2002 Camaro SS AC Retaining Turbo Build
I also got the oil feed fitting installed in the galley cap. Also a piece of cake, simply drill out the bottom of the hole and tap. The hole in the cap is already the perfect size for the 3/8 NPT tap and goes really easy despite being aluminum. I'll bolt up the hotside for the last time and fab oil lines next time.
Last edited by Black_Sunshine_99; Dec 17, 2014 at 03:04 PM.
You might need to use a reducer on the feed side, not sure if you have one already in place. I have the same turbo (Turbonetics 7675) and even with their filter/reducer in there and a 5/8 drain hose I would slowly start getting smoke out on long WOT runs. I know they say not to use one unless you exceed 80 psi but I can say with 90% certainty I was, hard to watch a gauge when you are moving that fast.

Lots on here running them also on the cars and the BB doesn't seem to need a whole lot to keep happy. Ran it hard for 4 months during the summer and no issues. Checked for any play in it after I put the car away and turbine is as solid as it was the day I got it.
How is the routing for your power steering? I remember mine were closer then I had liked so I ended up getting new ones made.
The drain line actually makes the bend around the hotside and goes straight back along the side of the engine to the drain thank god. I'm in the air about the restrictor though. I almost feel like I'd rather have a little smoke than burn up a turbo? At temp I've only ever seen around 60psi oil pressure w/ 5W-30 Ams Oil but if you think it'd still be a good idea I'll definetly reconsider. How bad of a droop are we talking? Causing oil drain issues bad? I'm not really happy with the P/S lines but I can't afford to have ones made so I carefully bent them around and out of the way. By shortening a few hoses and bending hard lines I got them to follow the edge of the block and next to the relocated belt tensioner. They're plenty far away from the hotside which is good. I will get custom ones made in the future for a cleaner look but I think for now they'll work.
Thank you for the input and feedback too brother! This is my first FI build so I'm very open to advice from the guy's who've been there already!
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As long as there is a slight slope the whole way with the drain line you should be fine. Is hard to gauge from the pictures but looks like it has a good drop in it.
Can see what happens with the oil drain and smoke. Ball bearing doesn't take much to keep it lubed from everything I read. Seemed the general consensus from what I read was many of thrown them on with a ball bearing turbo and never had any downsides with the reducer.
If it were a journal I would tend to want more oil.
Any questions let me know. I have pretty much the same thing on my car and love it.
Is that the fitting that came with the turbo with the little filter on the other side?
Last edited by Black_Sunshine_99; Dec 20, 2014 at 11:21 AM.
My dad works with Hydraulics and he mentioned unless it is some special type of bearing setup he doesn't see why it would need as much oil as it was getting from the 1/8 fitting. His best guess was just because the journal bearing is used in the same housing with the same fitting so they just went that route.
I was probably in the same boat as you, first turbo and don't want to ruin it, but went with Turbonetics because I knew if I ruined it somehow, they would most likely warranty it and I wouldn't be out $1500+ to start over again.

Like mentioned, the very least you could do is at least have the fitting on hand in case you have issues. It only takes about 2 minutes to throw the fitting in once it's all together.
Like I said I would just order one now and keep it on hand and can try it without. If you get the smoke throw in the largest orifice reducer you got and run with it. Shouldn't have to screw around with dropping it down any further really. I haven't had issues going from a stand still to ~140 WOT.







