Jump to content
SAU Community

Oil In Air Intake.

Tonkachow

By Tonkachow,
in General Maintenance

 Share

Recommended Posts

Tonkachow Collaborator

Tonkachow

Posted
Posted

HI.

I was just wandering if what I have found is a big problem or a small problem that is going to be big if I don't take action. I took off my Apexi air filters off my 33 GTR to give them a clean and found a small pool of oil sitting on the lip of one of he hoses coming from the front turbo. It is a tiny amount but enough to pool up and I know oil isn't supposed to be there. If anybody could give me a possibility as to what this could be caused from, it would be much appreciated.

Link to comment
Share on other sites
mad082 Grand Master

mad082

Posted
Posted

it is common for there to be a bit of oil there. the pipe from the turbo to the AFM has a few lines that lead into them. 1 being the breather hose from the rocker cover, the other from the BOV. the oil there could just be a build up of oil over time from the engine breather hose or could be from the bov line. in the past a turbo may have had the front oil seal let go and this would result in some oil making its way through the bov.

if you are concerned about it, clean out the pipe and then check it in a month or 2 and see what it is like. that will give you an indication of whether it is just residue from a prevvious occurance or something to be worried about.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Kinkstaah
      Boost level and torque curve

      By Kinkstaah · Posted

      Because there is still an engine underneath that turbo. PSI is not a measurement of power, it's a byproduct of resistance. What would be really decent is to have a CFM gauge on the output of a turbo to see how much it's actually pushing. 21psi (as an example) is not the same amount of air at 3000rpm as it is at 7000rpm, even if the boost controller is controlling boost at "21psi". The engine is inhaling and exhaling way more air at 7000 than at 3000, even if it's less efficient.
    • thx78
      Boost level and torque curve

      By thx78 · Posted

      don't want anything more or less, I don't really understand why the torque still goes up to 6000-6500, while the boost peak is around 4000. if it only comes from the cams or from the boost controller etc.  
    • Kinkstaah
      Boost level and torque curve

      By Kinkstaah · Posted

      I'm not sure you understand the physics of what you are asking. Can you draw on the dyno graph what you want to have happen? I'm thinking this is a functional impossibility here, unless you chose a turbo literally so laggy that torque is at max at 7000rpm and artificially choked prior to that. Power and Torque are intrinsically linked. Power is just Torque over time. What you're really seeing in the torque graph is "Power per RPM" if that makes any sense whatsoever. You still get more power at 7000rpm than 5000rpm, because it is "power per RPM" and you have more RPM. at 7000 than you do at 5000. You still feel more powerful at 7000rpm. The torque graph will influence the rate of power increase per RPM.
    • luke gtr
      Hello from the UK

      By luke gtr · Posted

      Welcome!  If possible,  would live to see some pics. How long was it away getting the work done? Hopefully it feels like a new machine.
    • thx78
      Boost level and torque curve

      By thx78 · Posted

      yes indeed the graphic format makes a visual difference but there is on average 120nm more between 4000 and 6000rpm on the curves it is not nothing. you are right, the cams influence the torque curve. I was able to chat with one of the Hypergear tuners, he confirmed that a boost control allows you to manage the pressure after the spool. the absolute pressure (psi) on the graphics is measured where? It seems that the cams affect the maximum pressure depending on the regime but I may be wrong.   not pleasant to drive before 4000? if we spend our lives between 1000 and 3000 rpm as you say then we might as well just run diesel turbos
×
×
  • Create New...