swisstonihasher

Anyone found the crank vent on 2.5L with just a large size rubber pipe fitted to oil catch seems to blow oil? Is there a kind of filter on standard 2.5L's for that pipe so it catches and returns oil but also allows the crank area to breath? Engine is in good condition and almost new, running 1.8 bar so not slow and definately not worn out.

500

They all do it sir! A few people have fitted a catch can that returns oil to the sump. A hard launch can see you loose .5l through the breather!

merlin24

iTrader: (1)

As above
You get a lot of oil splash from the crank going up through the center breather on the EJ257,so either blank the breather off on the crankcase or fit a return to sump.

Mick

swisstonihasher

Thanks for confirming guys, explains where my oils been going...how do you do a return to sump fitting? I've got a decent size catch can and yesterday spent most of the afternoon on full power mapping, came back to find it was full.

swisstonihasher

Anyone know a cheaper way of doing oil catch back to sump than the AOS kits like grimmspeed? I've already got oil catch that works but would like to feed it back to sump via oil cap...any recommended fittings/mods?

500

Take the sump off and get a boss welded on is the best way, wouldn't have thought you would be able to get the catch can high enough to get the oil in to the oil cap

swisstonihasher

Thanks guys, bit the bullet and gone with a grimmspeed, it replaces the oil cap and dibbles down the pipe to sump, works well from reading forums.

JohnD

iTrader: (5)

As said, how does the oil get from the bottom of the catch tank to the oil filler pipe?
JohnD

swisstonihasher

Ah I have a cunning plan, I'll use the grimmspeed to connect directly with heads and crank outlets (so it takes first shot at oil and hopefully flows most to sump), then the pipe from Grim will head over to oil catch tank - at the end of the day I don't want anything but fresh cold clean air going into turbo, oh apart from fuel tank vapours.

merlin24

iTrader: (1)

+1

Gravity return is the best way.
Picture below is an API return to sump mod.






Mick

millzy555

iTrader: (2)

-10 bango on sump nut here;-)

P1Drifter

iTrader: (7)

same, seems to work well enough on my 2.5

APIDavid

iTrader: (4)

Swiss, did you ever get sorted out with:- was it Flat four online ? or DR motorsport ? can't recall.

David

APIDavid

iTrader: (4)

Doesn't that hang a bit low? It would be too low for my liking. Oil comes out the sump plug real quick when you rip it off..............

David

joz8968

iTrader: (13)

I think I have that on mine - as I had that mod done at API too.

Merlin, are these replacement off the shelf sumps and the customer's old sump put into the 'loop' for modification. Or do API literally add those tubes to the customer's exisitng sump.

Why are there 2 tubes?

APIDavid

iTrader: (4)

The second ones for the dipstick [ no offence meant ]

APi makes every one to order, never of the shelf.

David

joz8968

iTrader: (13)

I fully deserved that (totally 'forgot' about the dipstick ).

merlin24

iTrader: (1)