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3.9 or 4.11 diff??

Discussion in 'General' started by SlvrR8, Sep 21, 2011.

  1. LETZRIDE

    LETZRIDE New Member

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    as long as you are going to stay N/A 4.11's are fine than...if you go F/I that gear will be too short
     
  2. GRPABT1

    GRPABT1 Jakstas' Warden

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    Turbo's need lower ratios to help load the motor and spool the turbo but superchargers still run well with the same gears as NA motors. If you go drag racing then basically you wanna pick a ratio that puts you as close top revs over the line in 1:1 ratio gear (3rd for auto, 4th for manual) without limiter bashing.
     
  3. SlvrR8

    SlvrR8 New Member

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    Yeah true ATM I cross the line in forth but only probably around4000-4500rpm not 100% sure.
     
  4. SlvrR8

    SlvrR8 New Member

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    Wait no it should be higher rpm than that I think..
     
  5. GRPABT1

    GRPABT1 Jakstas' Warden

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    With 4.11's I am crossing the line somewhere around 6000rpm (factory tacho lol). It's up there somewhere but not enough to light up the shift light which is set to about 6900. That's at 117mph.
     
  6. SlvrR8

    SlvrR8 New Member

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    117 nice what mods do u have?? My best et is 13.6 at 105.
     
  7. GRPABT1

    GRPABT1 Jakstas' Warden

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    It's a very long list lol. I'll make a build thread one day...
     
  8. SlvrR8

    SlvrR8 New Member

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    Haha fair call
     
  9. STEEV888

    STEEV888 New Member

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    4.11's you will love em.
     
  10. SlvrR8

    SlvrR8 New Member

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    Thanks mate yeah I'm definitely sold on 4.11s now. Hopefully next month I'll go get my car( 200km away in old mans shed) do the diff and also gonna nolathane it
     
  11. kouta72

    kouta72 New Member

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    I got a wk statesman can I calibrate my speedo if i go 3.09 ?
     
  12. xkyle22x

    xkyle22x New Member

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    Yes with a tech 2 you can
     

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