Feel no difference between 19.5 and 23

  1. Yaminashi

    Yaminashi Member

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    I have the dual tune on my Si and it honestly doesn't feel any different putting it back and forth. Did a 0-60 in both modes and came to same times also have looked at the in car boost gauge and it peaks out at about 17 psi. I know the car still looks for the right parameters but I still feel like I should feel a difference between the two tunes.
     
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  2. Masked

    Masked Senior Member

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    Peaks at 17psi in sport mode? Mmh check for boost leak, also do you have a datalog?
     
  3. gtman

    gtman Senior Member

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    Don't go by your stock boost gauge. Hook up your KTuner and run a datalog as suggested above. No way your boost should peak at 17 psi on those tunes.
     
  4. OP
    Yaminashi

    Yaminashi Member

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    I'll try and get tunerview up and running to see what it says my boost is at.
     
  5. Design

    Design Senior Member

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    Even the stock boost guage should show a significantly higher PSI readout above 4K RPMs... at least in 3rd gear and above.

    Question: Did you configure the map switching options in the desktop software?

    drex_on_the_fly_map_switching_custom.png
     
  6. OP
    Yaminashi

    Yaminashi Member

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    The only thing I did was check the options for turbo responsiveness.
     
  7. Design

    Design Senior Member

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    I suggest manually setting your normal/sport boost targets for all three maps - even if each map would have the same parameters.
     
  8. OP
    Yaminashi

    Yaminashi Member

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    Reflashed the car today with the same tune and selected the boost targets for normal and sport, still getting peak psi at 17.5 for both tunes from the car and on tunerview.
     
  9. gtman

    gtman Senior Member

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    Boost leak somewhere it would seem.

    Run a full datalog and do some WOT pulls and upload it here.
     
  10. Design

    Design Senior Member

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    Did you update your software parameters as suggested? Or do they still say custom level?
     
  11. OP
    Yaminashi

    Yaminashi Member

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    I updated them as suggested. I'm going to run two separate datalog files tomorrow, one for the 19.5 and the other for 23.
     
  12. gtman

    gtman Senior Member

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    No need for two datalogs. Just do half the drive at 19.5 and the other at 23.
     
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  13. OP
    Yaminashi

    Yaminashi Member

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    First half is in normal, second half is in sport.
     

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  14. KTuner

    KTuner Senior Member
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    You're not on a tune. You likely uploaded to the unit instead of flashing or failed a flash and recovered back to factory.
     
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  15. OP
    Yaminashi

    Yaminashi Member

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    Thanks, glad I'm pretty dumb. I'll try it out tonight.
     
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