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Thread: ESE's works engine tuner

  1. #33421
    Join Date
    3rd February 2004 - 08:11
    Bike
    1982 Suzuki GS1100GK, 2008 KLR650
    Location
    Wallaceville, Upper hutt
    Posts
    4,308

    Has this been mentioned here before?

    http://www.2t-racelab.com/2012/02/kawasaki-x-09.html Neat looking, unique engine configuration but in the end not fast enough
    it's not a bad thing till you throw a KLR into the mix.
    those cheap ass bitches can do anything with ductape.
    (PostalDave on ADVrider)

  2. #33422
    Join Date
    22nd November 2013 - 16:32
    Bike
    STRIKE trike & KTM300 EXC TPI
    Location
    Perth, Western Australia
    Posts
    667
    Here’s a pic of a TM 100 cc reed kart engine with piston & cyl removed. Direct drive, air cooled and used for sprint kart racing.

    Click image for larger version. 

Name:	TM 100 smoothed cranks.jpg 
Views:	399 
Size:	141.8 KB 
ID:	344665

    Someone has put a lot of time into the bottom end, blending out the cases and, interestingly, radiussed the inside edge of the crank webs. Not sure if this might be of any benefit, but could/does offer the following:

    1. Increases crank case volume
    2. Lightens the crank and reduces its flywheel effect (2nd moment of mass). The opposite of what has been done elsewhere.
    3. Reduced the Cd of gas flow into and out of the crank cavity, particularly as this is a vertical reed engine.
    4. Perhaps improves the lateral flow out of the crank cavity towards the transfer entries
    5. Adds remote volume, at the bottom of the case cavity, maybe making the transfer of this extra volume less accessible.

    Anyone seen this and would it be advantageous in certain applications? I do know there are a shitload of other variables involved, that need to be taken into account. I also appreciate that there are no simple universal answers for 2 strokes.
    “Plagiarism is copying an idea from someone. Research is copying an idea from many"

  3. #33423
    Join Date
    18th May 2007 - 20:23
    Bike
    RG50 and 76 Suzuki GP125 Buckets
    Location
    Auckland
    Posts
    9,902
    Quote Originally Posted by Grumph View Post
    I'd still advise caution.
    Thanks for the heads up.

  4. #33424
    Join Date
    18th March 2012 - 08:35
    Bike
    Homebuilt chassi, Kawasaki 212cc
    Location
    Sweden
    Posts
    464
    Another question:

    Is there some way to remove nicasil without machining?

    Rgds

  5. #33425
    Join Date
    20th January 2010 - 14:41
    Bike
    husaberg
    Location
    The Wild Wild West
    Posts
    10,079
    Quote Originally Posted by SwePatrick View Post
    Another question:

    Is there some way to remove nicasil without machining?

    Rgds
    I thought it gets stripped with nitric acid?
    Yow ling has done it.
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  6. #33426
    Join Date
    8th February 2007 - 20:42
    Bike
    TZ400
    Location
    tAURANGA
    Posts
    3,130
    Ken , here are some thoughts on the TM100 kart mods.
    The crank radiusing probably has more positive effect on the intake Cd as alot of the flow from the vertical reed orientation is directed straight into that area.
    In a 100cc kart engine , the reduction in inertia would have more positive effect on acceleration , than the negative effects of the in cycle speed variation reducing transfer STA , as its
    easy to get sufficient areas with the low bmep produced.
    This type of mod was done many years ago on many factory tuned 100cc reed engines I have seen.
    Ive got a thing thats unique and new.To prove it I'll have the last laugh on you.Cause instead of one head I got two.And you know two heads are better than one.

  7. #33427
    Join Date
    12th March 2010 - 16:56
    Bike
    TT500 F9 Kawasaki EFI
    Location
    Hamilton New Zealand
    Posts
    2,071
    Ok, Im going to ask here, who has a set of late modle YZ 125 cases laying around? So I might measure them up. No asking questions, ok. You can have them back when Im finished.

  8. #33428
    Join Date
    15th August 2011 - 12:25
    Bike
    CBR125TF
    Location
    New Plymouth
    Posts
    14
    Stinger question:
    Due to packaging and the location of my muffler (under seat) my stinger is ending up longer than desired.
    Would it help keep things in order if I step it back up by a tube size or two after the designed stinger length?

  9. #33429
    Join Date
    25th March 2004 - 17:22
    Bike
    RZ496/Street Triple R/GasGas/ etc etc
    Location
    Wellington. . ok the hutt
    Posts
    17,348
    Research posts on nozels at baffle end and make the Stinger bigger.
    I've been told. Dreaming`s free.
    Think I'll go, back to sleep.
    Everybody listen, voices in my head
    Everybody listen, do yours say, what mine says?

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