uh oh... blue smoke.

So I just got done running my 2010 pretty hard, parked my car, got out and noticed the same thing.. tons of blueish smoke. I got worried, killed the ignition and checked oil level. Level was perfect. Started her back up, no smoke. Drove her back to the hotel, parked it, still no smoke. Now I'm paranoid.
 
That stinks.  Could you have gotten it hot enough to burn more crap out of the exhaust? 
 
Doubt it.. I've put probably 7000 miles and 2 track days on the car since installing my downpipes and catback.. If there was anything in there, it's been gone for a while
 
my smoking issue started as soon as I went catless.
Like the others pointed out we most likely have turbos with weak seals and without back pressure they're letting some oil blow by.
 
PopolZ said:
my smoking issue started as soon as I went catless.
Like the others pointed out we most likely have turbos with weak seals and without back pressure they're letting some oil blow by.

Seems a little odd, but from my scouring the forums, I have seen/heard of a few stories and the loss of the cats seems to be a common denominator...I wouldn't think that a turbo NEEDS backpressure to seal, but I might run that by a couple turbo builders.  I'll report back what I find.
 
So a little birdie let me on on some reasons turbo seals start to leak:

1) Too much oil in, not enough out (too small of a drain). Probably not an issue being it is a factory feed and drain.

2) Too much crankcase pressure.  Could be a possibility with the added boost of modded turbos.  Maybe the stock CCV system is taxed?

3) Seals may collapse from heat.  Ehh, not really seeing this.  Don't think EGT are getting much higher with just modded stock units.

4) Turbo seals are just worn out.  Hopefully not.  Hopefully they were replaced when the modifications we done.

Are any of the guys with smoke issues seeing any extra oil on the charge pipes?  Any oil blowing by on the compressor side?  This can be caused by an underside air filter/dirty air filter.
 
Hoping some of the original people associated with this thread will see this post and respond as I am experiencing the same thing as the OP with my catless downpipes.
 
I'm also hoping anyone that has had this issue that may have found the fix can shed some light. I not have this exact same blue smoke issue. I had the LMS o/r downpipes and Magnaflow all put on at the same time it was tuned. Last weekend I cut out the third cat and straight piped it. Only did it because I could hear rattling from it thinking the catalyst was loos and banging against the shell. I had no smoke issues until I removed the third cat. After talking with LMS about it they said these cars are smokers after all cats are removed. I just can't believe so much oil getting by can be normal. I'd like to hear if any people that have o/r downpipes and third cat delete that have no issues. If there are people out there with no blue smoke issues it tells me it's got to be a common turbo issue most likely.
 
The common thread in all he smokey posts seems to be removing cats..... Everything else not withstanding, this is where it points.
Just saying....
 
Has anyone found if it's the lack of pressure on the seals that causes the leak or if it's just the nature of these turbos to leak and we just don't see it with the cats on.
 
That's exactly what I'd like to know.

Anyone that has deleted all three cats and has not had blue smoke and burning oil smell please let us know.
 
Everyone experiencing any smoke, did you have the oil return lines updated via the TSB or are you on the original un-updated lines?
 
I'm currently beta testing a resolution on my whip.

Final results still pending, however initial observations are look'n good.

Part of the issue, from what I've learned, is that the OEM supply side designed by FMC is dumping an unneccesary amount of oil on the supply side, into the turbo(s). This done purposely from what I understand,  to provide an adverse amount of safety to compensate for a (potential) range of conditions.

A light amount of smoke occurs when one chooses to go completely catless.

Regardless of what turbo(s) are being utilized. Stock, or aftermarket.

I'll digress for now, as final results are not in.
 
bpd1151 said:
I'm currently beta testing a resolution on my whip.

Final results still pending, however initial observations are look'n good.

Part of the issue, from what I've learned, is that the OEM supply side designed by FMC is dumping an unneccesary amount of oil on the supply side, into the turbo(s). This done purposely from what I understand,  to provide an adverse amount of safety to compensate for a (potential) range of conditions.

A light amount of smoke occurs when one chooses to go completely catless.

Regardless of what turbo(s) are being utilized. Stock, or aftermarket.

I'll digress for now, as final results are not in.

That's what I've been thinking of actually, it seems as if the problem is delivery of oil to/from the turbo. In my opinion, in order to have efficient delivery of oil you need a closed, air-tight system as it is pressurized to delivery the oil. FMC faulty oil-return lines probably were either too small or not creating a tight seal and causing some oil to leak out (reason for the TSB).

As such, having poor oil flow to/from the turbo's could result in fried seals (which some people are seeing) or inconsistent blue smoking from the oil being burnt.

Thoughts on this?
 
Our vehicles as many as of you are aware when purchased new or adding a upgraded turbo must be broken in properly,first couple hundred miles must be driven briefly and then to make sure to let it cool down,if procedure is not followed the seals can lead to heat exposure and cause abrupt consequences.
 
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