Having prob with turbo setup

[darthdingas]

Hey ppl I have just finished a Vr v6 remote mount turbo, I have got every thing sweet the right water flow, oil flow and pressure but still have Blue smoke and small amounts of oil coming from my exhaust, I can remove the turbo in about 30mins so its not that much of a problem to work on if i remove the turbo exhaust is normal no smoke no small amounts of oil. does this mean my turbo seals are gone? If any one has a setup like this (remote mount) what oil pressure do youu feed your turbo and what type of scavenge pump are you using? It is a IHI RHB5 VJ11 stock boost pressure 8.5 also if
any one knows a good place or sites on info on rebuilding turbos

(All photos are in my album couple more to come)
http://forums.justcommodores.com.au/...ums-my-vr.html

[darthdingas]

Any one??!!!?

[AGI78]

mate first thing i would be doing is putting it on its own relay. u may not be gettin the full 12v having the fuel and scavenge pump running off the same wiring, and thus it may not be pumping at its full capacity.

is the turbo just a cheapie journal bearing turbo? if so how small is the restrictor on the fitting on the turbo?

im assuming you would have disconnect the hose that runs from the PCV on the back of the manifold to the throttle body yeh? otherwise you could be pressurising your crank case and blowing oil out that way. otherwise if it is coming through the turbo, the seals must be gone (happened to my ebay t3/t4)

[darthdingas]

The scavenge is running off its own 12v supply from the ignition, tested 12v, I have a needled flow valve before the turbo oil pressure is set a 5-10 psi i wouldnt say its a cheap turbo but it is a journal bearing turbo water cooled. (same spec's as t3 im sure) PCV?? or the IAC valve i dont know what you mean i didnt think that it had one?

[Cheddle]

IHI RHB5 VJ11 is WAY WAY WAY too small for the 3.8... yes it will push 8.5 PSI but it will be working twice as hard to push it compared to the factory engine and would most likely have spat its seals the very frist time it was boosted... lucky it didnt shear the wheel off the shaft :-)

the VJ11 is off a 2.2l MX-6 if i recall, its way too small for the 2.2l 4-banger it came from...

get a WRX turbo OR even better, get a VJ35 - rare as but there off an MX-5 turbo (factory turbo, not many made) they are good for 180 kw atw and should use all your existing manifolds and hoses, i think the dump bolts arnt perfect but it still works

on a slightly related note, there is a good chance the turbo is not draining its oil sufficiently due to the remote setup... this would cause blue-smoke. this will sounds crazy but try un-hooking the turbo drain hose and just letting it leak oil out into a bucket or something and run it just for a little bit so u dont loose too much oil but see if with the drain free-slowing it still blows smoke

[darthdingas]

That turbo can spin up to 100,000rpm and push boost up to 22psi and is rated 175kw i have the pump hooked up the 12v from the ignition and it pumps the hell out of the oil from the turbo i just ordered a rebuild kit should be here some time this week I've been driving the car and pushed it to 10+ psi and it handles it well i'll rebuild it and see how it goes.

[Commotion]

its probably because you return port on the centre housing of the turbo is facing horizontal and not facing down. the oil has to drail by gravity untill it reaches the pump. the way you have it set up, the engine will fill the centre housing up with oil and continue to fill untill its filled the return hose and reaches the pump. this means that the centre housing is full of oil and will definately leak out the seals, you may want to check all your intake and cooler pipework, it will be full of oil as well.
Damien.