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Thread: 2-strokes in MotoGP?

  1. #31
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    THe Fuel injected stuff will be somewhere here i guess
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    Kinky is using a feather. Perverted is using the whole chicken

  2. #32
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    Or here........
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    Kinky is using a feather. Perverted is using the whole chicken

  3. #33
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    Quote Originally Posted by husaberg View Post
    . . .. I bet they did test Direct, but it gave less power so it wasn't worthwhile for the NSR..
    . . ..
    & I bet they didn't. I am 80% certain it wasn't permitted by the rules.

    The FIM were set to stiffle further development of the 2 stroke as they were going through the throws of the bikes power outweighing the tyres. Hence the incremental increase of minimum weights & keeness to adopt highly toxic unleaded gas.

    And also they were a bunch of short sighted fuckers who were in love with the old days of MV & Norton & decided if you can't beat em, - give the alternative a 2x capacity advantage.

    No direct injection development so no advance in technology & road spinoff hence no appetite to race 2 strokes.
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  4. #34
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    But it could be here I can't be bothered looking....
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    Kinky is using a feather. Perverted is using the whole chicken

  5. #35
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    Quote Originally Posted by F5 Dave View Post
    & I bet they didn't. I am 80% certain it wasn't permitted by the rules.

    The FIM were set to stiffle further development of the 2 stroke as they were going through the throws of the bikes power outweighing the tyres. Hence the incremental increase of minimum weights & keeness to adopt highly toxic unleaded gas.

    And also they were a bunch of short sighted fuckers who were in love with the old days of MV & Norton & decided if you can't beat em, - give the alternative a 2x capacity advantage.

    No direct injection development so no advance in technology & road spinoff hence no appetite to race 2 strokes.
    Dave Dave Dave.

    A corporation the Size of Honda interested in Emissions didn't test direct injection...... Yeah Right

    As you said earlier the Rules well Honda being the Devil well they were only for the other weren't they..........Honda could change the FIM mind at will couldn't they.......
    The orbital project guy Ken posted some stuff on pitlane (same guy that makes the strike pistons) we could ask him i guess he might know.

    Re the Capacity they gave em about 800cc vs 500 but it wasn't enough for a start........

    BTW Bimota Vdue was always going to be direct injection and it was designed as a GP bike from a start so i guess you might be more than 20% wrong....
    Last edited by husaberg; 20th September 2013 at 15:48. Reason: PS i bothered to read the EXP stuff ya wrong dave sorry ya are



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  6. #36
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    Quote Originally Posted by F5 Dave View Post
    No direct injection development so no advance in technology & road spinoff hence no appetite to race 2 strokes.
    What is this road spin-off you speak of? BMW make the best stock superbike and have never competed in MotoGP. Yamaha and Honda are the main players in MotoGP yet have the least technologically advanced bikes in the stock superbike class. The best/most advanced Jap bike is made by Kawasaki, who were the first to leave MotoGP in recent times.

    Moral of the story seems to be if you want to make a decent Superbike either get out or stay out of MotoGP.

  7. #37
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    Still a reasonable read for a friday afternoon. Dooeys 92 is still one of the best looking racebikes ever despite my hatred of ciggys.
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  8. #38
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    Quote Originally Posted by husaberg View Post
    Dave Dave Dave.

    A corporation the Size of Honda interested in Emissions didn't test direct injection...... Yeah Right

    As you said earlier the Rules well Honda being the Devil well they were only for the other weren't they..........Honda could change the FIM mind at will couldn't they.......
    The orbital project guy Ken posted some stuff on pitlane (same guy that makes the strike pistons) we could ask him i guess he might know.

    Re the Capacity they gave em about 800cc vs 500 but it wasn't enough for a start........

    BTW Bimota Vdue was always going to be direct injection and it was designed as a GP bike from a start so i guess you might be more than 20% wrong....
    Actually I thought I had read that was one of the reasons Bimota flagged development of a GP bike because DI wasn't allowed.

    Honda didn't test DI in GPs did they? - no they tested conventional in 2 races (obtaining fastest speed for quite some years).

    Hoda weren't going out of thier way to advance 2 stroke technology were they? They wanted to race 4 strokes, just they couldn't on equal terms (NR500 anyone?)

    Capacity was 990 vs 500 at the start, 800 was some years later well after 2 strokes written out of the rules.
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  9. #39
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    Quote Originally Posted by slowpoke View Post
    What is this road spin-off you speak of? BMW make the best stock superbike and have never competed in MotoGP. Yamaha and Honda are the main players in MotoGP yet have the least technologically advanced bikes in the stock superbike class. The best/most advanced Jap bike is made by Kawasaki, who were the first to leave MotoGP in recent times.

    Moral of the story seems to be if you want to make a decent Superbike either get out or stay out of MotoGP.
    remember Kawasaki has only won one superbike championship , honda and yamaha only seem to think superbikes is a second rate chamionship now days

  10. #40
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    Quote Originally Posted by slowpoke View Post
    What is this road spin-off you speak of? BMW make the best stock superbike and have never competed in MotoGP. Yamaha and Honda are the main players in MotoGP yet have the least technologically advanced bikes in the stock superbike class. The best/most advanced Jap bike is made by Kawasaki, who were the first to leave MotoGP in recent times.

    Moral of the story seems to be if you want to make a decent Superbike either get out or stay out of MotoGP.
    um. . .I struggle to see the relevance of your point. No really. You're talking entirely about diesils in a 2 stroke related thread.

    I was of course talking about the development of the DI 2 stroke. If it was raced there would be development. Its a different technology, not a progression of a roadbike.

    Spin off could have been DI NSR250 et all & potentially larger capacity bikes again once emissions could be reined in which was the stumbling block and why 2 strokes disappeared from the road in diminishing engine sizes. if allowable emmissions for a vehicle is x amount then a 125 spewing 10% out is half the amount of a twin 250.
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  11. #41
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    Quote Originally Posted by F5 Dave View Post
    Actually I thought I had read that was one of the reasons Bimota flagged development of a GP bike because DI wasn't allowed.

    Honda didn't test DI in GPs did they? - no they tested conventional in 2 races (obtaining fastest speed for quite some years).

    Hoda weren't going out of thier way to advance 2 stroke technology were they? They wanted to race 4 strokes, just they couldn't on equal terms (NR500 anyone?)

    Capacity was 990 vs 500 at the start, 800 was some years later well after 2 strokes written out of the rules.
    2 strokes fire twice as much so only fair there twice the size ( face it 2 strokes don't last very long as road bike between rebuilds . so why push a dead duck . think there good as a good performance race bike . off road , road race . not for the road.. just what i think

  12. #42
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    Quote Originally Posted by mr bucketracer View Post
    2 strokes fire twice as much so only fair there twice the size . . .
    Why should you give an advantage to a design that is handicapped by an obvious design flaw? 500cc is 500cc. That is fair.

    And they're finding as dirtbikes the 2 strokes have a better reputation for reliability (although development has improved the latest 4 strokes so they last a bit longer than they did 10 yrs ago).

    2 stroke roadbikes? Well there have been a heap of improvements that they would benefit from. Look at marine engines for reliability.
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  13. #43
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    Quote Originally Posted by F5 Dave View Post
    Why should you give an advantage to a design that is handicapped by an obvious design flaw? 500cc is 500cc. That is fair.
    bring a rotary out then

  14. #44
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    yeah I agree, bring it on.

    . . .Although swept volume debates will continue & the detractors do have their points.
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  15. #45
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    Quote Originally Posted by F5 Dave View Post
    yeah I agree, bring it on.

    . . .Although swept volume debates will continue & the detractors do have their points.
    think is fires 6 + times per revolution somthing like that . anyway my mates 12a race car had 500hp - 250hp if a 600 , just think what top factorys could get from them ?? face it riders could not handle the power anyway

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