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V 4 in snowmobile

Discussion in 'General Yamaha Discussion' started by cannondale27, Aug 30, 2020.


  1. cannondale27

    cannondale27 Moderator Staff Member Moderator Vendor Lifetime VIP Member VIP Member

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    Last edited by a moderator: Aug 30, 2020
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  3. MrSled

    MrSled Administrator Staff Member Admin Moderator VIP Member

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  4. 74Nitro

    74Nitro VIP Member VIP Member

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    For sure. One of the benefits is that they naturally balance compared to an in line 4, especially compared to the cross-plane four which Yamaha uses, which also requires counter-balancers that add weight and cost.
    In Motogp, engines rev as high as 16-17000 RPM. KTM, Ducati, Honda and Aprillia all use V4 engines. Yamaha and Suzuki still with the in line 4 and just don't have the top speed power like the rest. I've read it is harder to keep and in-line four balanced at those very high RPM's compared to the V4
    While an in line triple fits very nicely into a sled, the four is a little wider but still not bad. I think a V4 could fit very nicely into a sled.
     
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  5. Tarzan

    Tarzan TY 4 Stroke Guru

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    This is going in a snowmobile. 104936533_3420392884651262_1395717406177660500_o.jpg 101658635_3347822451908306_5876428203471405056_o.jpg 101511175_3347822315241653_8370801117130391552_o.jpg 106129977_3420392897984594_2469022144985204663_o.jpg
     

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  6. MrSled

    MrSled Administrator Staff Member Admin Moderator VIP Member

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  7. kinger

    kinger VIP Member VIP Member

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    Tarzan - What size is that and where is it available? Do you like the balancing effect of a V4 over a inline? Hard to understand when R1 and Apex 4 cyl love to rev to the moon. I do think a V4 sounds amazing though!
     
  8. cannondale27

    cannondale27 Moderator Staff Member Moderator Vendor Lifetime VIP Member VIP Member

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  9. 74Nitro

    74Nitro VIP Member VIP Member

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    Pretty.
    Is that the Suzuki 1100 heads?
     
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  10. ClutchMaster

    ClutchMaster HUGE Member VIP Member

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    Yamaha and Suzuki both still use an inline 4 cylinder. The biggest reason for using the V4 is its width, much narrower, great for a sled application IMO. Olav Aaen had a prototype 2 stroker back in the day, wish I could have actually seen it in person.
    Technically the inline motors are almost always capable of more horsepower due to the fact for every rod bearing there’s a main bearing, instead of two cylinders sharing a journals on the crank. Yea if you have the money for billet engine cases then horsepower isn’t a limitation.

    As for natural balance, they are not naturally balanced. All V-cylinder engines have to be bob weight balanced in order to Achieve a good balance, which arguably creates an unbalance at certain rpm’s. That’s why when you have a V-style engine balanced they ask you what the engine redline is. The only truly natural balanced 4 cylinder is a Boxer, or horizontally opposed motor. Like a Goldwing, BMW, or Porsche/Volkswagen motor.

    But yea we definitely need a turbocharged MotoGP V4 in a snowmobile!!!! If someone has one collecting dust in the garage I’m ready to start fabrication tomorrow.
    :drink:
     
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  11. STAIN

    STAIN Lifetime Member Lifetime VIP Member VIP Member

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    I think that is 2 Suzuki 1100's Siamese together????
     
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  12. 74Nitro

    74Nitro VIP Member VIP Member

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    Yes, In MotoGP Yamaha and Suzuki are using in line fours, but are getting dusted by the all the V-4's, as far as outright power and straight-line speed goes.
     
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  13. 1nc 2000

    1nc 2000 Lifetime Member Lifetime VIP Member VIP Member

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    Hypersports engine made in Wisconsin.

    34964.jpeg
     
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  14. ClutchMaster

    ClutchMaster HUGE Member VIP Member

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    Not a one of those MotoGP bikes could hang with this bike as far as outright power and speed.....
    1438F7CB-A3F8-4351-B146-BCAE6A201626.jpeg
    The fact that it’s a V-block design has nothing to do with horsepower of the engine.
    Like I said inline motors have always inherently by design, been able to hold more power than V-block motors, just sayin.


    Yep, they also make a Hayabusa inline billet block that can handle over 1000hp.
     
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  15. 74Nitro

    74Nitro VIP Member VIP Member

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    The naturally aspirated one liter motoGP bikes are hitting over 220mph, and the longest straights are 1.2kms, or .74 miles.
     
  16. 74Nitro

    74Nitro VIP Member VIP Member

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