Ball Bearing Turbo Oil Restricion

[Archer Fabrications]

hey guys, i have been searching around and even asked PTE this question but they contradict what EVERYONE says about BB turbos (PTE is useless), anyway when i got the turbo, it came with an oil restricter on the oil inlet flange, its .030 like its supposed to be. but from my oil feed from the head, it doesnt fit on this -4AN MALE fitting, as the oil line is also a MALE. so i had to take out the restricter ON the turbo, and put the feed directly into the turbo, now, i do have an FP in-line filter with a built in .030 restricter (same size as the pte's). PTE recommended to not use a filter at all (because people don't check them enough) obviously i will be checking quite frequently, and changing my oil frequently. they also said to feed from the OFH for a BALL BEARING TURBO?!?!?WTF all i have heard is to run BB turbos from the head.

Turbo is an PTE SCM6152
my main question is:

if i have my oil filter/re stricter .030 at the head where the banjo fitting is, and have my oil line kind of loop around bottom the turbo before it goes to the turbos oil inlet. is this going to be adequate restriction for the turbo? or is it going to build up oil and slowly seep WAY to much oil into the turbo because the restriction is directly from the head, and has about a foot or so of line before it goes to the turbo. i would guess they had the restriction ON the turbo for a reason? or will i be fine?

 

[turboglenn]

I've ran my PTE from the head, i just check the oil return flow at every major servicingincluding oil changes. Ipull the oil return, start the car and let it idle making sure there is a decent flow (decent for a restricted setup anyway) buti run the stock PTE restrictor at the turbo, but iwould imagine the restrictor being anywhere between the turbo and feed would be fine, Ithink they recomend the OFH because the head is already restricted and low on volume and pressure at the OEM turbo feed spot, so they are probably thinking use a good high volume supply then restrict to assure there's enough oil to restrict from the get go.. I'd say it comes down to how well you know you're setup and engine and how much time and effort you put into verifying everything that you do/install before just going out and driving

You should be OK in my eyes, that's if you're as dilligent and watchfull as i am over my parts and the installation of them both during and after as well as at all service times in the future..as with anything, take care ofit and never assume that everything is ok (always verify even 5k miles later if you're doing anything in that area, what's the extra 10-15 minutes to check the flow/?)

 

[Archer Fabrications]

I've ran my PTE from the head, i just check the oil return flow at every major servicingincluding oil changes. Ipull the oil return, start the car and let it idle making sure there is a decent flow (decent for a restricted setup anyway) buti run the stock PTE restrictor at the turbo, but iwould imagine the restrictor being anywhere between the turbo and feed would be fine, Ithink they recomend the OFH because the head is already restricted and low on volume and pressure at the OEM turbo feed spot, so they are probably thinking use a good high volume supply then restrict to assure there's enough oil to restrict from the get go.. I'd say it comes down to how well you know you're setup and engine and how much time and effort you put into verifying everything that you do/install before just going out and driving

You should be OK in my eyes, that's if you're as dilligent and watchfull as i am over my parts and the installation of them both during and after as well as at all service times in the future..as with anything, take care ofit and never assume that everything is ok (always verify even 5k miles later if you're doing anything in that area, what's the extra 10-15 minutes to check the flow/?)

thanks you gave me confidence, i check everything all the time.

anyone else on the oil restrictor at the head?