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Home > Beginners Tech > Oil Catch Tanks and Engine Breathers | |||||||
![]() 47 Posts Member #: 9273 Member |
24th Jan, 2011 at 10:39:45pm
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1083 Posts Member #: 8932 Post Whore |
24th Jan, 2011 at 10:53:35pm
As far as i'm aware there more generally used on high revving engines. there used with breathing setups that breathe the rocker cover, timing cover and crank case. i'm not sure how effective this would be on a turbo engine but no doubt there are people on here with one. (and more info about them)
Edited by george91 on 25th Jan, 2011. |
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62 Posts Member #: 3668 Advanced Member NEW ZEALAND - moving to Australia |
24th Jan, 2011 at 11:43:00pm
i use a oil catch can on my evo, so y not use one on ya turbo mini?
1966 MK1 1034CC TURBO MINI |
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3591 Posts Member #: 655 Post Whore Northern Ireland |
25th Jan, 2011 at 12:21:26am
Looks like a tidy job. 9.85 @ 145mph
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![]() 9812 Posts Member #: 332 Resident Cylinder Head Modifier Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem |
25th Jan, 2011 at 04:15:28pm
the A series engine likes to breath well, especially a forced induction one,
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![]() 3329 Posts Member #: 184 Senior Member Melton Mowbray, Pie Country |
25th Jan, 2011 at 07:16:10pm
On 24th Jan, 2011 DVSMNI said:
1L can - 1000cc engine 1.3L can - 1275cc engine I have never heard that before, what is the reasoning behind it? The MSA just requires a 1L tank, the thinking being that if the engine shits its biscuits the catch tank will catch the oil, to a certain extent. http://www.twin-turbo.co.uk
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62 Posts Member #: 3668 Advanced Member NEW ZEALAND - moving to Australia |
25th Jan, 2011 at 09:32:49pm
to behonest im not to sure, its something to do with our motorsports here in new zealand, as i went to enter a track day and they said my catch tank was to small for size of engine, as i was using my evo being a 4g63T 2L and since i was told that i just went with what the offical said. :) must be differnt in england im sure theres a reason for it .... 1966 MK1 1034CC TURBO MINI |
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![]() 3329 Posts Member #: 184 Senior Member Melton Mowbray, Pie Country |
25th Jan, 2011 at 09:36:01pm
imaging you had an 8 litre V8, that would be a big catch tank. http://www.twin-turbo.co.uk
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62 Posts Member #: 3668 Advanced Member NEW ZEALAND - moving to Australia |
25th Jan, 2011 at 09:37:33pm
just found this ... http://www.mnz.co.nz/download/Sports_Produ...Regualtions.pdf
1966 MK1 1034CC TURBO MINI |
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![]() 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
25th Jan, 2011 at 09:43:16pm
well thats bollocks all help lol On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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62 Posts Member #: 3668 Advanced Member NEW ZEALAND - moving to Australia |
25th Jan, 2011 at 11:21:42pm
haha woops my bad there was a pice in there about the sizing of catch tanks... sorry ill try find it and post just that. 1966 MK1 1034CC TURBO MINI |
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3591 Posts Member #: 655 Post Whore Northern Ireland |
26th Jan, 2011 at 10:41:58am
On 25th Jan, 2011 Ben H said:
imaging you had an 8 litre V8, that would be a big catch tank. Not really. The bigger the catch tank the longer it can be left before emptying. The bigger it is, also depending on design, the better it can be at separating oil/air products SO size can help, design is far more important. Ideally fit a tank/system with a return back to the sump. That way it pretty much needs zero maintenance, as any deposits get returned back to the sump. But if the system as proper oil/air separators, then there will be minimal deposits left in the tank. 9.85 @ 145mph
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![]() 3329 Posts Member #: 184 Senior Member Melton Mowbray, Pie Country |
26th Jan, 2011 at 12:51:57pm
this was just in reference to the 'rule of thumb' quoted above. it would plainly be rediculus to have an 8L tank. And as for longer between emptying I am not sure I would like 8L of oil sat in my car doing nothing.
On 26th Jan, 2011 stevieturbo said:
On 25th Jan, 2011 Ben H said:
imaging you had an 8 litre V8, that would be a big catch tank. Not really. The bigger the catch tank the longer it can be left before emptying. The bigger it is, also depending on design, the better it can be at separating oil/air products SO size can help, design is far more important. Ideally fit a tank/system with a return back to the sump. That way it pretty much needs zero maintenance, as any deposits get returned back to the sump. But if the system as proper oil/air separators, then there will be minimal deposits left in the tank. http://www.twin-turbo.co.uk
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3591 Posts Member #: 655 Post Whore Northern Ireland |
26th Jan, 2011 at 08:24:15pm
On 26th Jan, 2011 Ben H said:
this was just in reference to the 'rule of thumb' quoted above. it would plainly be rediculus to have an 8L tank. And as for longer between emptying I am not sure I would like 8L of oil sat in my car doing nothing. If I had 8 litres of any oil in a catch tank on any engine I'd be worried lol Especially when there is only 5 in the sump to start with.. Point is, it doesnt actually need to be very big at all if it is designed properly. Most of the crap on egay doesnt have any ability to separate the oil/air. In fact, even some branded tanks like Mocal dont either ! All that is needed is some chamber volume and internal baffles to make it very difficult for liquids to pass through, but air will get past no problem. Some might even add some mesh or stainless steel wool etc to catch deposits ( even a plastic scouring type pad would do ) And better still if you have a return from the lowest part of the tank, back into the sump, below the level of the oil. Then anything caught always gets returned back to the sump. So it never needs emptying. 9.85 @ 145mph
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![]() 3329 Posts Member #: 184 Senior Member Melton Mowbray, Pie Country |
26th Jan, 2011 at 08:45:45pm
I totally agree, Steve. Much more than a 1L tank is not necessary.
http://www.twin-turbo.co.uk
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3591 Posts Member #: 655 Post Whore Northern Ireland |
26th Jan, 2011 at 11:40:18pm
It will look bad in the tank because the tank is cold, you'll get condensation etc.
9.85 @ 145mph
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1083 Posts Member #: 8932 Post Whore |
30th Jan, 2011 at 12:20:15am
Sorry if my orginal post was misleading, you learn something new everyday. So is it considered nescessary to have one on a turbo motor? Edited by george91 on 30th Jan, 2011. |
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31 Posts Member #: 9334 Member |
30th Jan, 2011 at 01:28:20am
Crank case ventilation is about getting rid of the pressure from heat and piston blow by gasses. It's more complex on a turbo because you're running the induction at higher than atmospheric pressure as well as higher cylinder pressure and temperatures.
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![]() 4360 Posts Member #: 1459 En-suite user Braintree, Essex |
30th Jan, 2011 at 03:09:31pm
Very interesting point Steve. Never occured to me to baffle a catch tank. Probably extends the life of any filters attached too.
On 26th Jan, 2011 stevieturbo said:
All that is needed is some chamber volume and internal baffles to make it very difficult for liquids to pass through, but air will get past no problem. Some might even add some mesh or stainless steel wool etc to catch deposits ( even a plastic scouring type pad would do ) On 19th Jan, 2010 wil_h said:
I would start the furthest place from the finish. On 24th Mar, 2012 apbellamy said:
I feel all special knowing that I've given your mum my wood. Been neglecting Turbo'd 'A' series.............. |
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806 Posts Member #: 989 Post Whore North Yorkshire |
30th Jan, 2011 at 03:39:25pm
The problem with that is the oil has the effect of reducing the octane rating of the petrol, which you definitely don't want on a forced induction engine. Best to keep the oil away from the inlet whether on boost or not.
On 30th Jan, 2011 TMF interloper said:
It'd be best hooked up to the inlet manifold via a non return valve, like the Metty Turbo was, with an alternative vent (Metty's was in to the air filter case) for when it's on boost. |
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![]() 31 Posts Member #: 1961 Member Wellington New Zealand |
1st Feb, 2011 at 10:56:55am
DVS Mini , NZ motorsport catch can size is based on CC rating threshold. NA Engines up to 2000cc need a 1 litre catch can , above 2000cc needs 2 litre catch can.
On 25th Jan, 2011 DVSMNI said:
haha woops my bad there was a pice in there about the sizing of catch tanks... sorry ill try find it and post just that. |
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
1st Feb, 2011 at 11:20:22am
yeah, but you try and find one of the valves fitted. I have them on my Nimbus and would love them for my Sprint, but don't even know where to start looking.
On 30th Jan, 2011 TMF interloper said:
Crank case ventilation is about getting rid of the pressure from heat and piston blow by gasses. It's more complex on a turbo because you're running the induction at higher than atmospheric pressure as well as higher cylinder pressure and temperatures. It'd be best hooked up to the inlet manifold via a non return valve, like the Metty Turbo was, with an alternative vent (Metty's was in to the air filter case) for when it's on boost. Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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Site Admin ![]() 15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
1st Feb, 2011 at 11:22:43am
Wil a Peugeot 306 TD is fitted with what I think is a one way breather valve, it is usually in a bracket attached to the side of the top mount I/C.
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
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![]() 16540 Posts Member #: 4241 King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner Rotherham, South Yorkshire |
1st Feb, 2011 at 11:27:45am
Which two valves Wil? That big plastic thing that controls the return to the airbox and another? On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it ![]() |
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
1st Feb, 2011 at 11:35:16am
There are two. A big one that is connected to the airfilter, inlet manifold and breathers (the one on the Nimbus is orange), and a little one-way one on the inlet manifold (I have the one for the inlet manifold, or at least something similar). Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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