oil restrictor help!(gt2871r)

[turbos12]

ok so i just did a quick serch and didnt come up with any info... i just got done intalling my gt2871r and my car started to blow a little blue smokedo i need to add an oil restrictor? if so can i put it into the 90degree fitting coming off the block or do i take the fitting out of the block and put the restrictor into the block?..someone plese tell me asap so i can go get a restrictor tomarrow and have an ss line made.thanks in advanced.

[bentvalves]

the restrictor gets placed ontop of the turbo normally, if you can have one made to suite the elbow than do that however.

http://www.dm-spec.com/tababeoilret.html

they can be had for half the price elsewhere online.

it is going to be very difficult to install that with the turbo in the car I thinks...

also, I think the 90* fitting piece is BSF thread into the block...dont quote me bring it to the hose shop.

[MeanGreenS13]

om my SC61, i have a -4 AN fitting for the oil feed line to connect to. I hacked it off right above the threads and put a .42 nitrous jet in there. Been doing this on many other cars too, had 0 problems what so ever.you can call it ghetto if you want, but if it works dont knock it i say haha

[Nicksemianiw]

usually the restrictor is built into the lines, and it is in the fitting that goes into the oil feed of the turbo.

[D_Stirls]

Garrett BB turbos have the restrictors built into the core/CHRA. HKS turbo's on the other hand (even though they use the same cores) need a restrictor added. I have a GT2871R and haven't moded/added a restrictor and it has never blown any smoke or used and oil. Get a torch and look in the oil inlet and you will see it in there, I had a picture but lost it when i formatted my computer.

[bentvalves]

I had a friend running a 2871 without a restrictor for 2 years strong, no smoke issues as well.

they are required to have one fitted however, just go on garrets website and have a look at the specs for GT series turbos.

the turbo will live a shorter life as a result of having more pressure pounded through it constantly. A garret gt series turbo only needs 20-30 psi to lubricate it effectivley, not 80+ psi at redline.

[SeVeN]

i run the 2871r for allmost 2 years without any restrictors .. and the turbo still runs fine ...

[bentvalves]

u guys awe cwazzyyy

[turbos12]

so i went and put in a restrictor but its still blowing some white smoke..im hoping its some extra oil in my exhaust burning out

[MeanGreenS13]

white smoke? thats not turbo related buddy... that sounds like maybe a head gasket issue... white smoke is water or coolant... does it have a sweet smell to it?

[Logan76]

Meangreen, your running a .42 restrictor on your SC61? I thought for T3/T4 non-ball bearing turbos you are supposed to run a .65 restrictor? Maybe im wrong, meh.

[D_Stirls]

I had a friend running a 2871 without a restrictor for 2 years strong, no smoke issues as well.

they are required to have one fitted however, just go on garrets website and have a look at the specs for GT series turbos.

the turbo will live a shorter life as a result of having more pressure pounded through it constantly. A garret gt series turbo only needs 20-30 psi to lubricate it effectivley, not 80+ psi at redline.

I 100% guarantee you that there is a restrictor in the Core from the factory. Like i said if you have a BB and have a look in the inlet you can see it.

Where on the GT spec's page do you see that the require an after market restrictor???http://www.turbobygarrett.com/....html

white smoke? thats not turbo related buddy... that sounds like maybe a head gasket issue... white smoke is water or coolant... does it have a sweet smell to it?

White smoke is oil smoke but condensation is water they look the same but of course the smoke lasts.

I have a feeling that this might be a case of Valve stem seals leaking not the turbo itself. If the smoke is more on idle and in vacuum conditions then that is the case.

--------------------------------------------------------------------------------------------------EDIT!! Here is the Actual Info about the Oil Restrictors From the Garrett Page.So to summarises what is below if you haven't modified your oils system and the oil pressure is within the factory specs (i.e. 51-60psi) then the standard Garrett restrictor is all that is required.

Oil & Water Plumbing

The intake and exhaust plumbing often receives the focus leaving the oil and water plumbing neglected.

Garrett ball bearing turbochargers require less oil than journal bearing turbos. Therefore an oil inlet restrictor is recommended if you have oil pressure over about 60 psi. The oil outlet should be plumbed to the oil pan above the oil level (for wet sump systems). Since the oil drain is gravity fed, it is important that the oil outlet points downward, and that the drain tube does not become horizontal or go “uphill” at any point.

Following a hot shutdown of a turbocharger, heat soak begins. This means that the heat in the head, exhaust manifold, and turbine housing finds it way to the turbo’s center housing, raising its temperature. These extreme temperatures in the center housing can result in oil coking.Ref': http://www.turbobygarrett.com/...101_3

And here is the section out for the manual regarding the Oil system Spec's

Modified by D_Stirls at 5:18 PM 3/9/2009
Modified by D_Stirls at 5:20 PM 3/9/2009

[turbos12]

its def. oil smoke not coolant...i have a feeling its the valve seals also

[bentvalves]

but at redline or above 3k rpms our engines produce more than 60psi oil pressure.

[MeanGreenS13]

uhhh i dont know who schooled you, but altho i have not seen his car so i cannot smell it myself

White = CoolantBlueish = OilBlack/Grey = Fuel

thats what ive always known

[MeanGreenS13]

Meangreen, your running a .42 restrictor on your SC61? I thought for T3/T4 non-ball bearing turbos you are supposed to run a .65 restrictor? Maybe im wrong, meh.

dunno, never had an issue with this. Turbos dont whine and they dont seem to wear too quickly

[Joni_S13]

Sorry for digging this thread up, but there's no point on starting a new one just for a simple question.
Does it make any difference if the oil restrictor is placed either on the block or directly to the turbo?

Thanks

[float_6969]

It shouldn't. I put mine in the block and it was fine.

[Joni_S13]

Thanks Float!