Precision turbo oil restrictor

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BoBaCk1
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Precision turbo oil restrictor

Post by BoBaCk1 »

I'm about to put on my 6262 journal bearing and wondering if I'm supposed to use an oil restrictor. I see a lot of mixed answers on it. But I figured someone would chime in here on it. Thanks.
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airman
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Post by airman »

For a journal bearing turbo, most people will suggest that a oil restrictor is not needed (especially for a high-end brand name like precision).

I don't run one on my Holset HX35 turbo and have not had any problems. Many others will tell you the same thing.
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Berserker
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Post by Berserker »

I'm on 6262 4an feed line no restrictor, not sure how many miles I put on like 2k? I was wondering about that too, I would suggest call precision and ask...
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sdaigle240
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Post by sdaigle240 »

precision says dont worry about a restrictor on a journal bearing unless pressures regularly pass 90psi. that was WES who said that. he also stripped my turbine blade bolt and sent me back my turbo saying it wasnt worth a rebuild - so greain of salt, might want to call yourself.
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Post by adamky »

I was told that the Precision ball bearing turbos already have an oil restrictor built-in, so it's not needed. Don't know about journal bearing turbos though.
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BoBaCk1
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Post by BoBaCk1 »

Thanks for the replies fellas. I have -4an feed line so I think I'm gonna try no restrictor . If it starts to smoke then I'll throw in my restrictor in. Just so many mixed answers on the interwebz.
Built ka-t
Arias 8:8:1 .20 over
K1 rods
Arp head,main,rod studs
Kelford 272's,dual valve springs
Precision 6262sp .82a/r, peakboost manifold
Cxracing fmic
Fuel injector development 2000cc
Proefi pro128, e85 flex fuel
Rb25 flywheel, dxd 350z clutch
aznsquad
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Post by aznsquad »

2 different reps from Precision said no restrictor is needed. i run a 6262 ball bearing with a -4an line for the past 2 years at 20-25psi no problem.
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supakat
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Post by supakat »

What you need to do is look at your oil psi. If above recommended specs, then run a resistor.
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KYLEBRENAY
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Post by KYLEBRENAY »

I have a 6162 journal bearing and -4an with no restrictor for almost three years now with no issues. However, I do run a screen catcher right before the turbo just in case i get a particle that wants to go through.
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BoBaCk1
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Post by BoBaCk1 »

KYLEBRENAY wrote:I have a 6162 journal bearing and -4an with no restrictor for almost three years now with no issues. However, I do run a screen catcher right before the turbo just in case i get a particle that wants to go through.
Never thought of running a screen. I never did on my Garrett t04e. What kind do you use? I also -4an feed line that's why I ask.
Built ka-t
Arias 8:8:1 .20 over
K1 rods
Arp head,main,rod studs
Kelford 272's,dual valve springs
Precision 6262sp .82a/r, peakboost manifold
Cxracing fmic
Fuel injector development 2000cc
Proefi pro128, e85 flex fuel
Rb25 flywheel, dxd 350z clutch
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Post by KYLEBRENAY »

Its just more of a piece of mind thing. I am not exactly sure what brand it is its just a brass fitting that goes from the -4an line to the turbo center housing and has a little screen built into it.
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ze12o
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Post by ze12o »

earls makes a in line oil filter that -4an. Run no restricter for now. If it smokes then look into a restricter .
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BoBaCk1
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Post by BoBaCk1 »

Thanks for the help fellas.
Built ka-t
Arias 8:8:1 .20 over
K1 rods
Arp head,main,rod studs
Kelford 272's,dual valve springs
Precision 6262sp .82a/r, peakboost manifold
Cxracing fmic
Fuel injector development 2000cc
Proefi pro128, e85 flex fuel
Rb25 flywheel, dxd 350z clutch
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ze12o
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Post by ze12o »

NP, Good luck

BTW
Seeing from your signature your car sounds like a beast!
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BoBaCk1
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Post by BoBaCk1 »

Thanks bro I need to make some changes to it. I just put on a peakboost manifold and a precision 6262 .82 a/r. Can't wait to drive it.
Built ka-t
Arias 8:8:1 .20 over
K1 rods
Arp head,main,rod studs
Kelford 272's,dual valve springs
Precision 6262sp .82a/r, peakboost manifold
Cxracing fmic
Fuel injector development 2000cc
Proefi pro128, e85 flex fuel
Rb25 flywheel, dxd 350z clutch
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