Dyno results
Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the CBRXX.com.

Register ButtonIf this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Page 1 of 2 12 LastLast
Results 1 to 15 of 21
Like Tree11Likes

Thread: Dyno results

  1. #1

    Member #
    20094
    Bike(s)
    CBR1100XX '99
    Join Date
    Jun 18 2008
    Location
    South Holland, England
    Posts
    565
    Liked
    191 times

    Dyno results

    I was at a bike event in Great Yarmouth today and popped my bike on a dyno. I was curious to know how my bike was running as it was first registered 20 years ago in March. This is a late carb (1999) and the only change that might affect power was Micron end cans.
    https://youtu.be/QtE-ihwd8PA

    I've included a photo of the printed dyno results right at the end if you want to jump right to it.

  2. # ADS
    Sponsor
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many

    CBRXX.com is the original Honda CBR1100XX Super Blackbird community! Registered Users do not see these ads. Please Register - It's Free!


  3. #2

    Member #
    16478
    Bike(s)
    99 CBR11000xx, Honda F501 RotoTiller
    Join Date
    Jul 03 2013
    Location
    Corpus Christi Texas
    Posts
    2,253
    Liked
    1125 times

    Re: Dyno results

    Way Cool man!! enjoyed the fire out the exhaust.
    thanks for the post.

    STex
    Came into this world with nothing and still have it all.

  4. #3

    Member #
    20094
    Bike(s)
    CBR1100XX '99
    Join Date
    Jun 18 2008
    Location
    South Holland, England
    Posts
    565
    Liked
    191 times

    Re: Dyno results

    Thanks. It was quite nice and warm stood behind it too!

  5. Remove Advertisements
    CBRXX.com
    Advertisements
     

  6. #4

    Member #
    19244
    Bike(s)
    CBR1100XX6 Black
    Join Date
    Nov 04 2014
    Location
    Boston, UK
    Posts
    1,261
    Liked
    332 times

    Re: Dyno results

    Figures for us too lazy to look?
    The answer is 42

  7. #5

    Member #
    2343
    Bike(s)
    2K Titanium, 85 V65 Sabre (Totalled but saved me)
    Join Date
    Sep 24 2007
    Location
    Arizona
    Posts
    6,858
    Liked
    1774 times

    Re: Dyno results

    Fueling was pretty good a little lean from 60 to 90 but not bad enough to hurt anything. If you could drop a little more in there to get it to 12.5 it'll probably pull a little harder in that zone.
    Route 191 formerly Route 666 Some say that this section of the
    road has 1100 curves in 95 miles.

  8. #6

    Member #
    20094
    Bike(s)
    CBR1100XX '99
    Join Date
    Jun 18 2008
    Location
    South Holland, England
    Posts
    565
    Liked
    191 times

    Re: Dyno results

    Not sure I can do much with that sort of fine tuning on a carb model?
    The figures for the lazy
    20190706_120508.jpg
    Krisbiker2 likes this.

  9. #7

    Member #
    2343
    Bike(s)
    2K Titanium, 85 V65 Sabre (Totalled but saved me)
    Join Date
    Sep 24 2007
    Location
    Arizona
    Posts
    6,858
    Liked
    1774 times

    Re: Dyno results

    It'd be in the needle shape to get the fuel right. You could send a pic to dynojet and see what they say.
    Route 191 formerly Route 666 Some say that this section of the
    road has 1100 curves in 95 miles.

  10. #8

    Member #
    19674
    Bike(s)
    2007 CBR1100 SuperBlackbird
    Join Date
    Mar 02 2015
    Location
    Australia
    Posts
    4
    Liked
    1 times

    Re: Dyno results

    I haven't had the head off my bird to see how they are constructed, but knowing engines and valve trains, it looked like the top end might just not quite be at the peak. On the deceleration it was blowing a puff of blue. Made me think valve guides will need some attention soon. If you don't really push the bike regularly, though, it wasn't really bad, but it might account for a couple of horses along the way.

  11. #9

    Member #
    21813
    Bike(s)
    2000 XX & '06 Stratoliner
    Join Date
    Jul 05 2016
    Location
    Reston, VA
    Posts
    14
    Liked
    7 times

    Re: Dyno results

    Numbers are right on and A/F looks surprisingly good. Either the carbs were better tuned for A/F when new or there is a jet kit installed. The FI models are known to be way rich from the factory. HP is right on too. Stock birds typically would run a bit over 130 HP and a bit over 80 FtLbs stock. Know what gear the pull was in to hit 166 MPH?
    Last edited by Reston_XX; 07-10-2019 at 8:42 AM.

  12. #10

    Member #
    19962
    Bike(s)
    2002 XX
    Join Date
    Apr 22 2015
    Location
    Croatia
    Posts
    412
    Liked
    191 times

    Re: Dyno results

    How much HP could be added on the premise of positive airbox pressure that happens on actual road?

  13. #11

    Member #
    616
    Bike(s)
    99 CBR1100 Race version
    Join Date
    Dec 23 2006
    Location
    near London,Canada
    Posts
    4,693
    Liked
    805 times

    Re: Dyno results

    Good results, I wouldn't touch a thing. A/F ratio varies all the time anyway, you're good.

  14. #12

    Member #
    616
    Bike(s)
    99 CBR1100 Race version
    Join Date
    Dec 23 2006
    Location
    near London,Canada
    Posts
    4,693
    Liked
    805 times

    Re: Dyno results

    Quote Originally Posted by -Tom- View Post
    How much HP could be added on the premise of positive airbox pressure that happens on actual road?
    The faster you go the better it gets. A test was done by Sport Rider once, Oct '99, I'm missing part 2 where they show hp gains, but the XX ram air works very well, building positive pressure in the air box from about 90 mph and peaking at 28mb, the highest in the test equalled by the Kawi ZX9.

    I believe the net result is about a 5% gain in rwhp.
    The Hayabusa in comparison makes only 16mb of pressure but fluctuates heavily getting there and is going a lot faster before making any, where the XX is smooth (as are the Kawi's, who have been at it longer).
    I'm gonna look for part 2.

  15. #13

    Member #
    9315
    Bike(s)
    Brum Brum
    Join Date
    Aug 08 2010
    Location
    Eire
    Posts
    27
    Liked
    3 times
    Partsguy, do the efi models run a true ram air system? On my carb the passageways from the snouts on the front of the bike to the air box seem intentionally baffled to allow the air box draw air that is not turbulent.
    I remeber the dyno tuner saying her carbs wont run optimally if they're removed.

    OP, good results on the dyno there imo. With carbs it's not as easy to hit the line all the way across as with a pcommander eh.
    I got lucky with my exh system, didn't need drastic changes after dyno time.

  16. #14

    Member #
    2343
    Bike(s)
    2K Titanium, 85 V65 Sabre (Totalled but saved me)
    Join Date
    Sep 24 2007
    Location
    Arizona
    Posts
    6,858
    Liked
    1774 times

    Re: Dyno results

    Thesa
    Yes it's a true ram air. The ducts are chambered to help amplify the effect. They run down either side and slip into the ports on the air box.
    Route 191 formerly Route 666 Some say that this section of the
    road has 1100 curves in 95 miles.

  17. #15

    Member #
    9315
    Bike(s)
    Brum Brum
    Join Date
    Aug 08 2010
    Location
    Eire
    Posts
    27
    Liked
    3 times
    Hey, thats weird because on my carby the inlets of the airbox are not mated to that of the front of the bike. I can't understand how that design can lead to the airbox pressurising in any meaningful manner. It seems designed to prevent that very thing? Seems to be more of a cold air feed.
    Maybe my understanding of ram air is different to what it actually is?
    Worked on a zx12r before and i can probably imagine that airbox is tuned for induction. Crazy thing howled/resoanted below you!


 
Page 1 of 2 12 LastLast

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •