Installing Oil Catch Can

[iseekool]

Hi all,

Just wondering if it is worth having an oil catch can for my n/a r34 Skyline.

I've noticed some amount of oil in the plenum when i went to change my spark plugs.

Cheers

[Yawn]

Theres no harm fitting one. I would if you are looking at doing some track days.

[SHANE666]

off topic

but Mike

that 32

is SEX!

[Yawn]

Hahah thanks! More pics of it in the latest 10 pages (i think) of the 32 pics only thread if you can find em

[iseekool]

Are there any recommendations for catch cans? I've had a look on the web and there seems to be different types.

[Yawn]

They are all similar save the shape of the can itself and the holding capacity.

[GTS4WD]

How do you know when your engine is being starved of oil?

I mean its not like when the engine is being starved of fuel and all power cuts out..

[screamin']

How do you know when your engine is being starved of oil?

I mean its not like when the engine is being starved of fuel and all power cuts out..

You run a big end...

I don't see the point of running a catch can unless you have a lot of blow by. Neither of my Skylines run one and all i get is a slight smear of oil fumes in the intake.

Skylines run a closed curcuit breather system where they don't vent to atmosphere. Old school N/A's used to vent to atmosphere and when revved hard (or cornered hard) they would throw oil out the breathers, thus the need for a catch can.

I race my R32 rallycar pretty much every weekend and rev the crap out of it, not unusual to see over 8,500rpm on the clock, and it burns/looses no oil and has minimal blow by. What good is a catch can going to do for me???

I think with turbo applications it is a little different, as they seem to have a certain amount of blow bydue to boost.

My 2c.

[Yawn]

Yeah I do get a tiny tiny bit of blowby even on a fresh engine. Its more of a engine health check kinda thing to me, and there is no disadvantage to fitting one, besides the cost, as far as i see it.

[iseekool]

Thanks for the advice guys. I think i'll forget about the catch can for the time being. Possibly in the near future i'll consider one.

[4 door love]

does anyone know where there is a diagram of where to hook on up to??

all the ones i have seen are for DET and look complicated with hoses running everywhere

[4 door love]

i have a catch can waiting to go in the car just dont know exactly which hoses go where. all the pics i have seen are for the turboed rb20 and are fully plumbed back woth hoses going everywhere.

does anyone have a pic of a catch can on a NA.

thanks

[Eug]

just two hoses... one from engine and one to intake, same as DET

[4 door love]

thanks eug.

[R34GTFOUR]

you just t-peice into the oil breather line that goes to your intake. The whole purpose is for the can the "catch" the oil and stop it going into the intake. So run the line that normally goes into the intake (the one coming from the engine) onto the catch can, then run a return line from the catch can back into the intake.

Also, if you're buying a cheap catch can off ebay that has no baffels to catch the oil, stick some steel wool inside the can, otherwise its not going to do much.