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Bad Turbo Cuasing Low oil pressure

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Old 12-07-2008, 09:36 PM
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Default Bad Turbo Cuasing Low oil pressure

With the FeedLine Caped. I get Normal oil pressure ~70 cold

With feedline Connected to Turbo I see 35 Cold

Has anyone seen this happen?

This is a Turbonetics Ceramic BB t3/t4B
Old 12-08-2008, 05:37 AM
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try a restrictor
Old 12-08-2008, 05:51 AM
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Originally Posted by Running925
try a restrictor
yup, ball bearing turbos need it.
Old 12-08-2008, 05:53 AM
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Originally Posted by Running925
try a restrictor
x2.
I have a Turbonetics ceramic bb T3/T04B and my oil pressure is fine without a restrictor, but it's on a VW motor
Old 12-08-2008, 07:13 AM
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where are you taking the reading from? if the sensor is inline with the feed line you could see decreased pressure from the turbo. the turbo essentially pulls pressure away from the sensor. doesnt necessarily mean the rest of the motor has low pressure though
Old 12-08-2008, 07:42 AM
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I thought it was just the Garrett/Precision Turbo's that needed a restrictor, didnt know Turbonetics required it too.......

I run my feed from the same spot that my oil pressure gauge is, and I see no difference with the line flowing or capped, running a -3 line and .035" restrictor.

Last edited by 96 GSR-T; 12-09-2008 at 08:22 AM.
Old 12-08-2008, 10:19 AM
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Retrictor did not help

Retrictor-low oil pressure
Oil Feed in bottle=Low oil pressure
Caped off-65-70 off the bat
Old 12-08-2008, 04:48 PM
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Turbo GT ball bering got already intern restrictor

EDIT I HAVE TAKE THE TIME TO TAKE A PICTURE OF MY TURBO


Last edited by Dark19Acura; 12-08-2008 at 05:01 PM.
Old 12-09-2008, 06:33 AM
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Originally Posted by dpetro1
where are you taking the reading from? if the sensor is inline with the feed line you could see decreased pressure from the turbo. the turbo essentially pulls pressure away from the sensor. doesnt necessarily mean the rest of the motor has low pressure though
^^^^^^^^^^^^^ its not your turbo.. jesus christ
Old 12-09-2008, 08:21 AM
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Originally Posted by Dark19Acura
Turbo GT ball bering got already intern restrictor

EDIT I HAVE TAKE THE TIME TO TAKE A PICTURE OF MY TURBO

we are all aware of the factory GT built-in Restrictor, however it is pretty widely known that you should run an additional .035" restrictor because the GT's dont like alot of oil pressure.
Old 12-09-2008, 08:25 AM
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Not about the OP's issue, but about restrictors........

https://honda-tech.com/forums/showth...&highlight=035

https://honda-tech.com/forums/showth...&highlight=035
Old 12-09-2008, 03:27 PM
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ok i will try the .035 restrictor maybe i will have less blue smooke behind my car
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