Catch Can Advice :)

[jet2nv]

hey guys i know its been covered alot

heres a pic of my setup i kno its a cheap catch can but i just wanted to try this setup before spending some money on a nice neat one

i have 2 90degree fittings off the rocker covers goin into the catch can then near the end of the drivers side rocker cover i have a T-piece which i know its ilegal but it hides down behind the motor and vents to ATMO will this work fine do you think

heres a pic

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Edited January 8, 2012 by jet2nv

[toffy]

They don't breath enough air have a look at the outlet of the catch can , i bet it's smaller than one of the rocker outlets , they choke your motor to death.... Spend the money and do it right the first time

[Hanaldo]

Yeh, my one of these is bone dry constantly, never catches anything even with steel wool.

Have since bought a Pro Fab item.

[jet2nv]

the outlet on the can is 15mm just trying to work out if the hose off the T-PIECE as a breather is ok for it to goto atmo rather then infront of the turbo

[Hanaldo]

Does the hose have a filter on it? You'll be sucking in dirt if it doesn't.

[jet2nv]

no filter on the end of it sucking it i thought it vents out??

ive seen heaps of people run hoses smaller then mine off just the one rocker breather and there motor doesnt die

[jet2nv]

so maybe i should just run the 2 rocker cover breathers into one hose the just one the other hose to go hide somewhere with nothing on the end of it????

[Hanaldo]

I was thinking at idle, but on second thoughts I think it is still pressurized then anyway.

[jet2nv]

so how ive got it set up is good for now or should i run the 2 rocker covers into one outlet on the can and the second as a breather

my motor has no blow by what so ever i just removed the stock intake pipe for a metal 3inch and it doesnt have a nipple for me to connect the hose back on it

cant excatly have filters on catch cans in VIC hence why i hid the hose

[jet2nv]

ok so maybe i should have both hoses goin to the catch can but have a T-piece at the rocker cover and have it going in front of the turbo then or i can put a filter on the breather hose i have

WHICH WOULD BE A BETTER IDEA

CHEERS

unless i can find a washer bottle and catch can in one

[Hanaldo]

unless i can find a washer bottle and catch can in one

Post #94, that's the one I just had made: http://www.skylinesaustralia.com/forums/topic/385051-pro-fabrications-fabrication/page__st__80

Speak to Brad (Risking)

[jet2nv]

yeah i sent him a pm earlier today just waiting on a reply and idea on price

as a r33 use the window washer bottle there so might be tricky giving the littlre motors

[abr33]

It will idle high and suck shit in at idle if your pcv is still operational

[boostn0199]

Easiest way is either tee the hose between the rockers and run that to the inlet on the catch can and then run the other inlet on the catch either into your intake pipe or vent it.

Edited January 8, 2012 by boostn0199

[jet2nv]

ok so i ran both rocker covers into one hose with a t piece then left the other hose as a breather but its sucking air in and its like the afm is hunting now

[jet2nv]

ive followed all the instructions i can find i used the oil catch can diy for rb25det and still doesnt seem to be running right

[dori34]

Easiest way is either tee the hose between the rockers and run that to the inlet on the catch can and then run the other inlet on the catch either into your intake pipe or vent it.

correct!

i run mine to intake pipe. but if you vent it, make it hidden so it "looks" legal lol

DIY thread if anyone is interested:

http://www.skylinesaustralia.com/forums/topic/309239-oil-catch-can-diy-installation/page__p__5882842__hl__catch+can__fromsearch__1#entry5882842

[jet2nv]

so cause its vented does that explain why the idle is a little weird and its sucking through the hose thats the breather

[W0rp3D]

They don't breath enough air have a look at the outlet of the catch can , i bet it's smaller than one of the rocker outlets , they choke your motor to death.... Spend the money and do it right the first time

When i removed my original hose that went to the intake i noticed that there was a reducer inside, would be lucky if it was 5mm, more like 3mm ID so a single 10mm ID hose will breath more than enough.

[R33 Eddy]

so cause its vented does that explain why the idle is a little weird and its sucking through the hose thats the breather

you need to block your PVC pipe otherwise at idle or any time your not boosting it the engine will breath through the PVC and then through the catch can and through that hose hidden and that Air is un metered

do a search about PVC and correct catch can setup but once you block the PVC you will be fine.