turbo question

[95talonracer]

Why does it need a restrictor? Where are you getting oil pressure from and also is it ball bearing or journal? If it is getting oil pressure from the stock turbo oil feed location and is a journal bearing turbo then it should not need a restrictor if the turbo was correctly rebuilt.

[95talonracer]

4seasons69 just send it in to Precision and have it done right and correct the first time. They are great guys and are willing to explain things and work with you there.

[4seasons69]

i sent you a pm. do you have a restrictor on it? if not its just gonna blow massive oil pressure against the exhaust seal ring and dump it out the exhaust.


give me a call and i can take it apart and give it a once over for ya for free. if you need a restrictor i have one here...

Why does it need a restrictor? Where are you getting oil pressure from and also is it ball bearing or journal? If it is getting oil pressure from the stock turbo oil feed location and is a journal bearing turbo then it should not need a restrictor if the turbo was correctly rebuilt.

4seasons69 just send it in to Precision and have it done right and correct the first time. They are great guys and are willing to explain things and work with you there.

I'm getting the oil from the oil filter housing but it's a journal bearing turbo so it shouldn't need a restrictor. my last turbo was a journal bearing turbo and I ran the oil feed the same way and it didn't burn a lick of oil.

Thanks for the offer but I'm either going to send it to precision or bring it to diesel components in burnsville

[goodhart]

It also depends on if you have your balance shaft removed or not also. If you do, you are making way more oil pressure at the OFH than stock. It also depends on what you are using for a feed line, if it's something like a -4, then you're most likely getting too much oil pressure to the turbo and need a restrictor. I don't even know where the stock feed location is on these cars, mine came with a -3 (I think, it's the same size as a nitrous line) from the oil filter housing, it's the one from slowboy that's like a mile long. I say this because I am debating what to do with my car so the same thing doesn't happen to me.

[sleepydsm]

Are you balance shafts eliminated? I see up towards 120psi of oil pressure when cold. I use an FP journal bearing restrictor/filter from the OFH for my Journal bearing Holset HX40. I have had no issues.

[blackrosenova400]

I just went through all of this.....

If its a T3 center section then run between a .09 to a .110 restrictor. Without it, with the feed at the oil filter housing, regardless if you have balance shafts or not, is flowing way too much to the turbo and you are flooding it.

I messaged a bunch of Garrett representatives and the guys that made the most sense said to run a .09 to a .110 restrictor. Bear in mind though that this is with me telling them my oil pressure source is between 20 psi and 80 psi. May change a bit in your situation.



I'm getting the oil from the oil filter housing but it's a journal bearing turbo so it shouldn't need a restrictor. my last turbo was a journal bearing turbo and I ran the oil feed the same way and it didn't burn a lick of oil.

Thanks for the offer but I'm either going to send it to precision or bring it to diesel components in burnsville

[4seasons69]

I haven't removed my balance shafts yet so that shouldn't be the problem.

I've always been told that on journal bearing turbos you don't need a restrictor. 95talonracer said he talked to pte and they said that with their journal bearing turbos you don't need to run a restrictor. and on my old bullseye vtrim that didn't burn a lick of oil running the same oil feed

plus there is a bunch of shaft play. which shouldn't be there on a freshly rebuilt turbo with only 120 miles on it

oh and for the whole oil pressure issue the last time I checked it I only had like 14psi at idle so i'm on the low side

[blackrosenova400]

Well you probably do need a restrictor. How big of an oil drain do you have. Im running a 12 AN drain and i still think im cutting it close.

[4seasons69]

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[4seasons69]

[quote=blackrosenova400;308094]Well you probably do need a restrictor. How big of an oil drain do you have. Im running a 12 AN drain and i still think im cutting it close.[/quot

it's a 10an return line if I remember correctly. like I said my bullseye was fine on this oil feed and return setup. and I've only heard about having to run restrictors with bb turbos or if you've had your balance shafts removed.

given the amount of shaft play it already has I highly doubt a restrictor would do anything at this point