McLude2nR

Before my most recent build, my car saw about 400-500 miles. I was running a -4 feed line to my SC-61 and oil pressure gauge was reading 50-60psi at the most, no restrictor. Now on my most recent build I'm reading like 80-90psi on cold starts and 40-50psi at warm idle. Haven't driven the new build because I'm waiting for a tune.

A) How badly do I need a restrictor?

B) Was driving 400-500 miles w/ no restrictor but lower oil psi numbers enough to damage my turbo?

seen4ever

i drove like that for years and thousands of miles without any problems with a -4 line and no restrictor. now I have a GT turbo with a -4 line and the built in restrictor in the turbo and its fine too.

depends on how good your drainline is too, but since I've always had a topmount, i've always had a good drain angle.

don't read into the bandwagon too much.

SOHC_MShue

I tuned a car with a -4an line today and a decent return line. Its turbo was literally spitting oil out of the compressor housing . I'm sure the turbo wasn't in the best shape in the first place though

Dunc

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seen4ever &raquo;</TD></TR><TR><TD CLASS="quote">depends on how good your drainline is too</TD></TR></TABLE>

^^^I forgot to mention this part to you McLude.

McLude2nR

Yeah, see my drain line is **** diesel and drains straight down and into the pan. I guess that's good?

Dunc

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by McLude2nR &raquo;</TD></TR><TR><TD CLASS="quote">Yeah, see my drain line is **** diesel and drains straight down and into the pan. I guess that's good?</TD></TR></TABLE>

**** diesel is no good man, Diesel is out...Methenol is in. Good is: straight down, short/direct as possible is good, no kinks, no part of the line being level or at an upward angle.

TurbodTegSfaria

how big of a drain tube do you guys use?and does it matter on size of the turbo too ?

Topdawgg

curious also, im wondering if i should just run the oil restrictor built into my GT35R, with a -3an feed and a -6an return

McLude2nR

I think i'm running a -10 return, straight down, and short.

Dunc

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurbodTegSfaria &raquo;</TD></TR><TR><TD CLASS="quote">how big of a drain tube do you guys use?and does it matter on size of the turbo too ?</TD></TR></TABLE>

-10 is basically the common size, and is generally considered the minimum. That doesn't mean you need to do a bigger size though.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Topdawgg &raquo;</TD></TR><TR><TD CLASS="quote">curious also, im wondering if i should just run the oil restrictor built into my GT35R, with a -3an feed and a -6an return</TD></TR></TABLE>

You might want to change that out. That -6 return is way too small.

seen4ever

-10 return into my moroso pan. its directly down, at like a perfect 45 to 60 degree angle.

if you are worried about it, just buy an inline restrictor, atp turbo sells prebuilt ones that bolt right into the turbo.

Topdawgg

so -10 return is what i should be doing then, i still havent done anything yet

HamiltonRex

i ran a standard garrett turbo.. t3/t4 non bb, with the oil line kit from fastturbo, the drain is short and sweet, perfect angle too, i used 2 45' pieces, and the feed was whatever lenght size came in kit. no problems here.

wenlyone

personally I didn't have a problem, but I do know someone who ran one and messed up his turbo seal.

Dunc

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Topdawgg &raquo;</TD></TR><TR><TD CLASS="quote">so -10 return is what i should be doing then, i still havent done anything yet</TD></TR></TABLE>

Compared to a -6, yes.

Neukin

14mm+ ID on the return is best

i was wondering about the -3 and -4 feed. Usually we have always used -3 on non bb and now with dbb turbos some were saying -4 with restrictor but i dont see whats wrong with -3 with restrictor.. we havent had any problems.

lmk what you think.

Dunc

A -3 with a restrictor might work for you....it would just restrict the flow a little bit more than a restrictor on -4

93CX

a -4an killed my first xspower 57 trim.. now i run ATPturbo.com restrictor

98B18C1

iTrader: (1)

im havin kind of like the same problem cause it seems like my turbo is being flooded with oil and literally pouring out from the exhaust side...i have a ramhorn manifold and running a -10 return line and the small feed line...wat kind of restrictor would i need?

McLude2nR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93CX &raquo;</TD></TR><TR><TD CLASS="quote">a -4an killed my first xspower 57 trim.. now i run ATPturbo.com restrictor </TD></TR></TABLE>


I just got one in the mail. This one to be exact. Anything special I should know before installing it? Is it pretty straight forward?

http://www.atpturbo.com/Mercha...e=BCS

Neukin

Just goes between the fitting in your turbo and the turbo.... funny they make it like that... they should make it a male on both sides that way you dont have fittings stacking on top of each other. I use that white tape for all fittings even if you dont need too, to keep things leak free. I also use lines from Stan with female on both ends so you could have a different line.

I just talked to Stan at fast-turbo and he is getting the male/male fittings made at their shop soon for a good price.

I think 14-15$ is too much.. here is one.. 13mm or 1/2 wrench will tight it down... this is a -4 fitting for gt35r and like DBB centers

McLude2nR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Neukin &raquo;</TD></TR><TR><TD CLASS="quote">Just goes between the fitting in your turbo and the turbo.... funny they make it like that... they should make it a male on both sides that way you dont have fittings stacking on top of each other. I use that white tape for all fittings even if you dont need too, to keep things leak free. I also use lines from Stan with female on both ends so you could have a different line.

I just talked to Stan at fast-turbo and he is getting the male/male fittings made at their shop soon for a good price.

I think 14-15$ is too much.. here is one.. 13mm or 1/2 wrench will tight it down... this is a -4 fitting for gt35r and like DBB centers

</TD></TR></TABLE>

Oh man, I like that one. My fittings are already stacked tho... The male to male is much better I agree.