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Thread: ESE's works engine tuner

  1. #21511
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    2nd April 2012 - 00:54
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    Aprilia GP 125 & 250, 91 & 92 models
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    Australia
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    Wobbly, the power jet on the Keihin ? Is that an on / off or a pulsed type pj

  2. #21512
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    12th February 2004 - 10:29
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    bucket FZR/MB100
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    Henderson, Waitakere
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    Quote Originally Posted by wobbly View Post
    If its 50 ohms you have a straight line ignition off a KZ2, useless - if its 200 ohms then you have around 7* retard, still useless.
    Wobbly - telling it like it is since ages ago

  3. #21513
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    12th May 2011 - 23:52
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    razor scooter(pink)
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    Quote Originally Posted by Makr View Post
    There is Elmirage dry lake bed in California, and that is maybe the future for me. There are some events run on air strips, but they are about the same time as salt events.

    The reason those records on the salt flats are so cherished is you have one tiny window of opportunity and everything has to go perfect. It very rarely does...
    Ain't that the truth,in Australia we don't see as high speeds as Wendover or El Mirage as Lake Gardiner is actually at sea level. The high baro and 45+ deg temps makes the air "thick" and "sticky".
    Its like drag racing in all looks easy on tv but a lot more difficult when your out there.

  4. #21514
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    8th February 2007 - 20:42
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    The Keihin that came off the Honda RS125/250 has a PJ solenoid with a Viton tip.
    It is the same as was used by the later Aprilia - it had pwm control,the Honda just used an on/off from the ECU.
    The part is the same as is used I believe in a Fiat Uno and several other carbs as an idle air controller.

    And re the PVL ignitions.
    The analogue black box stator and coils are used by the thousand in KZ2 kart engines, so most are a straight line as mandated by the CIK.
    Other stators have higher resistance ie more,thinner wire, and this gives a little more retard curve with no electronics involved.
    You can buy stators for a Banshee that have the max amount of wire in the coils, so they will start with only minimal kickstart turns.
    These are cloth covered coils ( called 5000 wind ), but even they only retard about 10* from 2000 to 10,000 - again pretty useless compared to the amounts of retard
    and the curve shape we use now in a cheap Ignitech setup.
    PVL make digital, red coils,and there are a few good versions of these, but 15 years ago you paid E500 to have one programmed for you - yea right,no thanks.
    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.

  5. #21515
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    17th October 2011 - 23:07
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    Kawasaki KR150 2007
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    Jakarta, Indonesia
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    ryger

    Some news about Ryger from Luc's FB
    Click image for larger version. 

Name:	rygerhomologation.jpg 
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ID:	318961

  6. #21516
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    16th September 2015 - 06:10
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    Harley SShovelhead
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    USA
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    Ryger

    Quote Originally Posted by pugs View Post
    Some news about Ryger from Luc's FB
    Click image for larger version. 

Name:	rygerhomologation.jpg 
Views:	250 
Size:	71.0 KB 
ID:	318961
    Will be interesting to see if the kart version is the 56-58 HP version or the 70 HP version. Guessing the former. Maybe those that know are free to confirm one way or another ?

  7. #21517
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    4th June 2013 - 10:03
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    2010, specialised bike
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    United Kingdom
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    Quote Originally Posted by MotleyCrue View Post
    Will be interesting to see if the kart version is the 56-58 HP version or the 70 HP version. Guessing the former. Maybe those that know are free to confirm one way or another ?
    Where did they announce 56-58 HP version?

  8. #21518
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    16th September 2015 - 06:10
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    Quote Originally Posted by tjbw View Post
    Where did they announce 56-58 HP version?
    That was the power of the clean fuel efficient Ryger engine a couple years ago before the unanticipated discovery of how to make 70 HP with it. No other engine mfg. is going to make 70 HP, so unless the Ryger makes 56-58 HP (and saves the 70 HP for another day) why would the other engine mfgs. even bother with it all. Its possible the 70 HP version still needs some R&D before release for mass public consumption.

  9. #21519
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    8th February 2007 - 20:42
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    I have just this moment checked the CIK homologation area on the website.
    None of the papers have been posted yet, including the 13 pages of Ryger we all want to see.
    The NZ Kartsport Admin Manager has just sent a request to the CIK asking for confirmation of when this will happen.
    As I believe all the 50 Rygers that had to be presented to the CIK for the homologation process have all been presold,no one
    can race one until they can present the full papers to the Tech Officers after the meeting.

    The best I can do with a KZ10B TM125 kart engine is 48.3 Hp at the sprocket - and the power curve is good enough to blitz genuine
    TecSav leased World Cup winning engines.
    If the Ryger has 58 in CIK form, then no one stands a chance.
    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.

  10. #21520
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    22nd December 2014 - 12:30
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    prototipo
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    New Zealand
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    22
    Ok Frits. Patent is in. Spill the beans....


  11. #21521
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    9th June 2012 - 18:32
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    Quote Originally Posted by wobbly View Post
    I have just this moment checked the CIK homologation area on the website.
    None of the papers have been posted yet, including the 13 pages of Ryger we all want to see.
    The NZ Kartsport Admin Manager has just sent a request to the CIK asking for confirmation of when this will happen.
    As I believe all the 50 Rygers that had to be presented to the CIK for the homologation process have all been presold,no one
    can race one until they can present the full papers to the Tech Officers after the meeting.

    The best I can do with a KZ10B TM125 kart engine is 48.3 Hp at the sprocket - and the power curve is good enough to blitz genuine
    TecSav leased World Cup winning engines.
    If the Ryger has 58 in CIK form, then no one stands a chance.
    You do realize the word blitz means to thrash convincingly any other competitor?

    I think the words you need are "compete well against"...

  12. #21522
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    22nd December 2014 - 12:30
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    prototipo
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    Quote Originally Posted by Makr View Post
    Thank you. The inside is 6061 and the outside is 2024.

    I have made them out of a bunch of different alloys. You know, just to see.haha!

    These were 7068, I think. They didn't last one hard pull.
    Very interesting results and it's great to see someone's had a go and succeeded.
    I deduced and have had confirmed that Woessner are using Alloy 2618, and Flettner can probably confirm it's used in the aero industry too.
    I tried to buy some last year but it is cheaper to buy an entire length than a small piece or two, and shipping to NZ from UK supplier was too much $ so I commissioned Woessner.

    Have you approximated the barrel and ovality in your machining? They are Milled and not turned on something like the Integrex?

    Thank you for sharing !!!!

  13. #21523
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    5th January 2013 - 13:23
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    USA
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    68

    Ryger


  14. #21524
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    8th February 2007 - 20:42
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    Interesting view of relative performance.
    In Europe or World Cup racing for KZ2 the top 3 places in qualifying are separated regularly by less than 1/10 of a second.
    In 20013 and 2014 we won the Nationals going away by at least the length of the main straight against a TecSav leased engine.
    In 2015 we qualified close to 4/10 fastest ( at the PN track by the way ),then a team member left undone a radiator hose clip,thus the engine all but fried with no water,
    and was way slow afterward due to no ring tension.
    We finished second by about 5 kart lengths after 25 laps ( starting off the back ) and still broke the lap record for KZ2.
    Is that close to a blitz?
    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.

  15. #21525
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    9th June 2012 - 18:32
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    Bucket Sidecar
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    Quote Originally Posted by wobbly View Post
    Interesting view of relative performance.
    In Europe or World Cup racing for KZ2 the top 3 places in qualifying are separated regularly by less than 1/10 of a second.
    In 20013 and 2014 we won the Nationals going away by at least the length of the main straight against a TecSav leased engine.
    In 2015 we qualified close to 4/10 fastest ( at the PN track by the way ),then a team member left undone a radiator hose clip,thus the engine all but fried with no water,
    and was way slow afterward due to no ring tension.
    We finished second by about 5 kart lengths after 25 laps ( starting off the back ) and still broke the lap record for KZ2.
    Is that close to a blitz?
    In 1999 we won our first sidecar title by half the length of the main straight at Taupo, that was a close finish after 20 (or it may have been 30 laps), the lead changed 2 to 3 times every lap until 2 laps to go. A mistake on our part in a corner or a partial breakdown or loss of power would have spelt disaster, things happen so fast on a track.

    The next year in the wet we lapped every other rider, that was a blitz.

    Nathaniel Diprose tends to win his races by up to a lap if he does not have a problem, I consider he blitzs his rivals at the moment.

    No, I don't consider the wins you describe as a blitz.

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