GT40r smoking need your advice.
GT40r smoking need your advice.
Whats up guys I got turbo smoking again. I put in my new GT40r in running
-4an feed
-8an return
No restrictor smokes
.60 restrictor smokes
.35 havent used but thats what killed my journal bearing gt35
Heres the issue driving around the block stop sign to stop sign speed limit oil presure is 80-100psi on the open and big restrictor.
My oil neck has one fitting venting,the other goes in to my catch can that has a open breather on it. The return line is not kinked or bent and it returns to the front cover. Nothing behind it.
Theres only two things I can think of doing what do you suggest.
1-run no restrictor on the -4an feed and upgrade to -10 oil drain line
2-run .35 restrictor with the -4an feed and leave the -8an return line
-4an feed
-8an return
No restrictor smokes
.60 restrictor smokes
.35 havent used but thats what killed my journal bearing gt35
Heres the issue driving around the block stop sign to stop sign speed limit oil presure is 80-100psi on the open and big restrictor.
My oil neck has one fitting venting,the other goes in to my catch can that has a open breather on it. The return line is not kinked or bent and it returns to the front cover. Nothing behind it.
Theres only two things I can think of doing what do you suggest.
1-run no restrictor on the -4an feed and upgrade to -10 oil drain line
2-run .35 restrictor with the -4an feed and leave the -8an return line
is this a real Garrett or a chinese wannabe?
assuming it is a real 40R then the ball bearings do not need nearly as much oil, less than half what a journal bearing requires. i'm not going to specifically say to run the smaller restrictor but that is probably what you will wind up doing to fix it.
what size is your current drain?
3rd option would be to try the -10 return and the .60 restrictor. keep in mind the FD originally had 2 oil dumps, only using one for a single turbo can cause part of the problem if using particular fittings.
if you clamp down oil flow enough then the drain doesn't need to be as large. i cannot say for sure the -10 return will even cure it.
assuming it is a real 40R then the ball bearings do not need nearly as much oil, less than half what a journal bearing requires. i'm not going to specifically say to run the smaller restrictor but that is probably what you will wind up doing to fix it.
what size is your current drain?
3rd option would be to try the -10 return and the .60 restrictor. keep in mind the FD originally had 2 oil dumps, only using one for a single turbo can cause part of the problem if using particular fittings.
if you clamp down oil flow enough then the drain doesn't need to be as large. i cannot say for sure the -10 return will even cure it.
Last edited by RotaryEvolution; Feb 24, 2013 at 06:44 PM.
Run the .035" restrictor and move up to 10an return line
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^It's a Garrett turbo, this happens all the time in my experience. They're extremely sensitive to oil pressure and volume. I don't want to get in trouble posting the solution. Not a vendor... Yet!
Fixed the issue. Since I am running -8an return line the slithest ''U'' bend can cause a big diffrence in flow.
I order new fittings for my upgrade to -10an return, the fittings i had could not be used.
no more smoking good thing i m not pushing the turbo until i tune wich by wednesday it will have the -10an return line
I order new fittings for my upgrade to -10an return, the fittings i had could not be used.
no more smoking good thing i m not pushing the turbo until i tune wich by wednesday it will have the -10an return line
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