S13 redtop sr20det - S15 GT28R ball bearing turbo - OIL RESTRICTOR!?

[Bleakley]

Oh I know! "Here we go again." Well, let's settle this once and for all to all those searching.
(I crawled through 8 threads)
This question applies to an S13 SR. I am upgrading the stock T25 to an S15 dual ball bearing 91F00 GT28R. I am also using DIF stainless steel lines and an S14 water neck.

What size oil restrictor do I use? Do I use one at all?

[e1_griego]

Ball bearing turbo = .03" restrictor.

http://www.frsport.com/DIF-10016-Turbo-Oil-Restrictor--3AN-to-7-16-24---04--Oil-Hole-Size-_p_16397.html

[Bleakley]

Ball bearing turbo = .03" restrictor.

http://www.frsport.com/DIF-10016-Turbo-Oil-Restrictor--3AN-to-7-16-24---04--Oil-Hole-Size-_p_16397.html

That is what I thought too - a 0.032" restrictor. That 0.040" restrictor will be nice. May not have to replace to a bigger restrictor when I go GT30, huh?

[tristan89]

you need a 0.035 restrictor, it is good for gt28/30/35