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vaccum on boost gauge

Discussion in 'Leon Mk1 (2000-2006)' started by bainsycupra, Feb 15, 2010.

  1. bainsycupra

    bainsycupra Guest

    hi any one know what vaccum leon cupra r should run on tickover.mines at -8 does that sound right
     
  2. adam cupra 20vt

    adam cupra 20vt Built Not Bought.

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    I'm sure mines -20 or -25 on idle but mines not a R
     
  3. wayne lcr

    wayne lcr bored of it now

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    mine same -8 and its a lcr
     
  4. turbin

    turbin Guest

    LCR 9psi vacuum
     
    #4 turbin, Feb 15, 2010
    Last edited by a moderator: Feb 15, 2010
  5. wayne lcr

    wayne lcr bored of it now

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    thats boost turbin:cartman:
     
  6. vwbassett

    vwbassett Joined the Dark Side

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    mines -20 to -25 on an LCR for what ever vacuum is measured in
     
  7. BoomhaueR

    BoomhaueR Wanna go fasterrrR

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    Same here
     
  8. wayne lcr

    wayne lcr bored of it now

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    is that remapped?
     
  9. BoomhaueR

    BoomhaueR Wanna go fasterrrR

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    Yeah stage 1.
     
  10. wayne lcr

    wayne lcr bored of it now

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    so it must be more vac on a maped 1
     
  11. adam cupra 20vt

    adam cupra 20vt Built Not Bought.

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    Mines not mapped and I get the same vaccum
     
  12. wayne lcr

    wayne lcr bored of it now

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    my gauge dont go that low?:(:shrug:
     
  13. turbin

    turbin Guest

    18 inHg or 9psi vacuum.
     
    #13 turbin, Feb 15, 2010
    Last edited by a moderator: Feb 15, 2010
  14. rsmith

    rsmith Robbie

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    I'm mapped and its -8 on that last 2 Boost guages i've had on.
     
  15. LEE69

    LEE69 Stage 2 Revo'd

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    Mines around -22 as well.
    Those at -8 you have a leak ;)
     
  16. LEE69

    LEE69 Stage 2 Revo'd

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    Just think, if you are losing vacuum on idle, just how are you loosing on boost ;)
     
  17. rsmith

    rsmith Robbie

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    I have logged extensively and this no evidence of a leak on my car.
     
  18. BoomhaueR

    BoomhaueR Wanna go fasterrrR

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    I'm sure there was a thread on this not long ago. The conclusion IIRC was that a vacuum lower than approximately 20inhg (i.e between 0 and 20inhg) then you have a leak somewhere. Apparently the air con might make a difference to the reading if it's switched on. Around 20inhg or higher is normal.
     
  19. rsmith

    rsmith Robbie

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    Interesting, i will trible check my hoses.But if there is a leak its minor, i have logged boost at least 10 times over the past few week and everything looks normal.

    Maybe if we could get more peeps posting what vacuum they are running at normal idel(not choke or with aircon on) for the LC and LCR we could get a better picture of what peoples reading are.

    get posting peeps.
     
  20. BoomhaueR

    BoomhaueR Wanna go fasterrrR

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    #20 BoomhaueR, Feb 15, 2010
    Last edited: Feb 15, 2010

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