Oil Catch tank?

arrrggghhhh!!! this thread is mad! i want a catch tank but now thinking maybe not. more photos of your set ups guys! which way is best??

spectre can we see your set up?

Iv seen catch tank hoses from the engine then to the catch tank then the second catch tank hole with a small fillter on it and another small filter on the part that has the vis on it. Is this right or is the way marky mark has done his the right way? (engine to catch tank, catch tank to the bit that has the vis) Sorry if im not making sense but im no machanic :bh

V8STEVE said:

Hi there, sorry for bringing this back from the dead, but as I bought Deans 180, I now want to fit the catch tank (I bought the car before Dean got round to this mod). I've just got the tank from 800bhp.com and I'd like to do the mod 180boy has done;

If you really want to burn off those vapors then insert a ¼ inch tube into you exhaust system with a 45° slash cut facing away from the gas flow (venturi effect), then run a length of hose from this tube to the catch can, this will vent the crank case vapor and burn it with the exhaust gases on the way out, doesn’t have to be ingested this way, and it keeps your catch can empty as the exhaust sucks from the can.

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Even though this might be ott I think it seems like the best idea (and I like OTT)
Just a couple of questions, where abouts in the exhaust does this 1/4" tube need fitting i.e. as far back as poss before/after the cat etc. and will the same rubber tube be ok or is there some extra high temp tube needed?

Thanks Steve

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Does anyone know if the same rubber tube used to take the oil fumes from the breather pipes to the catch tank will be ok to use to take fumes to the exhaust? or will the exhaust be too hot and burn/melt it? What tube should I use?
Cheers

V8STEVE said:

Does anyone know if the same rubber tube used to take the oil fumes from the breather pipes to the catch tank will be ok to use to take fumes to the exhaust? or will the exhaust be too hot and burn/melt it? What tube should I use?
Cheers

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I don't think anyone has done this on a zs. 180boys mod is on his honda. he would be the one to contact for advice on this and how to do it.

redzs180 said:

arrrggghhhh!!! this thread is mad! i want a catch tank but now thinking maybe not. more photos of your set ups guys! which way is best??

spectre can we see your set up?

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I ditched mine in the end as it had nothing in it and my MR2 needed a catch tank more, I just have both breathers piped to below the bumper level at the front. No smell, no chance of vapur in the inlet and a bit more power to boot.

Never understood why people put them inline as it defeats the object really.

If you'r plumbing it into the exhaust you should be ok to use good quality scilicon tube as long as you have a decent length of copper pipe running into the exhaust like over 12 inches or so. Also remember to fit a flash back arrester incase of a backfire, you dont want flames inside your crank case!

EDIT:- jsut noticed your in Portsmouth, if your ever passing Guildford you can come have a look but tere is not much to photo except for 2 more black pipes cable tied to my induction kit.

cheers for that spectre, i might take you up on that offer, as im seriously considering it and have been for a while, and if your set up improves throttle response then that sounds good to me!

if i just blocked up both pipes coming out of the throttle body the one at the front of the butterfly and the one behind and then vent the pipes from the inlet manifold that went to them into the atmosphere will my car run ok and not blow it up. thanks

scottambrose said:

if i just blocked up both pipes coming out of the throttle body the one at the front of the butterfly and the one behind and then vent the pipes from the inlet manifold that went to them into the atmosphere will my car run ok and not blow it up. thanks

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This is how my car is, been like it 18 months/12k miles and not blown up yet!

Cleaned out my catch tank today and it was more or less bone dry hardly any oil collected, and the baffles were still like new. The car has done around 5k miles since fitting it, and this is the first time I have inspected it.

A brand new plenum was fitted last May and the vis motors show no signs of oil, is this normal? I just thought there would be more oil collected in the tank?

180 Boy said:

Crank case pressure isn’t just a build up of oil vapor; it contains all sorts of stuff.
That little mix is then ingested, if you look at the butterfly on your throttle body you’ll see a build up of brown deposits, that’s the oil vapor going back in, add to that the natural moisture content crated by condensation and of course fuel plus burnt gases that pass your rings, which happens to be another reason why you get crank case pressure.
Add all those lovely waste deposits up and they create a wonderful cocktail, which the factory decides is ok to burn again.
If you really want to burn off those vapors then insert a ¼ inch tube into you exhaust system with a 45° slash cut facing away from the gas flow (venturi effect), then run a length of hose from this tube to the catch can, this will vent the crank case vapor and burn it with the exhaust gases on the way out, doesn’t have to be ingested this way, and it keeps your catch can empty as the exhaust sucks from the can.

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Would a HHO Flame arrestor do the same job? ive found one that also doubles as a check valve so no flames in the crankcase in the event of a misfire and no chance of pressuring the chrank case and trashing your rings.

aldon said:

HA HA, it took all of 10 minutes, cut the pipes clamp a filter on the appropriate ends and screw 2 x 10mm bolts into the TB pipes.

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Hi all. I am also one of these people, the more I read the more confusing it gets. After studying ur pic u have filters on both breathers. I assume the larger pipe then must just suck air into the chambers. So therefore there is 100% no need for tank as u can't suck oil out of air. Then on the smaller hose which also has filter on, after the tank. but doesn't the oil vapour and gunk come out the chambers through the small pipe into ur tank and then what don't get caught in the tank clogs up the filter.

Hello can anyone help me on this i need to fit an oil catch tank to my 2003 mg zs 180
Would anyone have any pictures they could send me so i no how it looks please
I have do one back in 2015 and i realy cant remember how i did it but it sounds like i fitted it wrong cheers