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Thread: The battle continues! Busa v ZX14

  1. #16
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    Quote Originally Posted by kiwifruit View Post
    The busa I rode was derestricted. Redline in top is around 345 on the speedo (hard to tell, it's past the last number by a fair way). Do all the sums you like, it's not going to do 300+ without serious mods (lowering + NOS / Forced induction)
    Shirley, if it is geared to do 324km/h at 11,000rpm then it must be unless the tachometer is also over reading?

    Two Wheels Australia got the original up to 311km/h on Avalon airfield as a true top speed.
    You don't get to be an old dog without learning a few tricks.
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  2. #17
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    Quote Originally Posted by Edbear View Post
    Shirley, if it is geared to do 324km/h at 11,000rpm then it must be unless the tachometer is also over reading?

    Two Wheels Australia got the original up to 311km/h on Avalon airfield as a true top speed.
    R6 was well documented to have an over reading tacho. Tach and speedo are probably exactly the same units behind the dials, just set to read different pulses. So could, perhaps, be be out by the same percentage?
    Do us all a favour, by bringing yourself up to speed, before pulling onto the motorway.

  3. #18
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    Quote Originally Posted by manxkiwi View Post
    R6 was well documented to have an over reading tacho. Tach and speedo are probably exactly the same units behind the dials, just set to read different pulses. So could, perhaps, be be out by the same percentage?
    I'll see if I can find out. The original Busa had 175hp to achieve that speed whereas the latest have 197hp so it makes sense seeing as another Aussie mag got 320km/h by removing mirrors and tweaking the engine to 200hp.
    You don't get to be an old dog without learning a few tricks.
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  4. #19
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    Quote Originally Posted by kiwifruit View Post
    The busa I rode was derestricted. Redline in top is around 345 on the speedo (hard to tell, it's past the last number by a fair way). Do all the sums you like, it's not going to do 300+ without serious mods (lowering + NOS / Forced induction)
    On the video, both bikes showed 11,000rpm and same top speed suggesting similar gearing. Would both bikes have their rev counters out by the same?
    You don't get to be an old dog without learning a few tricks.
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  5. #20
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    I have seen a hayabusa do an actual not indicated 324kph, but it did have a massive blue bottle on the side of it.

    And that gearing commander site it pretty fucken useless if you are dumb enough to think that putting a 36 tooth frot sprocket and a 12 tooth rear sprocket is going to make you busa do 756kph.

  6. #21
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    An undertail kit will also boost the top speed a little bit, gets rid of the horrible mudflap, rear indicators and number plate setup which just acts like a parachute behind the bike. Aledged 20kph onto the top speed. I heard on the grape vine that you can actually lose a few km off the top speed by removing the mirrors. Also seen dyno testing on other vehicles where an aftermarket filter actually recorded a 1.5 to 4hp loss.

    Rider weight would also be something to consider. im sure a 65kg Thai guy would go faster than your average 90kg kiwibloke

  7. #22
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    Quote Originally Posted by nodrog View Post
    I have seen a hayabusa do an actual not indicated 324kph, but it did have a massive blue bottle on the side of it.

    And that gearing commander site it pretty fucken useless if you are dumb enough to think that putting a 36 tooth frot sprocket and a 12 tooth rear sprocket is going to make you busa do 756kph.
    P/t?

    Theoretical of course... It is a calculator, not a test track.
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  8. #23
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    Probably a tool best left to those that actually ride motorcycles.

  9. #24
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    Quote Originally Posted by imdying View Post
    Probably a tool best left to those that actually ride motorcycles.
    You don't get to be an old dog without learning a few tricks.
    Shorai Powersports batteries are very trick!

  10. #25
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    A site for all New Zealand Motorcyclists.... not wannabes that are only here to hawk their wares

  11. #26
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    Quote Originally Posted by imdying View Post
    A site for all New Zealand Motorcyclists.... not wannabes that are only here to hawk their wares
    ....
    You don't get to be an old dog without learning a few tricks.
    Shorai Powersports batteries are very trick!

  12. #27
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    I like the new ZX14R - looks a lot cleaner, is lighter than the old one with a bigger motor & apparently handles really well. The current Busa looks like someone left the old one under a heat lamp - doesn't look to comfortable either. Both have enormous amounts of power - the current 14 perhaps slightly more than the Busa (stock) At $20k otr, the 14 would be my choice.
    “- He felt that his whole life was some kind of dream and he sometimes wondered whose it was and whether they were enjoying it.”

  13. #28
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    Quote Originally Posted by SPman View Post
    I like the new ZX14R - looks a lot cleaner, is lighter than the old one with a bigger motor & apparently handles really well. The current Busa looks like someone left the old one under a heat lamp - doesn't look to comfortable either. Both have enormous amounts of power - the current 14 perhaps slightly more than the Busa (stock) At $20k otr, the 14 would be my choice.
    LOL! I do like the Busa's style, though of course individual tastes vary. I feel the 14's front looks too big, but having seen one in the metal, it's not as bad as pics suggest.

    Both bikes have their merits and both have dedicated owners who wouldn't consider the other. I tend to judge each bike on its merits rather than by brand.
    You don't get to be an old dog without learning a few tricks.
    Shorai Powersports batteries are very trick!

  14. #29
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    Quote Originally Posted by The Reibz View Post
    An undertail kit will also boost the top speed a little bit, gets rid of the horrible mudflap, rear indicators and number plate setup which just acts like a parachute behind the bike. Aledged 20kph onto the top speed. I heard on the grape vine that you can actually lose a few km off the top speed by removing the mirrors. Also seen dyno testing on other vehicles where an aftermarket filter actually recorded a 1.5 to 4hp loss.

    Rider weight would also be something to consider. im sure a 65kg Thai guy would go faster than your average 90kg kiwibloke
    With this power, I doubt it would make a measurable difference. These bikes will pull anything to ridiculous speeds in the blink of an eye!
    You don't get to be an old dog without learning a few tricks.
    Shorai Powersports batteries are very trick!

  15. #30
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    Quote Originally Posted by nodrog View Post
    And that gearing commander site it pretty fucken useless if you are dumb enough to think that putting a 36 tooth frot sprocket and a 12 tooth rear sprocket is going to make you busa do 756kph.
    Actually, with that gearing it'd do 2322.4km/h if you could get it to redline in top gear.

    Might need a bit of a hill. And maybe a tailwind.

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