Thruxton Thruxton R Power Commander 5 Custom Map

Discussion in 'Thruxton, Scrambler & Trident' started by Flashp, Oct 7, 2018.

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  1. Flashp

    Flashp Well-Known Member

    Dec 6, 2017
    178
    93
    Hants
    I had the TTR fitted with a power commander and custom mapped Saturday, it was already sporting an X pipe and US spec V&H silencers. The popping on throttle closure has 95% gone (not unhappy about that although I never disliked it) and the snatchy throttle is a thing of the past, although I thought it wasn't too bad beforehand in all honesty, it's way better now and the bike is beautifully compliant on the throttle. A good thing really since the UK weather Saturday in the south was disgusting...extremely wet. The bike was left in road mode and was an absolute peach with town riding and dual carriageway at NSL (~70mph)

    Had dry weather today and once I'd got all the crud off from yesterday I had a short run out. Without waffling on I'll just say it feels significantly stronger and more refined. Showing about 52mpg and still rising while not riding particularly gently. MPG log took a battering on the Dyno :laughing:

    Prior to this, it had had the 12 minute tune applied a few weeks ago as recommended. For interest I'm sharing the before and after plots. The torque increase across the range is very apparent when it's ridden. Not sure that the 12 min tune is quite all it's cracked up to be. The tech noted that it was getting hotter than he thought it should, all good once adjustments made though.

    [​IMG]

    [​IMG]

    [​IMG]
     
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  2. Steveoexige

    Steveoexige New Member

    May 22, 2018
    6
    3
    Sevenoaks
    Well done those figures look great, especially the increase in torque so much lower down the rev range. Which tuner did the mapping?
     
  3. capt

    capt Senior Member

    May 8, 2016
    1,285
    250
    western Australia
    That motor will be so much more pleasant and compliant to ride ! Power everywhere !! And if there is no flat spot's or any snatchy spot's, it will be very smooth handling on any road surface, predictability is a great asset when riding at full throttle / concentration on a windey road.

    I find my 09 America is better in this way since getting it "tuned" McCOLL.jpg
     
  4. Flashp

    Flashp Well-Known Member

    Dec 6, 2017
    178
    93
    Hants
    #4 Flashp, Oct 9, 2018
    Last edited: Oct 9, 2018
    It's a good wedge of torque across a useful rev range isn't it. Steve Jordan Motorcycles did the work, they're at Great Bookham. Contact details on the Dyno plots ;).
    They actually took a call to quote for the same job on another Thruxton while I was there coincidentally. Mine was the first they'd done although I imagine they've seen this engine before. I arrived at 9-00 and was on my way home by 2-00'ish. Never enjoyed a ride in miserable conditions so much, they're 51 miles from me. :D
     
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  5. Flashp

    Flashp Well-Known Member

    Dec 6, 2017
    178
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    I bet the engineers that design the software would prefer not to be confined with Euro 4 regs. The most disturbing thing about my 'before' map was the overly lean AFR, it's all over the place. There's where damage can happen.
     
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  6. Glyn Phillips

    Glyn Phillips Old’N’Slow
    Subscriber

    Jun 21, 2018
    886
    450
    Essex
    You’re before AFR would be miles away because the cat had been removed, had you blanked the o2 sensors at that point as the fuel map would be totally confused so I totally understand the messy map.
    The Power commander once set sorts your issues, like you said earlier, don’t get to hang up on Power gains it also applies for the “perfect “ air fuel ratio as when set spot on,like a lot of tuners go for you usually end up with a snatchy throttle response.as the perfect ratio is very close to lean, I personally like my engines set slightly leaning towards the higher fuel less air ratio as this smooths the throttle response right out although not giving max BHP it feels so much nicer.
     
  7. Flashp

    Flashp Well-Known Member

    Dec 6, 2017
    178
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    #7 Flashp, Oct 9, 2018
    Last edited: Nov 8, 2018
    I agree with you on this. On the before AFR trace my point was that many advocate the '12 minute tune' as a solution to setting the tuning straight after a de-cat etc. I don't think this is all it's thought to be, which is what this trace shows. For the before plot the O2 sensors were still in place and connected. My AFR trace on the finished tune is somewhere below 14.7 for the most part so it's probably considered on the rich side. I have a beautifully 'elastic' throttle now and this bias is good for the engine long term.
     
  8. mentalist

    mentalist Active Member

    Sep 28, 2016
    93
    28
    wigan
    #8 mentalist, Mar 9, 2019
    Last edited: Mar 9, 2019
    Got a couple of questions for you.
    When they are running the bike on the dyno, do they run in and tune it in the different ride modes, or doesn't it matter?
    Also do they turn off the traction control for the runs?
    Curious because I've got mine booked in at the end of the month, been running the PCV standard map for 12 months, really happy with it, but feel there is still room for improvement. Running V&H, Xpipe, quick shifter and snorkle removed.
     
  9. Glyn Phillips

    Glyn Phillips Old’N’Slow
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    Jun 21, 2018
    886
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    Essex
    I’d like to help, but I’m in the process of fitting mine at the mo,but I’d imagine the one map will do all three modes.
    Don’t hold me to that though
     
  10. Flashp

    Flashp Well-Known Member

    Dec 6, 2017
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    #10 Flashp, Mar 11, 2019
    Last edited: Mar 11, 2019
    I believe the mapping renders ride modes defunct. I certainly cant detect any difference between them now.

    What I'd say on rider modes, and this is only my opinion, is that with good mapping being so difficult within the constraints Euro4 regs, manufacturers can have a bike with a snappy throttle that would otherwise be unacceptable and call it 'sport mode' then, to soften things up, they can allow themselves to be affected by these regulations and call a sub-optimal map 'road mode' and the end user will accept this because they still have 'sport' available to them. Then there's 'rain mode' where they can make your bike even more linear at the cost of power.

    A good custom map with PC5 will give you a throttle that I can best describe as 'elastic'. I rode mine home from mapping in atrocious conditions for 51 miles and it was no bother at all.

    I'd also assume they turn TC off so as not to affect the dyno readings although I never asked but assumed they know what they're doing.
     
  11. mentalist

    mentalist Active Member

    Sep 28, 2016
    93
    28
    wigan
    Had the bike dyno tuned on Friday,
    Sports mode with traction and abs turned off.
    95bhp, (85.5 lbs-ft) (115 nm) torque max speed 140.2 mph
    Really pleased, thought the bike went well before.

    20190329_101650.jpg

    FB_IMG_1554070998795.jpg
     
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  12. TonyG

    TonyG Senior Member

    Dec 1, 2016
    180
    293
    Chalfont
    My Thruxton feels fine to me in all modes, I have a decat and Westlake silencers with baffle in. I guess there's always room for improvement though, is there a general consensus on dyno tuning, is it worth it? Do you need the power commander and how much does it cost?

    Cheers
     
  13. Glyn Phillips

    Glyn Phillips Old’N’Slow
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    Jun 21, 2018
    886
    450
    Essex
    It really depends if you’re happy with how your bikes feels, leave it as is.
    My bike as it is isn’t great it is most definitely running really lean until the very top end and then turns really rich right before the redline. So for me not good,the lean part makes the throttle snatchy.

    I’ve since bought straight through pipes and a power commander, I just haven’t got around to fitting them.
    The power commander route does give you exactly what you want, but the cost isn’t really justified if you’re happy with your bike
     
  14. TonyG

    TonyG Senior Member

    Dec 1, 2016
    180
    293
    Chalfont
    Thanks Glyn,

    I am happy with it, can't tell if it is running lean though, does pop on the overrun, but I'm not too worried.

    As it feels fine I'll probably just leave it.

    Brakes, suspension, engine, they are all fine,I'm just looking for things to tinker with. Must stop!
     
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  15. Glyn Phillips

    Glyn Phillips Old’N’Slow
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    Jun 21, 2018
    886
    450
    Essex
    I did say I was going to leave mine standard, but I just can’t be trusted when it comes to tinkering :)
     
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