monitoring oil pressure at the turbo....

[99gst_racer]

I have had problems in the past of having too high of oil pressure at the turbo. It blew oil past my Mitsu turbo's inner o-ring, causing a smoke screen behind me. I dont want that to happen again; especiallyt now that I am getting ready to install my new T04b. I wanted to install an inline fuel pressure gauge near the turbo, to make sure I dont exceed 55 PSI. Would it only be benificial to monitor it near the turbo on cold starts or at WOT?? Would an under-the-hood gauge be benificial, or do I need an in-cabin gauge??

If my pressure is too high, then how do I restrict it?

Any input the the gauge idea would be great. Thanks in advance.

 

[JrCRXHF]

i would just run the stock lines and with the 16g turbo or 14b should be ok.

on my honda's t3/t4e and a GT 12 turbo i just a 1/16 of a inch hole which is like .06

which i have never had a problem with.

 

[99gst_racer]

are u running the oil pressure source from the head or from the oil filter housing... the oil filter housing is gonna be more. i would use the stock location.

I am running it from the filter housing because the oil is cleaner and higher pressure (i just dont want to go too high). The head oil pressure can be too low sometimes and the oil is dirtier. The stock location on the 2G's is the oil filter housing.

It's not a question of where to get the oil from. The oil pressure may be too high due to the size of the line and/or fittings I'm using..... That's why I want to gauge it, so I could experiment w/ different sizes of lines, fittings, and reducers until I get the pressure where I want it....

 

[coltboostin]

I set up may oil sending unit to be at the feed for my T4, because I had some serious oiling issues last season. I'll try to get pics.

 

[Omega]

Most venders recommend that the oil be taken from the housing. In fact some of them spec this, and if you don't, the warrenty is void. My 16G was housing fed, and now my G50 is too.

How do you know that you have had oil pressure issues in the past? It's normal for a turbo to eventually fail, are you sure that high oil pressure specificly killed the turbo? If the oil pressure in the engine is generally higher than what it should be then I would look into that before restricting oil flow to the turbo.

I would run an SS line from the housing with a "T" to mount a pressure gauge to. I am sure that earl's or someone similar has fittings that enable you restrict fluid flow.

 

[SpoOLxExO]

are u running the oil pressure source from the head or from the oil filter housing...

the oil filter housing is gonna be more.


i would use the stock location.

how about u just call up the people u bought the turbo from and ask them what to do.

He's getting a T04b, the vendor doesnt care about issues like this. All they care about are selling turbos to people that they don't need.

Besides, if you can't figure out how to search "Oil line restrictor orifice" how do you expect to run that t04b well?

BTW, ran into this. Looks like your problems aren't with the oil line on that To4b...
http://www.dsmtuners.com/forums/showthread.php?t=158227&page=1&pp=25

You guys amaze me every day...

Heres your fitting there buddy...

 

[99gst_racer]

Most venders recommend that the oil be taken from the housing. In fact some of them spec this, and if you don't, the warrenty is void. My 16G was housing fed, and now my G50 is too.

How do you know that you have had oil pressure issues in the past? It's normal for a turbo to eventually fail, are you sure that high oil pressure specificly killed the turbo? If the oil pressure in the engine is generally higher than what it should be then I would look into that before restricting oil flow to the turbo.

I would run an SS line from the housing with a "T" to mount a pressure gauge to. I am sure that earl's or someone similar has fittings that enable you restrict fluid flow.

I now I was running too high of oil pressure in the past on my 14b's. I only had about 70 miles on each turbo, when I'd start getting a smoke screen behind me everytime I built boost. I disassembled one of them and found that oil was leaking/spraying profusley (sp?) past the inner o-ring. The o-ring itself was in great shape. It was not dried out or cracked. The entire CHRA was in good shape. Little to no coking. After this happening to 2 different turbos within one month, I decided it was because of the oil pressure. I started aking around and reading old posts and it seems that it is somewhat common w/ Mitsu turbos. I just didnt want the same thing to happen to my new Garrett turbo, so I figured I'd monitor the pressure.


coltboostin - Yeah, if you could post some pics, that would be great.

 

[99gst_racer]

He's getting a T04b, the vendor doesnt care about issues like this. All they care about are selling turbos to people that they don't need.

Actually, for your information, it was the vendor's idea and recomendation to use the gauge and possibly restrict the pressure if it is too high. Are you morons multiplying? Please dont comment unless you know something from experience.

Besides, if you can't figure out how to search "Oil line restrictor orifice" how do you expect to run that t04b well?

It is currently restricted. I just dont know if it is enough. Hence this post about the gauge to see if I'm currently restricting enough....

BTW, ran into this. Looks like your problems aren't with the oil line on that To4b...
http://www.dsmtuners.com/forums/showthread.php?t=158227&page=1&pp=25

I dont have any problems with the turbo. You sent me a link to a bunch of immature vendors pissing and moaning at each other.... That has nothing to do with my oil pressure......

Heres your fitting there buddy...

And so you send me a link to goodridge lines (which I allready have) and GT turbo reducers..... Are you on drugs or are you just normally this way?

 

[SpoOLxExO]

Yeah, I'm on drugs!!!

I sent you a link on the restrictor at the bottom, I guess you didnt go that far down the page...

Besides, I was refering to the fact you have a t04b.

Even if you got it running, 16g cars will still be walking over you!

287hp!?

And by the way mitsu turbos don't have a problems with blowing bearings. Your motor is making the high pressure. I guess since you took that piece of information as fact, you decided to buy a non-mitsu turbo in hopes you would stop blowing seals?

Sounds like you have more problems then resricting oil pressure, but what do I know?

I'm just a "Moron" with an 11 second GVR4!

 

[99gst_racer]

Look, I appoligize for coming on strong. I just get pissed when someone comments outside the question....... I dont want this to turn into another locked thread.

I sent you a link on the restrictor at the bottom, I guess you didnt go that far down the page...

I did see the restrictor at the bottom. I just didnt think that was for my turbo because it said "SBR Restrictor Fitting For GT Turbos".....

Besides, I was refering to the fact you have a t04b.
Even if you got it running, 16g cars will still be walking over you!

We'll see. I have faith in this Garrett. I've never been a huge fan of the 16g's. I know they are a proven performer, but I never wanted one......

287hp!?

Where do you get that number???
Go to the website. V-trim made 401WHP @ 20 PSI on pump/race mix with basic mods and cams.....

And by the way mitsu turbos don't have a problems with blowing bearings.

I have heard from many people and a few vendors, that some of the Mitsu's inner o-rings cant handle the high pressure coming from the filter housing.... I never believed it until it happened to me, twice.

you decided to buy a non-mitsu turbo in hopes you would stop blowing seals?

I bought this turbo because I liked it more than any of the available Mitsu turbos.....

Sounds like you have more problems then resricting oil pressure, but what do I know?

Nope, thats the only problem I have....

I'm just a "Moron" with an 11 second GVR4!

Well it looks like we both agree on something. J/J. I dont want this to be a pissing match. I am lookin for help, not an argument. Please respect that.

 

[SpoOLxExO]

Hey no worries!

I was refering to the Slowboy page because you can get the restrictor for any Garrett CHRA, I'm sure Nate or Cragger will help you out just fine!

I personally hate when a turbo supplier tries to come out with something new, and rip people off cause they suck. I was one of those suckers, so I'm trying to look out for people.

Be easy, and good luck with your setup!

 

[99gst_racer]

Hey no worries!

I was refering to the Slowboy page because you can get the restrictor for any Garrett CHRA, I'm sure Nate or Cragger will help you out just fine!

Yeah, those guys aover at SBR at great to buy from. So, are you sure that fitting at the bottom of the page wont restrict oil too much. Are you sure it will supply the CHRA w/ enough??

I personally hate when a turbo supplier tries to come out with something new, and rip people off cause they suck. I was one of those suckers, so I'm trying to look out for people.

I know what you mean. I remember when the everyone was buying the mutts. Theoretically, they would be bad-ass, but they just didnt hold up. These Bullseye turbos are different. They are not Mutts. They are just a Garrett, (which I know is old school technology) w/ a bullseye turbine housing. Their turbine housings are very nice w/o a doubt. And the Garrett turbos arent the best, but they also arent the worst. At least I can say I trust it's reliability. I have a FWD street car, so I dont really want anything too powerful or expensive.

Be easy, and good luck with your setup!

Thanks.

 

[BoostinAWD]

Factory fed the turbos from the head for a reason. Turbo bearings don't see a lot load, its just a spinning shaft. Hell 10psi is more than enough. Most new procharger superchargers dont even have an oil feed line they are designed to be filled with oil and thats that.

If your worried about oil being dirty or what not install an oil filter before the turbo. Thats what I am doing on my GT-12 which I feed from the head.

Just a thought

 

[99gst_racer]

Factory fed the turbos from the head for a reason.

Ahh, but only on 1G's were they fed from the head. 2G's came fed from the oil filter housing from the factory.... On my setup, I simply replaced the hard line with a flexible Goodridge line. Everything else is like it was from the factory...