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Turbo Oil Pressure Regulator

r33_racer

By r33_racer,
in Engines & Forced Induction

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discopotato03 Grand Master

discopotato03

Posted
Posted

I think this issue is going to be one of those things based on what pressure the engine runs . If its higher than std then obviously something has to be done for the turbocharger . As Dirtman said restrictors are a far simpler means of restricting oil flow to the turbo but always remember that restrictors are flow related not pressure .

Anything in the system crud wise will damage engines and turbos so really everything has to be as clean as possible . I'm not really sure about the 0.8mm restrictor getting blocked up , if you had crunchy bits that big in the oil then you've got real problems downstream of the pump and filter (main oil filter) .

An oil strainer in the turbo oil line may not be a bad idea but you want to inspect them often , lack of oil kills turbos real quick .

If you really want to keep an eye on this theres no reason why you couldn't have an electric sender type oil pressure gauge in the oil line and experiment with restrictors . At least with the sensor there you can differentiate between engine oil pressure and turbo oil line pressure .

As a point of interest some businesses are turbocharging Quad bikes and their engines are more bike like than car engines - roller crankshaft bearings .

They survive very happily on "low" oil pressure - something like 10-15 psi but don't quote me .

Bush bearing turbos like a bit more than that so turbo'd bike engines seem to do better with ball bearing turbos because that bearing system doesn't need the extra flow and pressure that bush bearing turbos and slipper crank bearing engines do .

One thing I do know is that excess oil flow in ball bearing turbos adds extra drag for the balls so its something to avoid if you want good turbine response .

A .

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
Wouldn't an in-line filter (aka XR6 turbo) cure blockage worries with running small or multiple restrictors? The filter itself may knock a few psi off the pressure too?

Actually I'm sure hypergear supply in-line filters. http://www.nissansilvia.com/forums/index.p...howtopic=391141 or http://www.cimotorsports.net/motor-sport-p...oil-filter.html

yes i forgot to add that i also recommend using (and do use myself) a Peterson filter in the oil feed line to the turbo. It saves your turbo if your engine happens to chew on some bearings.

juggernaut1 Proficient

juggernaut1

Posted
Posted (edited)

What micron filter size are people using in the Peterson in line filters - I note there are a few sizes? Also which is better...with or without the bypass?

Edited by juggernaut1
Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted (edited)
What micron filter size are people using in the Peterson in line filters - I note there are a few sizes? Also which is better...with or without the bypass?

you use the -4 valve train spraybar filter 1/2 way down this page. Peterson part number 09-0730 its 60 micron.

http://www.petersonfluidsys.com/filter_oil.html

Edited by DiRTgarage
toy515 Grand Master

toy515

Posted
Posted

lucking i didnt go and buy my oil lines today for my new turbos, i never thought about this.

ive got 2 x greddy td05 18g oil cooled only and ive got to get new lines made up what restricters should i run if any? and where do i get them from

also got standard oil pump

cheers

tridentt150v Grand Master

tridentt150v

Posted
Posted
you use the -4 valve train spraybar filter 1/2 way down this page. Peterson part number 09-0730 its 60 micron.

http://www.petersonfluidsys.com/filter_oil.html

This protects the turbo from particles, but not starvation - assuming you are running with two restrictors and have one in at the block as well.

So really you need a restrictor after the peterson, and then another one at the turbo, rather than one at the block and another at the turbo??? That way all muck gets filtered before any restriction and also before the turbo.....

Am I right in my thinking? And would that be a better set up?

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted

:/

Dirt suggested a 2mm restrictor at the block....if you've got particles in your oil that are around 2mm I think you've got bigger issues and the placement of the restrictor will be academic.
STATUS Grand Master

STATUS

Posted
Posted
lucking i didnt go and buy my oil lines today for my new turbos, i never thought about this.

ive got 2 x greddy td05 18g oil cooled only and ive got to get new lines made up what restricters should i run if any? and where do i get them from

also got standard oil pump

cheers

They are not as fragile as the roller bearing units, i would not waste my money. Run normal line without restrictors for the TD series.

tridentt150v Grand Master

tridentt150v

Posted
Posted
Dirt suggested a 2mm restrictor at the block....if you've got particles in your oil that are around 2mm I think you've got bigger issues and the placement of the restrictor will be academic.

But he also said engine failure, so your still starving the turbo, anyway, I'm in an industry where tiny particles jam together just like the thee stooges all trying to get out the door at the same time - irrespective, my question and the logic behind it still stands, why put a restrictor before your inline filter?

juggernaut1 Proficient

juggernaut1

Posted
Posted
I'm in an industry where tiny particles jam together......

So your in the vacuum cleaner industry? :(

irrespective, my question and the logic behind it still stands, why put a restrictor before your inline filter?

Your logic is sound - put the restrictor after the filter.

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