View Poll Results: you keen to race in this class

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  • yes

    68 54.40%
  • no

    41 32.80%
  • not sure

    16 12.80%
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Thread: Street Stock 250cc 4-stroke twins

  1. #271
    Join Date
    26th May 2008 - 17:57
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    '05 Firestorm
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    Quote Originally Posted by rachprice View Post
    Oh dear....why do I even bother
    Cause it keeps us lurkers entertained

  2. #272
    Join Date
    16th December 2008 - 20:24
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    wr250yz 2001
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    mackay
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    Quote Originally Posted by rachprice View Post
    Good comeback buddy

    Couldnt be bothered adding fuel...adding the same amount of fuel will add the same amount of weight right?
    There are a lot of variables...including amount of fuel and rider weight
    But I was doing a purely mathematical equation, without factoring in those variables

    Plus was just pointing out how wrong your HP values were....
    well i am running 36 hp at 170 kgs fully wet, thoughs are correct. Remember i'v made some modifications to my bike and therefore it is ALOT lighter than the stock hyosung.

    Quote Originally Posted by ducatilover View Post
    Oh so you are also wrong. Your bike fully wet will be around 190-200kg. with 25hp at the wheel.
    no i got the hp/weight wrong 150 has more
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  3. #273
    Join Date
    26th February 2008 - 20:41
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    1990 Honda VFR400/1979 Suzuki RM125
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    Levin/Welly
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    Quote Originally Posted by chaos rider View Post
    well i am running 36 hp at 170 kgs fully wet, thoughs are correct. Remember i'v made some modifications to my bike and therefore it is ALOT lighter than the stock hyosung.



    no i got the hp/weight wrong 150 has more
    Where did you get 36HP from? have you dyno-ed it?
    Why is yours so much more than the factory?
    Howare you going to race it in streetstock class?

    How much lighter? 15kg??

  4. #274
    Join Date
    26th May 2008 - 17:57
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    '05 Firestorm
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    Hyosung claim a dry weight of 168 (Aus website) or 377lb ( 171 kg, US website). So I think 170kg wet is a fair estimate. US model has 27hp and 16.7lb/ft. So what mods have you done to get to 36hp?

  5. #275
    Join Date
    26th February 2008 - 20:41
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    Quote Originally Posted by cheesemethod View Post
    Hyosung claim a dry weight of 168 (Aus website) or 377lb ( 171 kg, US website). So I think 170kg wet is a fair estimate. US model has 27hp and 16.7lb/ft. So what mods have you done to get to 36hp?
    Yeah but 17l of fuel plus oil!

  6. #276
    Join Date
    26th May 2008 - 17:57
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    Ah, I just read that properly again. Ok, so 17L petrol is aprox. 12.6kg, plus I would be guessing about 2 or 3 kg for oil?

    So to get 170 wet you'd have to take about 15kg ish off the bike. Hard to say if that's achievable or not.

  7. #277
    Join Date
    9th October 2008 - 15:52
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    Quote Originally Posted by rachprice View Post
    Yeah but 17l of fuel plus oil!
    I can understand 170ish wet as you race with 5litres of fuel etc but 36hp from can and jets seems far fetched if it wants to be within the rules.
    The 27 claimed would be at the crank also.
    36hp is what you would expect from inline 4cylinder at rear wheel with the same mods.
    Need to see this bike in action soon.
    Its gunna need gpra10 tyres.All this budget tyre stuff is not going to help if he wants to win races in his first event.
    Would suspect those sung forks will need some internal tweeks.Think that is alowed also in this class by the look of it.

  8. #278
    Join Date
    26th February 2008 - 20:41
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    Quote Originally Posted by mossy1200 View Post
    I can understand 170ish wet as you race with 5litres of fuel etc but 36hp from can and jets seems far fetched if it wants to be within the rules.
    The 27 claimed would be at the crank also.
    36hp is what you would expect from inline 4cylinder at rear wheel with the same mods.
    Need to see this bike in action soon.
    Its gunna need gpra10 tyres.All this budget tyre stuff is not going to help if he wants to win races in his first event.
    Would suspect those sung forks will need some internal tweeks.Think that is alowed also in this class by the look of it.
    Yeah I just assumed that because he said 'fully' wet

  9. #279
    Join Date
    26th May 2005 - 20:09
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    Prolight 250,XR4hundy
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    Murch....
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    Spadas according to the manual, are 153kg dry....havnt been able to find a hp figure yet....but are hoping to get another 5-7kg off it.
    Anyone used Bridgestone 003R's ? Got one on da front & a 090r on the rear...
    The Heart is the drum keeping time for everyone....

  10. #280
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    17th April 2006 - 05:39
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    Quote Originally Posted by cheesemethod View Post
    . Ok, so 17L petrol is aprox. 12.6kg, .
    Petrol is basically 1kg a litre

  11. #281
    Join Date
    26th May 2008 - 17:57
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    Petrol is less dense than water, water is 1kg/L approx. Avgas is about .72kg/L, petrol is about .74kg/L.

  12. #282
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    18th September 2007 - 12:14
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    VFR400, ZX9R, GSXR750, ZXR750, TRX850
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    Pretty sure rachprice's VFR dry could beat the Hyo anyway, Hyo would break itself before the first lap and Rach can push her VFR around

    Not to mention how such a 'modified' Hyo could run in street 'stock' in the first place.

  13. #283
    Join Date
    23rd April 2004 - 19:16
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    Quote Originally Posted by Ragingrob View Post
    Pretty sure rachprice's VFR dry could beat the Hyo anyway, Hyo would break itself before the first lap and Rach can push her VFR around

    Not to mention how such a 'modified' Hyo could run in street 'stock' in the first place.
    Haha, I'd like to see that. Even if its just to see Rach in her leathers!
    KiwiBitcher
    where opinion holds more weight than fact.

    It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.

  14. #284
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    18th September 2007 - 12:14
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    Quote Originally Posted by R6_kid View Post
    Haha, I'd like to see that. Even if its just to see Rach in her leathers!
    It'd get pretty hot pretty quickly for her in leathers in the sun though, we all know what that means!

    Well what the song says anyway

  15. #285
    Join Date
    11th July 2008 - 21:37
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    CBR125R RACE BIKE
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    auckland
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    36hp from a hyobag......yeah right!!!!

    Even if you put a new exhaust on, new carbs and a set of race cams....which i doubt you've put on....you'd still be putting out less than 35hp....
    chuck norris's calender goes from march 31st to april 2nd

    No one fools chuck norris.......

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