!Help - power limited to 100hp (70kw) on my '12 fireblade

Discussion in 'General 1000RR Discussion' started by manu pela, May 11, 2023.

  1. manu pela

    manu pela New Member

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    Hi to all,

    i just bought a '12 blade from France and it has a power limit restriction to ~100hp /70kw.
    behavior is really nasty, top speed is 250kmh at 10k rpm in 6th and it won't go any further. i can reach the redline in 1st gear but power delivery does not seem right

    anyone knows how to derestrict it? (no rubber restriction to intake in airbox)...feels like it's ecu restricted not mechanical.

    i have found online that there is a power restrictor kit to 70kw, and it consists of a small bracket that limits the throttle body and i will check out if i have one installed or not

    https://www.biketeile-service.de/Honda-CBR-1000-62967/en/engine/powerrestrictorkit/
     
  2. bonjo

    bonjo Active Member

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    yes all bike are restricted to 100 or 105 bhp in france. There was talk about doing the same in the uk so I bought my RR8 at the time just in case!
    the kits in the link is for restrictors. You want to de-restrict!
    My first step would be to contact honda customer service and get their response
     
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  3. manu pela

    manu pela New Member

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    thank you for your fast reply!
    i want to derestrict, and that's why i put the link with the restrictor kit to see if anyone knows about these, or if it's a different ECU map flashed to my CDI.
    until now, no honda dealer could help me :(
     
  4. Coda

    Coda Active Member

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    They probably wont want to even if they can. I don’t know the law in France, maybe it’s not legal to circumvent/remove the restriction?

    I find it interesting there also a kit to limit a Fireblade to 48PS. That would make a nice A2 restricted bike in the U.K…
     
  5. manu pela

    manu pela New Member

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    i am outside of France , only the bike was originally purchased from France
    i just want to find out what i need to do with it. Flash a new map or is there a mechanical limitation that i have to pop out
     
  6. Broadie

    Broadie Active Member

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    Start with a remap and see what happens. Only other things could be restricted inlet, airbox or throttle body action.
    You could cross-reference part numbers between France and elsewhere. ( Have a look a camshaft part numbers too)
     
  7. bonjo

    bonjo Active Member

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    If it is a genuine French bike, then the mode was done by Honda or the authorised dealer.
    Could be a hardware mod or a software one
    I would not be surprised if someone french riders have removed this mod.
    Why not contact a dealer in France about this and also check french bike forums.
    I know us models also are power restricted and generally an ECU reflash is popular over there.
    If it were me, I would want to do it right. Find out how the power is restricted, then undo it.
     
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  8. Broadie

    Broadie Active Member

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    Good luck with your quest. Be sure to post up your findings.
     
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  9. manu pela

    manu pela New Member

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    i've been on and off on email with Honda France. The dealership the bike was bought from is out of business and now i ended up emailing Honda France homologation. no answer as of now
     
  10. manu pela

    manu pela New Member

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    this is what honda's dealership diagonostic tool says when they connect the bike and they cannot do anything....
     

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  11. Grooveski

    Grooveski Active Member

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    I'd be more inclined to try a smaller workshop, rather than a Honda dealer.
    Do you maybe have someone local who's been around for a while and done a bit of race-prep in their time? They guys tend to have seen it all.
    Perhaps ask whoever has the closest dyno to you.

    I remember that. My dad used it as an excuse to freshen up to a newer Blackbird. :)
     
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  12. Broadie

    Broadie Active Member

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    Send it away for format and rewrite or get an ECU from the states. I say the states because hiss will be another expens.

    Or take it to a good independent rolling road tuner (not power commander or bazza ect) , who can crack the ECU map it and tell you if any other restrictions are still on the bike.
     
    #12 Broadie, May 19, 2023
    Last edited: May 19, 2023
  13. BlackDevil

    BlackDevil God Like

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    The specific details of how the French version of the Honda Fireblade 2012 may have been restricted can vary. However, one common method used to restrict motorcycles is through the ECU (Engine Control Unit) programming.

    Manufacturers may program the ECU to limit the motorcycle's performance in order to comply with local regulations, such as emissions standards or power restrictions.

    Restrictions imposed through ECU programming can include:

    1. Power output limitation: The ECU may limit the maximum power output of the engine by restricting fuel delivery, adjusting ignition timing, or limiting the throttle opening. This is done to comply with power restrictions imposed by certain countries or regions.

    2. Throttle response restriction: The ECU can be programmed to limit the throttle response, making the acceleration less aggressive. This can make the motorcycle feel less powerful or responsive.

    3. Speed limitation: Some motorcycles have speed restrictions programmed into the ECU, capping the top speed. This is often done to meet local regulations on maximum allowable speeds.

    4. Emissions control: The ECU can also control the air-fuel mixture and other parameters to meet emissions standards. By limiting power or adjusting fueling, the motorcycle can produce lower emissions but may sacrifice some performance.

    These restrictions are typically put in place by the manufacturer to comply with local laws and regulations specific to the region in which the motorcycle is sold.

    Have your ECU unit flashed by a motorbike tuner first!
     
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  14. manu pela

    manu pela New Member

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    official reply from 2 Honda HQ (Hungary and France) is that the ECU cannot be rewritten with the factory map. the homologation department in France had the bike detuned to 100hp and that's it.

    solution is buy new ecu with key, immobilizer, ignition switch, fuel gas cap, pillion cover lock and throw it on the bike.
    also if i were to go to a dealership they will have to send the bike to be rehomologated , new papers and so on...

    a tuner workshop also said thay it is not worth it since they will have to cut out the pcb from the ecu housing and potting, manually probe the memory and flash it and it is not without risk (50-50% that i will work or brake it entirely).
     
  15. Broadie

    Broadie Active Member

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    Try another tuner or as said get a second hand non hiss ECU from America.
     
  16. manu pela

    manu pela New Member

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    solved with new ECU (unlimited). got it from a scrapped bike

    bike now runs as supposed to. i could not find other limitations.
    the only visual issue is now that my instrument cluster has the red line starting from 12k rpm and not 13k as it supposed to be.
     
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  17. bazzashadow

    bazzashadow Elite Member

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    Why did you buy it in the first place:confused:
     
  18. Broadie

    Broadie Active Member

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    Great news.
    Was it a full lockset or just the chips to match the ECU?
     
  19. manu pela

    manu pela New Member

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    full lockset on ebay.uk - pillion, tank, key reader. whole thing was around £300. very satisfied with the seller.
     
  20. manu pela

    manu pela New Member

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    you assume that i knew about the limitation or that the seller was honest : ))
    bought the bike in december , did not get the chance to reach those revs on the road.

    all in all, the good part out of this experience is that i know now that the bike was not redlined since 2012 so hopefully it has less wear under normal service times.
     
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