On dyno day, my turbo didn't smoke, even though I was worried about it, if anyone recalls.

What did happen though, is a few times throughout the day, it smoked a bit during idle.

As soon as you start bringing up the rev's it quits, and like I said only did this 2-3 times ALL day that I noticed.

Anyway, tonight I had it out..and it started it again..but seemed worse..

Thoughts?

 

did you tap the girdle yet?

and also.. i am buying a .065" restrictor..it wont hurt to run on the -3 line, the s2k's oil pressure is through the roof..

 

I have a -4 line.

The BB has a built in restrictor..so I don't know.

 

-3 oil line is probably a better one to run, even with the restrictor. You do need the drain into the girdle though if you dont already.

Why does everyone always say the S's oil pressure is through the roof? Mine, if my gauge is correct, is roughly 70-75 psi when hot and drops to 60-65 psi when VTEC kicks in and holds there all the way to 9300 rpm.

 

The oil is drained in the pan, I didn't have any issues last yr with the 30r.

 

^^Thats right, I forgot. You may need to either go to the front drivers side of the pan or into the girdle.

 

But why would it matter, if the 30r didn't have any issues, and thios one does?

If it sits and idles long enough, this happens..I wouldn't think that would be the case.

 

I'm not too sure. Maybe the Precisions are a bit more sensitive to oil backup if thats happening. It could be your -4 feed line though and the restrictor being too large. I'm not too sure though. Do you know what size restrictor you have? BB turbo's I believe do best with a .030"-.050" restrictor.

 

GT Turbos have built-in restrictors. The ball bearing design doesn't allow for much oil to pass through, but they have a pretty hefty relief built in for the drain. Garrett T-series ball bearing cartridges (BB 50-trim, 60-trim, T67, etc) are a bit different internally, and they are the ONLY cartridges where I would ever tell someone to run a restrictor.

Journal bearing turbos need a lot more oil. I have never been, and never will suggest to run a restrictor on a journal bearing turbo. If you are having smoking issues with oil back up, increase the size of your drain, or fix the actual reason why 99% of journal bearing turbos smoke- crank case pressure.

 

It's a Precision BB unit..and my drain line is a -10.

If I recall, Fernando from CFT is running a restrictor, I will call them tomorrow.