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Drag Racing Heathcote drags.

Discussion in 'Motorcycle Racing and Track Days' started by jmw76, May 22, 2022.

  1. jmw76

    jmw76 Well-Known Member

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    I attended the drags at Heathcote Park yesterday along with @Frankster

    An interesting day. A large crowd.
    I am not a massive fan of drags and burn outs but it was awesome to watch and here the top fuel machinery. back at HPR for some side by side racing for the first time in 30years.
     
  2. jmw76

    jmw76 Well-Known Member

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    Some pics from the event. Sorry, no 250s.

    IMG20220521165729.jpg IMG20220521164538.jpg IMG20220521133310.jpg
     
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  3. jmw76

    jmw76 Well-Known Member

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    More pics.

    IMG20220521133256.jpg IMG20220521171059.jpg IMG20220521171059.jpg IMG20220521131115.jpg IMG20220521131024.jpg
     
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  4. jmw76

    jmw76 Well-Known Member

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    IMG20220521130740.jpg IMG20220521130807.jpg On display only. Not running. V12 Merlin powered.
     
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  5. jmw76

    jmw76 Well-Known Member

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    IMG20220521164742.jpg IMG20220521154125.jpg IMG20220521125359.jpg Last few.
     
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  6. Frankster

    Frankster NFI Staff Member Premium Member Ride and Events Crew

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    Thanks for your company yesterday @jmw76. Good variety of pics. We need to get you and your CBR250R at one of the next bikes only meetings! I only took a few pics of the Modified bikes racing yesterday.

    I wasn't sure I'd ever see a TF car or bike go down the track at HPR ever again, but hats off to the new owner (Lance) for his vision, tenacity and success. Lots of teething issues to sort out, but nothing that can't be resolved or fine tuned. TF cars running 4.0sec times this (Sunday) morning, so a 3.something will happen at some stage today. TF cars and bikes are only running to 1,000ft (300m) at this event.

    Bikes 1.JPG Bikes 2.JPG Bikes 3.JPG
     
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  7. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    That nitrovoodoo makes our little 250 draggers look like a fart in a bottle :cool:

    Definately need a trip or 2 there .... to race but to see the top fuellers and TF bikes also

    great photos fellas :thumb_ups:
     
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  8. Frankster

    Frankster NFI Staff Member Premium Member Ride and Events Crew

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  9. jmw76

    jmw76 Well-Known Member

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    A few more detail pics of NitroVooDoo.
    IMG20220521132340.jpg IMG20220521132233.jpg IMG20220521131804.jpg IMG20220521131752.jpg IMG20220521164516.jpg
     
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  10. jmw76

    jmw76 Well-Known Member

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    Some interesting observations about the design of Nitro VooDoo:
    1) Note the welded bar on the throttle tube, presumably for better throttle control
    2) Strange little stubs on the exhaust pipes. These appear to be closed and facing the rear wheel. Not sure what these are for.
    3) A preference for sizable coils and conventional plug leads rather than COP.
    4) Extremely stiff looking rear end.
    5) Carbon rear brake
    6) Twin fuel injectors for each cylinder. One each side of the intake cam. These appear to squirt onto the back of the intake valve.
    7) Engine breathers??? well behind the back wheel, mounted on the wheelie bars.
     
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  11. Frankster

    Frankster NFI Staff Member Premium Member Ride and Events Crew

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    Posted by the HPR owner...YT drone and terrestrial video from the weekend. The HPR owner also wrote a lovely statement on the HPR facebook page. No matter what you think of people, you have acknowledge when their commitment and tenacity is this strong. Good job Lance and the HPR family.



    upload_2022-5-26_15-27-36.png

    Bike only show scheduled for the 18th of June. Hopefully a few of the NSW 2fiftycc crew might wander down for a skid or two? There's plenty of camping around the track.

    upload_2022-5-26_15-31-30.png
     
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  12. Jo Verhelst

    Jo Verhelst Forty2 Premium Member Contributing Member

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    pure petrolhead porn, keep it coming please :Drool:
     
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  13. Frankster

    Frankster NFI Staff Member Premium Member Ride and Events Crew

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    Here's some more for you @Jo Verhelst. From the same weekend.

     
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  14. Frankster

    Frankster NFI Staff Member Premium Member Ride and Events Crew

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    HPR has scheduled several 'Bike Mayhem' meetings over the next 6 months...

    18th June 2022
    20th August 2022
    28th January 2023

    They've even scheduled a weekend of Nostalgia Drag Racing on the 10/11 of September! I'll have to try and get the Bitza 250 back together and running right for a bit of fun. Not sure it will be a good 1/4 mile bike.

    286022770_2844051912565364_5554973281474529489_n.jpg

    The Bitza250

    Bitza250.JPG
     
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  15. jmw76

    jmw76 Well-Known Member

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    Back at Heathcote yesterday with @Frankster for the Bike Mayhem event. A lot smaller scale than the Top Fuel event but still a reasonable number of competitors and spectators for a bike only event.
    I think there were about 36 competitors for the elimination style competition in the afternoon and possibly up to double that for the test and tune in the morning.
    The weather was just perfect and the track pretty good too.
    Being a bit of newb to this type of motorsport, I am still a bit unfamiliar with the general format, but in a nutshell here is how the day went.
    The morning was used for test & tune were you get to practise side by side passes over the 1/4 mile. You just line up and have a go (after paying the appropriate fees and passing scrutineering). If you were well organised you effectively got up to 4 or so practise runs to sort out machine and brain.
    @Frankster bike looked great. To quote my daughter, it looks pretty. Now, hopefully looks will translate into speed.
    The day got off to a cracking start with a first up run in about 8.5s on a nicely prepared supercharged Suzuki 1340 powered custom drag bike.
     
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  16. jmw76

    jmw76 Well-Known Member

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    IMG20220618112254.jpg IMG20220618114909.jpg IMG20220618121022.jpg
     
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  17. jmw76

    jmw76 Well-Known Member

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    @Frankster had made a few improvements? since being out last time which was getting on to 2 years ago. This changed the characteristics of the bike and was taking some time for @Frankster to master during practice. Minimal flywheel mass, some changes to the gearing and a rebuilt clutch was proving to be a bit difficult to master off the line. With a lot of time being lost at the start during practise.
    There were no other 250s in sight. Most other bikes were considerably faster than the little Kwaka over the quarter.
     
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  18. jmw76

    jmw76 Well-Known Member

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    IMG20220618122317a.jpg IMG20220618122657a.jpg IMG20220618123829.jpg IMG20220618135352.jpg IMG20220618135343.jpg
     
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  19. jmw76

    jmw76 Well-Known Member

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    The format for the afternoon was a handicapped competition.
    Each competitor nominates their expected 1/4 mile time (dialled in time) and they aim to be as close as possible to this time through out the day.
    If you better your time over a run, this is termed a "break out" and results in you loosing that run.
    The start time for each lane (2 lane format) is decided based on the difference in "dialled in times", with the faster rider being held back to make up the difference in times.
    In theory, if both riders run their nominated time, both riders should cross the finish line at the same time.
    If a rider goes early (before the green light for their lane) then this results in an instant loss for that run and is signalled by a red light on the count down tree.
     
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  20. jmw76

    jmw76 Well-Known Member

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    The initial pairing for the dialled in runs is decided with a simple ballot process where you draw numbered, coloured chips from a bucket. With like numbers being your pairing for the first run. The winner of each run is paired against other winners and the process continues until a final winner of the event is determined. Based on the number of entries, this was expected to be a process of several hours.
     
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    Last edited: Jun 19, 2022

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