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Thread: ESE's works engine tuner

  1. #32896
    Join Date
    13th December 2018 - 18:06
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    youtube andreas länström
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    sweden
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    286
    I appreciate that Muciek.

  2. #32897
    Join Date
    21st March 2014 - 22:00
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    RZ350, TZR250 3XV, TZR250 3MA, TZR125
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    Hanau, Germany
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    Boysen Ports

    Quote Originally Posted by peewee View Post
    for anyone thats cut in boyesen ports on the yami twin. do you bother welding on any reinforcement to the rear outboard cyl ear to prevent cracking ? or its not a concearn ? maybe i should have reinforced that ear when doing all the other welding but i over looked it. now the final machining is done on the top and bottom decks, gasket thickness and cyl height position is sorted out. . even with bolting the cyl to a heat sink im not confident i could weld any reinforcement and not end up with alittle bottom deck distortion. part of me says go for it and it will be fine
    I only added some JB weld were I came through the wall, but no welding and it holds since years now...

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  3. #32898
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    4th September 2017 - 10:39
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    Daelim besbi 2008
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    España
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    Quote Originally Posted by Haufen View Post
    PhD Thesis (Valencia)
    Is there an english version, too?


    I have no knowledge of whether it is in English.
    Google translate translate pdf

  4. #32899
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    4th September 2017 - 10:39
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    Daelim besbi 2008
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    España
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    Quote Originally Posted by Flettner View Post
    Yes, GasGas are next.



    The enduro model will be the same as Husqvarna.
    The trial model how will it be?

  5. #32900
    Join Date
    17th September 2013 - 01:07
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    Monark -57(50cc moped), KTM 200EXC
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    SWE
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    142
    KTM buys 60% of GasGas.

    All ideas of why surfs the www at the moment.
    Wonder what effect it will have in the end?
    GasGas, with only 2 strokes in their lineup , seems to offer quite a descent bike with a really good suspension as stock.
    Don’t expect GG to keep the KYB if owned by KTM/WP.

  6. #32901
    Join Date
    19th June 2011 - 00:29
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    KR-1S, KR1-SV, KXR500, ZXR 4/600
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    Belgium
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    Frits, here in your FOS data it says the squish angle in the RSA head is 8.17°

    if I draw that in solidworks, that's the angle of the tangent line to the piston radius. but wasn't the squish paralel to the piston crown radius ?

    and shouldn't the squish radius be 190.7 mm ?
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  7. #32902
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    27th October 2013 - 08:53
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    Quote Originally Posted by 41juergen View Post
    I only added some JB weld were I came through the wall, but no welding and it holds since years now...

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    im sure it would be ok. i filled in the void with weld so it doesnt break through but i overlooked any type of reinforcement . i suppose maybe it isnt needed

  8. #32903
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    27th October 2013 - 08:53
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    has you guys seen this engine before ? says its aussie invention but i never heard of it

    https://motorbikewriter.com/aussie-t...oke-invention/

  9. #32904
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    20th January 2010 - 14:41
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    husaberg
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    The Wild Wild West
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    Quote Originally Posted by peewee View Post
    has you guys seen this engine before ? says its aussie invention but i never heard of it

    https://motorbikewriter.com/aussie-t...oke-invention/
    its posted in the odballs thread its been on this one too i think.
    https://www.kiwibiker.co.nz/forums/s...and-prototypes
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




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

  10. #32905
    Join Date
    18th March 2012 - 08:35
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    Homebuilt chassi, Kawasaki 212cc
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    Sweden
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    660
    Jan Theil, Frits Overmars, Wobbly.

    A question, as i got spaceproblems, is it a big loss shaping a pipe somewhat oval?
    I need clearance so i can have some suspensiontravel left.

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  11. #32906
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    14th April 2011 - 23:44
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    2008 Yamaha fino
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    Bangkok
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    Quote Originally Posted by SwePatrick View Post
    Jan Theil, Frits Overmars, Wobbly.

    A question, as i got spaceproblems, is it a big loss shaping a pipe somewhat oval?
    I need clearance so i can have some suspensiontravel left.

    Click image for larger version. 

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    MZ once used them, but they cracked....

  12. #32907
    Join Date
    28th November 2013 - 21:58
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    Dawes Jaguar
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    UK
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    Quote Originally Posted by speedpro View Post
    Or you could simply open the injector, and run it at 100% duty cycle, at the same time as the inlet and have the fuel flow controlled by an adjustable rising rate fuel pressure regulator. In other words the injector would be an on/off tap and the adjustable fuel pressure used to control fuel flow.
    This bloke has hacked a pressure regulator to give a larger range of adjustment for alternative fuels.
    It is one of those weird engines with unported cylinder liners, sorry...

    https://courseware.ee.calpoly.edu/~a...nolMotorcycle/
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  13. #32908
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    2nd March 2013 - 15:04
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    CBX125F NS50F NS90F NS-1
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    Lower Hutt
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    Quote Originally Posted by SwePatrick View Post
    Jan Theil, Frits Overmars, Wobbly.

    A question, as i got spaceproblems, is it a big loss shaping a pipe somewhat oval?
    I need clearance so i can have some suspensiontravel left.

    Click image for larger version. 

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    http://www.pit-lane.biz/t6246p550-gp...vermars-part-5

    Go to the bottom of page 23. You'll have to login to see the images

  14. #32909
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    20th January 2010 - 14:41
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    husaberg
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    Quote Originally Posted by lodgernz View Post
    http://www.pit-lane.biz/t6246p550-gp...vermars-part-5

    Go to the bottom of page 23. You'll have to login to see the images
    He could also see what happened with the std ovalised TZ750 pipes.
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




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

  15. #32910
    Join Date
    8th November 2015 - 17:28
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    1991 MZ 301
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    Denmark
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    Quote Originally Posted by lodgernz View Post
    http://www.pit-lane.biz/t6246p550-gp...vermars-part-5

    Go to the bottom of page 23. You'll have to login to see the images
    Iam wondering why exhaust pipes are round or sligthly oval.
    The exhust jet during blowdown is some kind of rectangular and it will not be more difficult to edge weld four funny looking strips(methinks)?

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