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Rb26 Catch Cans, Baffle Plates, And Vacuum Pumps.

No Crust Racing
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No Crust Racing Grand Master

No Crust Racing

Posted
Posted

My newly acquired car has a vented catch can that is unfiltered and leaks oil from the breather unsurprisingly.

At the moment both rockers are plumbed together then into the can, the can has only a single outlet which is going to atmo at the moment. I haven't checked PCV as yet but given what I can see in this pic, I assume blocked.

post-23873-0-26009200-1446606289_thumb.jpg

I was going to re-attach the atmo connection back to the turbo intake after confirming/fixing the catch can baffling.

That got me reading.

- Do cam baffles work? The Hi Octane one's look cheap if they help. Used on conjunction with the previously mentioned can plumbed back to intake and baffled.

- Hi octane list a separator and a catch can - with a sump drain which I won't be doing. Are both needed on a street car if you have the cam baffles?

- Is something like a GZ Vacuum pump going to better than all of this anyway?
- Plan is for your basic -9 setup so not huge power and only on the street as I have a track car so does any of this really matter besides making it legal again (plumbing to intake).

Cheers

Hadouken Grand Master

Hadouken

Posted
Posted

Read this if you haven't already.

http://www.sau.com.au/forums/topic/345545-oil-catch-canpcv-setups/

Get this catch can

http://justjap.com/jjr-autech-type-oil-catch-tank-nissan-rb26dett.html

Cam baffles are debatable.

If you want to do some more reading look up fatz version 70 gazillion for his catch can setup.

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Anything concrete on cam baffles?

From a guy who installed them (not me) they have a small positive effect - not enough to fix major problems.

If you don't spend a lot of time at WOT I would just run the catch can outlet to the turbo inlet but if you get an unacceptable of amount of oil in the line add an air/oil seperator in that line.

bcozican Experienced

bcozican

Posted
Posted (edited)

Wish it came in black, nothing paint can't fix.

Would allow me to ditch current catch can setup and use that space for oil filter relocation.

Anything concrete on cam baffles?

get it powdercoated .. best thing i did was get all my stuff powdercoated, not very expensive, looks good and 3 x as tough as paint

Edited by bcozican
No Crust Racing Grand Master

No Crust Racing

Posted
  • Author
Posted

Not very expensive vs a can of primer and a can of satin black from bunnings?

I wouldn't mind having the twin turbo pipe done also. Want the bay to be mostly black/stealth.

Wonder what the arc box would look like black.

djr81 Grand Master

djr81

Posted
Posted

- Do cam baffles work? The Hi Octane one's look cheap if they help. Used on conjunction with the previously mentioned can plumbed back to intake and baffled.

- Hi octane list a separator and a catch can - with a sump drain which I won't be doing. Are both needed on a street car if you have the cam baffles?

- Is something like a GZ Vacuum pump going to better than all of this anyway?

- Plan is for your basic -9 setup so not huge power and only on the street as I have a track car so does any of this really matter besides making it legal again (plumbing to intake).

1. No, not really. They don't add much.

2. If you don't have a sump drain you have to drain the catch can itself which is annoying. The separator doesn't need draining which makes it easier.

3. Probably but the merits of all this stuff are debatable.

4. The problem comes about with long periods at full throttle and full revs with cornering forces thrown into the mix. Not something you should be doing on the road.

A small amount of blow by will carry a small amount of oil out of the breather of the catch can. Which makes a large amount of mess.

The alternative is to scavenge it through the turbo suction (This is what Nissan does) which puts it back through the inlet system. You get oil in your inlet this way but it needs to quite a bit to be a problem.

At the end of the day if you are happy with the Hi Octane separator I would run that. If it helps I have one at home I no longer want.

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