Thread: Turbo oil feed and drain tech. Do I need a restrictor or not?

this is your answer to why you can run multiple restrictors.

atpturbo does take paypal and i PM'd u back

yes they do! getting it overnight!

unijabnx2000..thank for the help man. cortrim1, always a pleasure!

haha, they shipped it an hour after i bought it! nioce!

What are you trying to say? I think I was very clear in my earlier posts. Are you trying to debate the facts I posted? What was your oil pressure when you tested it with two different sized restrictors?

he is saying you are correct! i was un easy about running 2 restrictors but the fact that you said only the smaller restrictors takes place in restriction out of the 2 answered my question to the T! now i have atp sending me a fitting....

:o :o Oh sorry I am retarded I totally read that the wrong way.

I'm bumping a "kinda old" thread. I have a problem with not being able to keep my journal bearing turbo healthy.

I'll start at the begining. I got a w12 avenir motor shipped to me and installed it. This is my second DET motor my 1st was a bluebird motor. It came with a garrett BBt25 turbo that I didn't use right off the bat. I bought a t3/t04b vtrim turbo and installed it with a ss -4an line and custom steel inline .065 restrictor. the turbo lasted about 3 weeks. I took it back to turbo auto and he said he put a new center section and bearings and a good turbine/shaft on it. He said it showed so many problems he couldn't figure out exactly why it failed. But the top 2 was not enough oil and some how trash gouged the bearings. He said open the restrictor to .100 and see if that helps. I did all that and the next day the turbo showed extreme shaft play again. I took it back and he says that this time it only shows lack of oil and that the bearing even seized onto the shaft at one point in time. He put new bearings on it, but said the backing plate was showing wear so next time I'll need a complete rebuild. So I go home and install it once more except this time I use half the stock t25 banjo line and the port on the front of the block. I didn't use any restrictor and used 6 inces of SS line for the t3 oil inlet. The next day the same excessive shaft play showed up. And the same results were shown on the turbine shaft.

Now a little detail before I go any futher. I'm not a noob at turbos but i'm no guru. I always check for flo to the turbo and drainage from the turbo during install. It wouldn't take very long at all to fill a coke bottle full of oil, basically start the car walk to front to check then run back to driver seat to turn off car. Drainage also is present. I'd say at 30 seconds it will over fill the 20oz coke bottle. I'm using rotella full synthetic oil 5w-40.

After the last failure I said eff this turbo and installed the bbt25 after turbo auto looked at it and said it should be fine to run as is. (slight shaft play) During install using the stock lines i T'd in a mechanical oil guage. I see the same oil pressure at idle 20lbs and 60psi at 4200 launch rev limit. The in car electric oil guage reads the same. I dunno about high idle at the mech guage but I hit about 80 psi at 5500rpm. The ball bearing turbo has been holding up for 3 weeks now. Turbo Auto has totally rebuilt the t3/t4 using a desiel center section that he claims has bigger oil ports. It has a new turbine and backing plate. All the internals are new. I told him about the oil psi and he wonders if psi is good then what about enough volume. Does anyone have any insite on this. I'm a little scared to put the t3t4 back on but i miss the power.

Maybe you have oil blockages, rtv or metal shards somewhere in the line.

Do you have any metal scraps in your oil pan, magnetic drain plug maybe?