jake1989

iTrader: (4)

I KNOW WHAT THEY DO BUT DO THEY ACTUALLY WORK WELL?
SO IS IT WORTH FITTING ONE?
SEEN THEM ON EBAY BUT I GUESS THEY ARE SH*TE ONES
IF THEY ARE WORTH FITTING WHATS A GOOD ONE TO BUY?

MattyB1983

iTrader: (51)

Yes they are worth it.
Dont worry about brand, a catch can is a catch can at the end of the day.
A £200 RCM one does the same job as a £30 ebay one as long as they are plumbed in properly.

keljon

iTrader: (10)

Always worth fitting to a modified engine, roger Clarke do a decent one

jake1989

iTrader: (4)

okay thanks! i was thinking the same that surely there cant be much difference will be buying an ebay one now then! lol

Ginge !

iTrader: (1)

For spirited driving/track use be sure you have a large catch can with a return to sump,,, oy time my impreza uses oil is on track

I was using around 1/2 a litre of oil each lap of the nurburgring so I'm fitting a more advanced breather set up with -10 return to sump with a adaptor where the sump goes

Shaks-STI

iTrader: (7)

Doesnt matter if its RCM or Ebay. You can even make it out of a Coke can if you want, all you need is a catch can.

MattyB1983

iTrader: (51)

Yep, ive used an old coke bottle before :-)

Why anyone would pay over £200 for one is beyong me, if thats not paying for a name I don't know what is !!!

jake1989

iTrader: (4)

really a coke bottle?haha brilliant!lol rcm want £280 plus p&p!! picked a decent looking one off ebay for £25 delivered

nyscooby

iTrader: (12)

get a baked bean tin... drill 15mm inlet and exit hole. get wire wool... fill it up.... bingo... catch tank.



obviously get pipes and pipe it up...!!


15mm is guidline... size accordingly.


remember to remove beans.

martin850

iTrader: (51)

I am also thinking of getting one. I hear a lot about 2ports are not as good as three. Is this true or just a myth?

MattyB1983

iTrader: (51)

Basically a three port would be better as there are three breathers you need to connect. 2 from the rockers and 1 from the crank case. If you have a 3 port can then each breather has its own port. However, if you only have a 2 port can then just tee the two rocker breathers together.
I opted to use 2 cans. One for my rocker breathers and one for the crank case. This is not nessasary but I removed my air con so wanted to fill the gap in the bay.

Cannon Fodder

iTrader: (100)

OBP manufacture a very nice Subaru specific catch can with the correct sized ports that match the breather outlet port sizes, and it has three ports which is more desirable than having to have combine inlet hoses.

They are baffled, well made and far cheaper than the RCM product but more expensive than some of the eBay jobbies.

nyscooby

iTrader: (12)

did i mention you can use pea tins also...?

tubbytommy

iTrader: (20)

i have an obp 3 port baffled version too,

its amazing the amount of crap it catches and if it wasnt going in the can it would be going back into the inlet.

sunnyjones003

iTrader: (12)

im thinking of the same, so how does it breathe ?? obvious a 3 port can would be 3 for breathing and one for a return sump. so do you attach a little filter to it??

tubbytommy

iTrader: (20)

i dont return to sump due to it also catches a fair bit of moisture and i dont want that in my oil, i have a breather that runs to the underside of the car.

i just empty it every few weeks.

sunnyjones003

iTrader: (12)

i cant find them on the web ??
do you have a link or something

tubbytommy

iTrader: (20)

http://www.obpltd.com/

MattyB1983

iTrader: (51)

I wouldn't advise a return to sump. If you saw what is caught in the can you wouldn't want that sent back into your sump.

Theres a few cans on ebay that have two ports and a filter on the top.
Tee the two rocker breathers together and feed to one port and use the other port for the crank case.
Sorted.

ad uk

iTrader: (6)

I have a catch can and no way do I want all that crap going back to sump not with the crap in it but I suppose its personal preference

lord shaun 83

i have a catch can, thing is it dose not seem to get anything in it?? better get checking plumbing i think!

Cannon Fodder

iTrader: (100)

If it isn't plumbed up properly then the chances are that any oil vapour will end up going back through your turbo and collecting in your intercooler.

It might be worth your time to remove the hoses connected to your intercooler and making sure they aren't dripping with oil, if they are then you'll have to get the intercooler chemically cleaned.

tubbytommy

iTrader: (20)

as ty says if its working properly the intercooler will be oil free, i fitted mine prior to changing to a fmic to avoid my new intercooler getting oil inside.

martin850

iTrader: (51)

Have seen on Facebook earlier that CDF Racing are starting to make 3 port catch cans. Gonna be around £60-£70 inc pipe work and in many colours.

Ginge !

iTrader: (1)

Where do you think the crap came from ?

Think about this fir a bit

Filter in a breather with return to sump is fine as otherwise you will use loads of oil ,,, change the oil regular and all will be fine,, I'm fitting 2 cans with transit oil filters inside and one feeds the other with the second returning to sump,,,, it may not work but I'm sure if I change the filters every 3k I should be ok and won't waste oil each lap

lord shaun 83

cheers guys, yes i had the cooler off a couple of weeks ago when i was checking for split hoses, there was traces of oil in there but nothing really out of the ordinary.. the catch can definately isnt plumbed right somewhere.

MattyB1983

iTrader: (51)

My car didn't use a drop of oil and my cans were not plumbed back into the sump.
Admittedly I didn't use it on track but was driven very hard on the road.
For road use I wouldn't suggest return to sump setup.
If your using that much oil on track then id be wondering why.

Turbotits

iTrader: (2)

Mine uses very little. Half a litre per 5000 miles. With catch can. Road and track use. Not plummed to sump either. All i ever get in my can is water thats oily to the touch.

Ginge !

iTrader: (1)

its breathing heavy,,, porsche cup race cars do the exact same thing hence they plumb to sump

road use i dont use much but track days i used 5 litres of oil on a 6 day ring trip

Markfey

iTrader: (7)

Can anyone forward a link for a £30 ebay special with 3 ports