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  1. #16
    Newbie
    Posts
    6
    I am a collision investigater with Thames Vally Police in the UK and I am dealing with a crash involving a Hayabusa. The engine oil was spilt over the road and I am trying to establish if it could have been at such a temperature to melt the bitumen in the road. This could prove that the motorcyclist was on his correct side of the road when the crash happened.

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  3. #17
    Lost but forgotten

    My Bike(s)
    2012 Ninja 1000 ABS, 2002 Bandit 1200 S, 2002 Honda XR50R, 1992 Honda CR125R
    Location
    St. Cloud, MN, USA
    Posts
    20,861
    That's a tough one. My bike's oil varies between 80 and 110*C, but it's air cooled. Most liquid cooled bikes don't have oil temp gauges. Not many 'Busa owners here. You might have better luck here.
    'Busa shock, Racetech forks, Holeshot stage 1 & pipe, Hella headlights, CBRXX clipons, Givi E360 & V46, Zumo 550, Pilot Road 2CTs | Symtec grip heat
    Arai Signet GTR | Joe Rocket Meteor boots, Alter Ego pants, jacket
    | Gerbings liner | Alpinestars SP-1 gloves | Hanes boxer-briefs
    Gems for motorcyclists

  4. #18
    Newbie
    Location
    DFW Tx
    Posts
    20
    after riding 47k on my 2000 model, never even thought about it..

    Even the guys running turbos, some remove their coolers all together and have no problems, at all.

    if you really must know, I could find out.

    peace,
    Busafied

  5. #19
    Sprocket Pilot
    My Bike(s)
    2004 Hayabusa
    Location
    Tokyo, Japan
    Posts
    841
    The other option (and probably better for court) would be to reconstruct the event.

    Get a Hayabusa with similar mods, have it ridden so the oil is at operating temperature, drain some off and apply it to bitumen in the same section of road under the same weather conditions. Or something like that.

    There are so many variables though. How hard was the bike being ridden, (i.e. was the 'Busa rider cruising along in third gear on an open road or was he trying to set a land speed record)?

    Post crash, how long before the oil made it onto the road, (i.e. did it sit in a slightly cracked engine case and seep out as the engine cooled or was it ejaculated at it's highest temperature during the crash)?

    [Beavis....heh heh heh...he said ejaculated...heh heh heh...]

    You're probably going to get further concentrating on tire skidmarks and other marks left on the surfaces involved.

    It's interesting. Please keep us posted.

    I was recently riding with an acquaintance who got taken out by a scooter-Nazi. The engine case on his X-11 cracked and oil seeped out within a few minutes. It didn't melt the Tokyo asphalt beneath it.

    I'd guess the X-11 and Hayabusa, being ridden together, would be operating at oil temps consistent with each other. Just a guess.
    Meddle not in the affairs of dragons...for you are crunchy and taste good with ketchup.

  6. #20
    Newbie
    Posts
    6
    Like you have said, there are so many variables, it is a very difficult one to start with. I have tried for several weeks searching the internet with every search engine I could find to try and get some idea (or even a range) of the oil temperature. I have not even got close !!!!

    The best I have managed is to find an oil expert who has worked with the Honda, Suzuki, Kawasaki and Ducati race teams and can say that generally, motorcycles will run at les than 100 degrees C.

    The circumstances are a moderately warm evening with an average size rider and an average size pillion. From what I can gather, they had only travelled about 4 miles before the collision and all of that was in a residential area.

    The rider claims that when he collided with the car, it split the offside crank case and the oil sensor valve came out, so the oil would have been ejected from the engine under pressure.

    I have carried out a test on the road surface with semi synthetic 10W-40 heated to 105 degree C and it had not effect on the bitumen at all.

    So that's where I have got to, but I could really do with knowing the temperature of the oil. It would make life a whole lot easier for me when I am standing up in court giving evidence.

    Stuart.


 

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