I have a journal bearing Precision T4 PT67 on my 93. I put -4 an inlets and -10 out just wanted some input.

 

I'm running 4an inlet, 10an outlet.

 

Same

 

main reason I ask is after 2 days of driving it the turbo started leaking oil in to the exhaust. Im sending it to Precision to get it checked out I just don't want to be back in the same boat when I get it back.

 

do you need to run an oil restrictor with that turbo?

 

I thought bigger was better! lol, yea.....might want to check this out before buy the feed line...

 

Check this out-maybe this will help out...

https://www.rx7club.com/showthread.p...+oil+feed+line

 

Journal bearing turbos need all the oil pressure they can get. Use a restrictor for ball bearing turbos...

 

I use a 4an for a journal bearing turbo and a 3an for a ball bearing turbo. Most important is to get the restrictor/fitting size correct. For a journal bearing turbo a 1/8" fitting is perfectly fine. For a ball bearing garret you're looking for a .030" restrictor.