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  1. #1

    Little Lag time in response..

    Took my Spark out this weekend and noticed a bit of lag in the response time with Vtech tune.. it was so aggressive before. .this weekend just seemed a bit sluggish on the response. Any ideas?
    Looks like wear ring is fine ( Riva stainless ).
    Fuel possibly? Plugs? It just hit 50 hours so due for oil change and plugs anyway.
    Thanks in advance!


  2. #2

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    Quote Originally Posted by Chucke.b View Post
    Took my Spark out this weekend and noticed a bit of lag in the response time with Vtech tune.. it was so aggressive before. .this weekend just seemed a bit sluggish on the response. Any ideas?
    Looks like wear ring is fine ( Riva stainless ).
    Fuel possibly? Plugs? It just hit 50 hours so due for oil change and plugs anyway.
    Thanks in advance!
    Are u putting it into sport mode? The touring mode on the vtech tunes has AlOT of throttle delay. The vtech sport mode is instant throttle.

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  4. #3
    Yep.. Vtech only works in Sport Mode.

  5. #4
    ride it like you stole it!!! raceneked's Avatar
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    Quote Originally Posted by Chucke.b View Post
    Yep.. Vtech only works in Sport Mode.
    huh? where do you get this info from?

    The v-tech tune on my SPARK has a 'touring mode', as well as a 'sport mode'

    there is no 60hp cruise about mode any more. Its all 109 hp; only difference is in throttle response time.

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  7. #5
    Mine has a touring mode as well. Maybe its just throttle response then. ( But Im talking about Sport mode.. )

  8. #6
    GasResearch-VT.SE's Avatar
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    can be numerous things... does it hit rev limiter easier than before?

  9. #7
    xdrian's Avatar
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    I have seen a photo where some one had a small piece of wood cut and stuck onto the front of the prop maybe worth a look with a torch to see if something stuck on the prop

  10. #8
    Its reaching 7600-7800 RPM / Top Speed is normal 50-52 mph.

  11. #9
    xdrian's Avatar
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    What tune you running ??
    does sound a bit low
    I would check and clear any errors codes first then see.

    I had some throttle sensor problems it would through a check engine message then go but I noticed it didn't go in limp mode, but it did drop about 500rpm to 750rpm sound like you too

  12. #10
    Running the IBR 8750 AGR tune.. the only one available for IBR. Bad thing is I dont have the tuning module.. I had a shop put it on. So cant check for codes.
    Also running Solas 12/17 , Riva Stainless wear ring, R&D Intake grate, WORX rear exhaust and a gutted water box.

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