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Mysterious Leak Under Boost

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Old 05-29-2017, 06:21 PM
  #21  
CharlieC5Z06
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Will do. Thanks
Old 05-30-2017, 09:05 AM
  #22  
Chevy Guy
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Tough to tell from the pics - but could it be a power steering or front seal leak?
Old 05-30-2017, 09:08 AM
  #23  
CharlieC5Z06
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I did have a power steering leak at some point but I think I fixed that. I will check again when I get home tonight. Ill check the front seal as well. If its not the procharger then ill have to raise the price of the P1 that Im selling now. lol
Old 05-30-2017, 09:24 AM
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Yeah - best of luck though, saw your for sale post. Did you give procharger a call and ask about the impeller possibly causing it?
Old 05-30-2017, 09:32 AM
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CharlieC5Z06
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No but it could be. I just know what prochargers answer is going to be. Send it to us and you shouldnt let anyone else work on it but us.
Old 05-31-2017, 08:57 AM
  #26  
David@MMS
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you are blowing boost from the intake manifold directly into that catch can it appears.
Old 05-31-2017, 09:04 AM
  #27  
CharlieC5Z06
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Not really sure what that means David. Are you saying I am loosing boost out of the manifold and its blowing into the catch can? I def had procharger oil coming from the procharger and also going into the intake because I found a little puddle in the supercharger plumbing. I have a D1SC coming so I will see how it runs with that on it. Should I change my PCV setup?
Old 05-31-2017, 09:11 AM
  #28  
David@MMS
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Originally Posted by CharlieC5Z06
Not really sure what that means David. Are you saying I am loosing boost out of the manifold and its blowing into the catch can? I def had procharger oil coming from the procharger and also going into the intake because I found a little puddle in the supercharger plumbing. I have a D1SC coming so I will see how it runs with that on it. Should I change my PCV setup?
I did not get to every post here but (doing what i do) zeroed in on the picture of your intake manifold connected to an open vented catch can. This is a no-no for two big reasons.
1. huge vac leak during normal driving, in addition defeating any sort of pcv.
2. huge boost leak in boost.

How that relates or does not relate to oil from the supercharger I cannot say. Call it a new problem if you like. Just trying to help
Old 05-31-2017, 09:16 AM
  #29  
CharlieC5Z06
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Ok thanks alot. After I got the supercharger installed the hose thats going into the catch can was just hanging down into the engine bay. The mechanic said that it could stay like that or get a catch can to collect any of the blow by.

I really have no idea about PCV systems. I asked my old mechanic about it a couple weeks ago and he said "the Z06 pcv valve is built into the valley cover, as long as you dont have the hoses going directly from the intake manifold to the valve covers or that valley port you should be good."

Is this true?

Thanks again David.
Old 05-31-2017, 10:04 AM
  #30  
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it gets more complicated than that

you are not stock power any more, more power = more crankcase flow and that should be considered in system vent capacity

you are boosted, so we need to make sure that we don't have a way for boost to go anywhere except for into the cylinders.

in short, you can't do what you are trying to do with what you have.

Originally Posted by CharlieC5Z06
Ok thanks alot. After I got the supercharger installed the hose thats going into the catch can was just hanging down into the engine bay. The mechanic said that it could stay like that or get a catch can to collect any of the blow by.

I really have no idea about PCV systems. I asked my old mechanic about it a couple weeks ago and he said "the Z06 pcv valve is built into the valley cover, as long as you dont have the hoses going directly from the intake manifold to the valve covers or that valley port you should be good."

Is this true?

Thanks again David.
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Old 05-31-2017, 10:08 AM
  #31  
CharlieC5Z06
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Ok thanks alot. Any advice on what I have to do? Or where I can find out anymore info on PCV?
Old 05-31-2017, 10:46 AM
  #32  
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Originally Posted by CharlieC5Z06
Ok thanks alot. Any advice on what I have to do? Or where I can find out anymore info on PCV?
Run your line from the LS6 valley cover into a catch can, then run a line from the catch can to a check valve to the intake manifold. This way it is pulling crankcase pressure when your are not in boost and when you are in boost the check valve closes and you don't lose boost or pressurize the crankcase.

That is the most basic setup.
Old 05-31-2017, 11:42 AM
  #33  
CharlieC5Z06
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Ok great thanks alot.
Old 05-31-2017, 12:41 PM
  #34  
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i agree running through the stock pcv is the most basic setup
and adding a check valve would indeed block boost, BUT

we have not increased system airflow capacity beyond stock, so you may see crankcase oil from the clean side blowing out into the s/c inlet

this is what i do for a living, check out the website, my stuff or work with something else I would be happy to help you on it. mightymousesolutions@gmail.com
Old 05-31-2017, 03:19 PM
  #35  
CharlieC5Z06
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ok thanks guys. I am going to take a look at my system when I get home from work tonight and see if I can figure this out. David I checked out your site and might be buying a system from you if I can figure out what the hell I need. Thanks again.
Old 05-31-2017, 03:31 PM
  #36  
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I am sure you need the c5/6 wild kit but am happy to discuss all you like!



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