Oil From Breather Rb25

[rad100]

hey i had a private track day (grip) today,

its a rb25, gt3076, oil filter and relo kit with cooler, injectors, nistune z32..

now on my first session i was driving fair hard and hit the limiter on a couple of occasions coming out of corners..

i get back to the pits to find oil has gone all over my engine bay from the top breather.

as i have a metal intake pipe the breather doesnt breathe to the intake..

so next session we put a bottle with a hose fromt the breather into to, and that bottle fills (400ml)

empty it then next 2 sessions nothihg, same driving style..

final session another full botltle

so over all i would have lost 1ltre of oil.. any ideas why?

[The Mafia]

There is a thead titled "oil control" something something" that is about 100 pages long. Explains exactly why your RB engine does this.

[rad100]

ahh k.. was searching other things soorry.. ill have a sus!

[rad100]

ok so i read that thread and also emailed some mechanics and found i would be up for around $1800 for the mods to the head..

is there a way i can set up a catch can to drain back to the sump?

drill and tap a fitting into the sump and run a hose from the top breather to the sump?

anyone had to setup something on there car to catch the oil and drain back? as i cant keep loosing 200-500ml of oil every 15min track session..

cheers

[NYTSKY]

Had this happen to my engine at Oran Park.

I fitted 26 covers for more volume, Mines cam cover baffles and new breather/catch can setup.

I have clear breather hose and after many laps of EC i dont even get oil film on the hoses

[JiN_MaN]

ok so i read that thread and also emailed some mechanics and found i would be up for around $1800 for the mods to the head..

is there a way i can set up a catch can to drain back to the sump?

drill and tap a fitting into the sump and run a hose from the top breather to the sump?

anyone had to setup something on there car to catch the oil and drain back? as i cant keep loosing 200-500ml of oil every 15min track session..

cheers

Lots of people do this and the ones I have seen have plumbed into the oil return line.

[badhairdave]

I must be one of the lucky ones or something.

I did over 10 track days in my r32 with rb25 and a few skid pan days and it never breathed a drop. It was just a stock s1 rb25 making 260-288rwkw.

Plus i always ran an extra 1/2 litre of oil in the sump to avoid surge.

If it's straight oil and doesn't smell fuelly it's the usual rb breather problem. If it does then you have dead rings.

[rad100]

Lots of people do this and the ones I have seen have plumbed into the oil return line.

so u saying i can tap and threada fitting into the sump to drain directly back in?

[beehive]

I must be one of the lucky ones or something.

I did over 10 track days in my r32 with rb25 and a few skid pan days and it never breathed a drop. It was just a stock s1 rb25 making 260-288rwkw.

Plus i always ran an extra 1/2 litre of oil in the sump to avoid surge.

If it's straight oil and doesn't smell fuelly it's the usual rb breather problem. If it does then you have dead rings.

its ok to add a half litre?

[badhairdave]

yeah, it's cheaper and easier than getting a decent sump

[dori34]

If it's straight oil and doesn't smell fuelly it's the usual rb breather problem. If it does then you have dead rings.

This is what i have

rings are def gone lol

[STATUS]

Dont drain it back to the sump, generally it gets condesation contamination etc and its the last thing you want back in the sump.

[rad100]

im going rb26 rocker covers and mines baffle kit..

then a vented catch can to collect any excess..

is it a hard job removing and fitting the new rocker covers?

[NYTSKY]

Dont drain it back to the sump, generally it gets condesation contamination etc and its the last thing you want back in the sump.

What he said, this happens especially with E85.

[rad100]

if anyone can get hold of blitz for me that would be great!!