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Originally posted by dasic1

I was speaking to Horse Power Factory the other day and this is what there using in there cars
http://www.westernfilters.net.au/product_info.php?products_id=743

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It seems a lot of people with modern diesels engines have used these provent filters with great success. They appear to work very well and stop all vapours downstream.

Cheers

Kamilian,
I have the same greddy catch can, but your intake is in a slightly different position to mine. Is that the gen3 or did u mod it

I also have the same catch can (friend gave it to me for free) 
 
I'm wondering what you did to the can to mod it to work better? (did you put steel wool inside it?)
 
Also what did you mount it to? I'm looking to mount it on my gen2.. but finding it tricky.
 

kameleon

oil goes in and then straight out! i have one of these in the largest hose sizing that has been modded to work properly but not in a std MR2 setup like your after AND has cost more then making my own setup!

i recommend something near the air cleaner mount wise, that has some form of baffling or atleast just some steel wool inside to actually seperate and not just look good.

Back when i first bought my car that was the first mod....

oh! awesome thanks :)

Being open to the atmosphere will have no affect on the motor, aslong as the port on the intake pipe between the turbo and AFM is blocked.
 
If its plumbed back into the intake (pre turbo) then obviously baffles will be required and it will have to be sealed.
 
If its open to the atmosphere then baffles arnt required but may help with oil mist in engine bay
 
The bigger the better realy, keep the hoses and all the fittings the same size or larger than the factory one / L pipe on valve cover, the better the baffle design and number of baffles obviously will work better.
 
Some people may put a drain from the bottom of it back into the sump, most just have a drain bolt on the bottom and check it every now and again and drain it.
 
For CAMS events, if its open to the atmosphere it shall have a 2L capacity, for up to 2L motors and 3L capacity for motors over 2L.
2L is much bigger than most ebay cans, and 3L is huge! i have a 3L but only spot it would fit is the boot!

I have a drain back into the sump. Water isn't an issue as I change the oil regularly anyway - race car.
With the drain in place, I never have to empty the can. Win. I have a small filter that allows the can to vent to atmosphere. I also have a secondary release valve (a dodgy one) with holes drilled in the top of the catch can with race tape over them. If the small filter ever blocks with pressure building up, the race tape will give way and let the pressure out.
You don't want oil mist going back into the intake because it will increase the possibility of pre-ignition - this is particularly important on a turbo race car.

I'll clean it when the engine manages to stay together for more than a couple of hundred Kms