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[Alloytec] Turbo'd VE V6 Oil drainage issue. Turbo experts please help!

mrscholz

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Just finished turbo-ing and tuning a '07 VE V6 Omega. The Turbo is a water cooled GT35R Journal bearing type. I have one problem that is doing my head in... the oil drain from the turbo. Because it is a low-mount, I have got a VDO scavenge pump running off the drain line back to the rocker cover. The pump runs off a turbo timer to continue after the ignition is switched off, I have a one way check valve on the oil inlet side coming from the pressure sender under the oil filter, and a 1mm restrictor. The drain line and the VDO pump both sit below the center of the turbo, and are connected by a 90 degree elbow from the drain port on the turbo. THE PROBLEM... I'm still getting oil being pushed past the bearings. Do I need a vented sump? A better pump? Should I need the restrictor? Do I need a one way valve leaving the turbo as well? Any help would be awesome. Thanks in advance.
 

delcowizzid

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does it run a real small air filter if so it can make the compressor housing fill with oil from the vacuam created happens a lot
 

mrscholz

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I have got a drift pod filter on it.... Its not the biggest of pods might try and find one with a bigger flow?
 

v6 morrie minor

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Pod filter should be fine and yes you need a restrictor, i had trouble with mine until i put a 1.3mm restrictor and mine is a front high mount with drain straight to sump. The dino tune guys told me that it comes out of the turbo like foam so i dont know how your pump will go sucking foam until it reforms itself into oil again. Maybe you should do a search for low mount skyline and see how the ricers do it.
 

delcowizzid

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journal bearing turbo wont last long with a restrictor they require full flow
 

v6 morrie minor

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Hey mate sorry for the bad info on the restrictor, I have been talking to delcowizard and he knows his stuff. i hadn't blocked the pcv valve so have now opened my oil out to see how it goes.Looks like his goes real good from the vids he posted. GOOOOD skids
 

rubaduckee

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Due to space I only run a fat but narrow air filter and having some issues, mine is high mount drain straight to the sump
 

delcowizzid

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short ones like this cause issues very easy

by rights you really need a 12" long k&n if making resonable power.we are starting to get slight film of oil at 14psi with a normal standard size pod filter its just not got enough surface area its even sucked the material out of the mesh its struggling for air LOL
 

rubaduckee

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That's what mine looks like lol
So not only affecting my power output but also causing it to smoke, just gotta see if I can do something else, maybe run a flexible hose to front of bar and put a bigger filter on it?
 
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