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oil in compressor housing fp black dbb

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Old Jan 23, 2014 | 04:13 PM
  #31  
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Originally Posted by mberenis
Im running it exactly how fp says, from the oil filter housing with the inline filter kit. Using their lines too.


Imo, i think this sucks and im kind of pissed i paid so much money for a turbo with weak gas rings. No joke i had an ebay 20g on my wrx and never had this issue. Why would an fp, name brand uber expensive turbo do this but a cheap pos ebay knockoff turbo made in china not? Not hating just upset and looking for answers.

In the meantime im going to run my catch can exactly how they say even though i dont see how its making 1-2 psi, enough they say to push oil past rings, is possible being that i have a huge 2" breather port. It just doesnt make sense. Smh maybe im just stupid lol

If anyone with knowledge can fill the gap of retard in my brain that fails to understand this theory of building pressure when theres an open hole in the system, please fill me in. Thank you
And yours is ball bearing? Cause that's a lot of oil for a ball bearing. Unless is JB. But if it is BB you should feed it from the head from what I understand.
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Old Jan 23, 2014 | 04:19 PM
  #32  
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Yeah its bb but fp specifically says to feed from the oil filter housing and if we feed from the head pressures can drop low enough to cause damage and they wont warranty any oil starvation issues
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Old Jan 23, 2014 | 11:00 PM
  #33  
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Originally Posted by michaelrc51
Mine is the 4 port firewall VTA one. I already stated it is VTA.

Yes, FP told me the same thing. Tell me how 4, - 6AN lines are even going to let .5 psi accumulate?

I will probably end up putting the line from the air intake to the valve cover just to see, even though it is VTA and shouldn't help......
four -6 AN lines wont let an average of 0.5 psi build at idle or cruise. depending on how loose the motor build is, 0.5 psi could build at WOT. there are however clearly detectable pressure pulses at idle that could momentarily build a small fraction of a psi. i don't think evoscan is fast enough to catch those on my crankcase pressure logging setup. also a working pcv system does generate a very very slight average vacuum at idle, maybe -0.05 psi. slight positive pulses would still be there though, especially for a loose motor.

fp's suggested use of the pcv system and two big *** vent lines (e.g., 3/8" npt to -8 AN) to a catch-can and then intake pipe is a good one for a maf car. for an sd car, there is no need to route the catch can to the intake pipe - a filter on the catch-can will do. in either case, a catch can in the pcv would be helpful. catch cans are a pita though.
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Old Jan 24, 2014 | 07:14 AM
  #34  
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IMHO, there is a problem with the DBB turbos. I have a JB FP Black with no oil what-so-ever in the intake. I am running 2 -6 lines from the valve cover to a greddy catch can with a 1 1/2" breather on the top (VTA). I do not have the front case venting or the dip stick vent. I blocked off the vacuum port on the FP intake.

If you are running a VTA catch can and no vacuum line to the intake, there should be no oil in the turbo inlet. This would tell me that the oil pressure in the turbo is too high causing oil to leak past the seals. Maybe they need to make a larger restrictor to drop the pressure in the turbo.

If your intake was sucking in the oil vapor from the catch can VTA, your intake filter would be completely soaked. Im sure you would notice that before oil in the turbo inlet.
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Old Jan 24, 2014 | 11:14 AM
  #35  
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Yeah I think there is a problem too with the bb turbos. My friend has a fp red JB just like mine but mine is a bb and he never had a issue with the oil on the compressor where I always had a problem with it, since the first day installed and I thought it was the vacuum line from the vc but it wasn't.

Last edited by lopillo_evo; Jan 24, 2014 at 02:33 PM.
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Old Jan 24, 2014 | 06:04 PM
  #36  
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Mrfred - i have the stm entry level catch can, the one that goes on the intake manifold. I have removed my pcv valve and am running the lines as directed by stm. One to the drivers side by the cam sensor, the other where the pcv valve went. It is then vta. I have no lines ran to my intake. I do not have a vented dipstick or the balance shaft breather port.

Do you feel my setup is adequate? Thank you for your input.
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Old Jan 24, 2014 | 09:45 PM
  #37  
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I have the same one you have and it was like that. Now is the balance shaft and the back of the vc to the catch can and the side vc to the intake.
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Old Jan 25, 2014 | 11:13 AM
  #38  
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Originally Posted by mberenis
Mrfred - i have the stm entry level catch can, the one that goes on the intake manifold. I have removed my pcv valve and am running the lines as directed by stm. One to the drivers side by the cam sensor, the other where the pcv valve went. It is then vta. I have no lines ran to my intake. I do not have a vented dipstick or the balance shaft breather port.

Do you feel my setup is adequate? Thank you for your input.
When I had the same setup with my built motor, I was measuring about 0.75 psi crankcase pressure at WOT 7500 rpm. It was way better than the 2.2 psi I was measuring when the vent system was in the factory configuration. I think that to get down to the <0.25 psi range requires drilling the valve cover for at least one -8 AN hose hookup.
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Old Jan 27, 2014 | 08:41 AM
  #39  
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Thank you. So ive put about 200 miles on the car and still no significant loss of oil according to the dipstick. Im going to drive it as is until march and then im taking the car to induction performance in tampa to have them fabricate some charge pipes. While theyre doing that im going to have them modifiy tyr stm can with a cap on the top, elbow, and an an fitting line back to the inlet to give it suction. Im trying to stay as stock looking as possible i thnk this will be the best setup.

When i get it done ill share my results on this thread.
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Old Jan 27, 2014 | 09:06 AM
  #40  
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Originally Posted by mberenis
Thank you. So ive put about 200 miles on the car and still no significant loss of oil according to the dipstick. Im going to drive it as is until march and then im taking the car to induction performance in tampa to have them fabricate some charge pipes. While theyre doing that im going to have them modifiy tyr stm can with a cap on the top, elbow, and an an fitting line back to the inlet to give it suction. Im trying to stay as stock looking as possible i thnk this will be the best setup.

When i get it done ill share my results on this thread.
Very little suction is generated at the intake, maybe 0.05 psi of suction at idle and cruise. The most I've seen with my setup is -1 psi at WOT 7500 RPM. Are you planning to cap the vent on the catch can?
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Old Jan 27, 2014 | 09:48 AM
  #41  
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http://vibrantperformance.com/catalo...oducts_id=1243
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Old Jan 27, 2014 | 11:11 AM
  #42  
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This item is very interesting. Do you use this?
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Old Jan 27, 2014 | 05:35 PM
  #43  
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Read the last few pages of the Sticky-for anyone that has crankcase pressure issues....people have used E-Vacs
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Old Jan 28, 2014 | 11:05 AM
  #44  
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It looks like people are getting inconsistent results some too much vacuum and others not getting enough or not getting vacuum when they want it. The exhaust venturi crankcase scavenging is an existing technology that's been used in racing for some years now.

I'm personally not using it as I'm not having any issues running 2 Saikou Michi cans in a standard configuration with an HKS turbo at about 26 PSI.
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Old Feb 5, 2014 | 03:31 PM
  #45  
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I am running a bb fp red and have oil in the compressor housing as well, alot more oil in the housing than in the pictures that you guys have posted and my turbo has 500 miles. I am not running any catch can setup and when I am WOT and then let off, I get a big puff of smoke. I am not sure if my turbo seals are bad or if this is due to not relieving the crank case pressure. can anyone help me?
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