October 25, 2021 On 10/25/2021 at 12:24 PM, Frank Bullitt said: -10 AN fittings welded to the cam covers and the Real Street catch can. https://www.realstreetperformance.com/real-street-performance-10-billet-baffled-catch-can-black-with-breather-filter.html Expand Thanks Frank. Looks a good fit for the job. Quote Link to comment Share on other sites More sharing options...
Big Supes Posted October 25, 2021 Author Share Posted October 25, 2021 On 10/25/2021 at 1:19 PM, Burna said: I personally wouldn't bother, and I haven't on my build. Instead I've run the cam cover breather right to the rear of the car, past the rear wheels just incase the worst happen. I've seen oil catch cans with a filter breather on mounted of the left hand side of the bay, quite near a hot turbo. I certainly wouldn't want any kind of oil vapour near a hot turbo. Expand I hear what you're saying. I just don't like increasing the engine load/output while running the stock breathers or a system restricted by the PCV valve. Still haven't decided whether to keep or delete the charcoal canister so it'll either be mounted there or I'll find somewhere suitable. Quote Link to comment Share on other sites More sharing options...
Burna Posted October 25, 2021 Share Posted October 25, 2021 On 10/25/2021 at 1:39 PM, Big Supes said: I hear what you're saying. I just don't like increasing the engine load/output while running the stock breathers or a system restricted by the PCV valve. Still haven't decided whether to keep or delete the charcoal canister so it'll either be mounted there or I'll find somewhere suitable. Expand Keep the charcoal filter, you don’t want the smell of petrol fumes in the cabin Quote Link to comment Share on other sites More sharing options...
Big Supes Posted October 25, 2021 Author Share Posted October 25, 2021 On 10/25/2021 at 1:41 PM, Burna said: Keep the charcoal filter, you don’t want the smell of petrol fumes in the cabin Expand Na, if I did, I'd run a system identical to your oil breather system Quote Link to comment Share on other sites More sharing options...
CBR Posted October 27, 2021 Share Posted October 27, 2021 I would run a line from the exhaust valve cover to the air intake and keep the pvc. Just like stock. Quote Link to comment Share on other sites More sharing options...
Halfwalker Posted November 2, 2021 Share Posted November 2, 2021 Radium has the most gorgeous stuff ... http://www.radiumauto.com/Dual-Catch-Can-Kit-MKIV-Supra-P1343.aspx I have the vent-to-engine (intake) version, though I did redo the exhaust-side lines from 8AN to 10AN. The thinking there is that the intake manifold side with the PCV valve handles idle and in-vacuum situations via the 6AN lines. Once into boost you really want it vented, hence the exhaust side 10AN lines and utilizing vacuum from the intake pipe before the turbo. Quote Link to comment Share on other sites More sharing options...
Big Supes Posted November 3, 2021 Author Share Posted November 3, 2021 On 11/2/2021 at 7:12 PM, Halfwalker said: Radium has the most gorgeous stuff ... http://www.radiumauto.com/Dual-Catch-Can-Kit-MKIV-Supra-P1343.aspx I have the vent-to-engine (intake) version, though I did redo the exhaust-side lines from 8AN to 10AN. The thinking there is that the intake manifold side with the PCV valve handles idle and in-vacuum situations via the 6AN lines. Once into boost you really want it vented, hence the exhaust side 10AN lines and utilizing vacuum from the intake pipe before the turbo. Expand Looks pretty decent. I opted for the Real Street catch can and have found a nice location to mount it while maintaining my cruise control and charcoal canister. 1 Quote Link to comment Share on other sites More sharing options...
Big Supes Posted November 10, 2021 Author Share Posted November 10, 2021 Can anyone recommend a -10 aluminium boss that I can weld onto my cam covers? My local hypahose are struggling to get them as they're currently on back order. Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted November 10, 2021 Share Posted November 10, 2021 https://www.gwr-fasteners.co.uk/an10-male-aluminium-weld-on-fitting-with-a-round-base-50730-p.asp 1 Quote Link to comment Share on other sites More sharing options...
Big Supes Posted November 11, 2021 Author Share Posted November 11, 2021 On 11/10/2021 at 9:30 PM, Frank Bullitt said: https://www.gwr-fasteners.co.uk/an10-male-aluminium-weld-on-fitting-with-a-round-base-50730-p.asp Expand Perfect, cheers Frank! 1 Quote Link to comment Share on other sites More sharing options...
Rostr02 Posted November 13, 2021 Share Posted November 13, 2021 I have the PHR catch can. I retrofitted but have not installed yet. Quote Link to comment Share on other sites More sharing options...
Halfwalker Posted November 16, 2021 Share Posted November 16, 2021 @Big Supes - How did you mount that catch-can ? Got any pics ? Quote Link to comment Share on other sites More sharing options...
Big Supes Posted November 16, 2021 Author Share Posted November 16, 2021 On 11/16/2021 at 2:28 PM, Halfwalker said: @Big Supes - How did you mount that catch-can ? Got any pics ? Expand Just waiting on my cam covers to come back from the welders and it'll all be plummed up, but to show you where and how I'm mounting it, I've attached two pics below. A 70mm P-clip bolted onto my EGR blanking plate does the trick quite nicely. Not sure if J-spec cars have these holes in the back back of the plenum, but I'm sure it wouldn't take much to find something else to bolt onto. Hope this helps. Quote Link to comment Share on other sites More sharing options...
Halfwalker Posted November 16, 2021 Share Posted November 16, 2021 Nice and simple. Good work. I already have the Radium setup ready to go, was just curious. Quote Link to comment Share on other sites More sharing options...
Big Supes Posted November 16, 2021 Author Share Posted November 16, 2021 On 11/16/2021 at 5:49 PM, Halfwalker said: Nice and simple. Good work. I already have the Radium setup ready to go, was just curious. Expand It's a bit like the weekly recycling bin day... you open the lid and wonder how on earth you can fit more stuff in there before putting it out. I like nice and simple. Quote Link to comment Share on other sites More sharing options...
Burna Posted November 17, 2021 Share Posted November 17, 2021 I still don't understand the need to fit an oil catch can tbh, but that's a nice neat install mate Quote Link to comment Share on other sites More sharing options...
Big Supes Posted November 17, 2021 Author Share Posted November 17, 2021 On 11/17/2021 at 7:53 AM, Burna said: I still don't understand the need to fit an oil catch can tbh, but that's a nice neat install mate Expand Thanks bud. It might not be imperative, but it's important enough to me that, whilst I was doing the cam cover seals and deleting the EGR, it was a good opportunity to get it in there. When considering increasing the power over 100% from the factory output, I believe a catch can is important to alleviate any blow-by causing crankcase pressure. Crankcase pressure after all works against making power. Like I said before, I've always ran them on cars where I've increased the power by a sizable amount. It's a good habit, IMO. Quote Link to comment Share on other sites More sharing options...
Burna Posted November 17, 2021 Share Posted November 17, 2021 On 11/17/2021 at 9:23 AM, Big Supes said: Thanks bud. It might not be imperative, but it's important enough to me that, whilst I was doing the cam cover seals and deleting the EGR, it was a good opportunity to get it in there. When considering increasing the power over 100% from the factory output, I believe a catch can is important to alleviate any blow-by causing crankcase pressure. Crankcase pressure after all works against making power. Like I said before, I've always ran them on cars where I've increased the power by a sizable amount. It's a good habit, IMO. Expand I understand what you’re saying, but I’d rather vent to atmosphere, which I do, and never seen the point of collecting any oil in a catch can Quote Link to comment Share on other sites More sharing options...
Big Supes Posted November 17, 2021 Author Share Posted November 17, 2021 On 11/17/2021 at 9:37 AM, Burna said: I understand what you’re saying, but I’d rather vent to atmosphere, which I do, and never seen the point of collecting any oil in a catch can Expand I guess it boils down to closed verses open breather systems. When venting to atmosphere some people believe you need to run larger hoses as you lose the sucking from the inlet. There's also the downside of moisture build up in the crankcase. A closed system works a bit more as per the manufacturer intended. The catch can catches the vapour, removes the oil and returns cleaner vapour back into the system while maintaining a closed system. Quote Link to comment Share on other sites More sharing options...
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