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weight of alloys ???

Discussion in 'Motors' started by MaXXeH, 29 Jan 2006.

  1. MaXXeH

    Wise Guy

    Joined: 31 Dec 2002

    Posts: 1,032

    Location: on my PC

    i have been reading other car forums and people wanting light alloys i dont really see why? they are resting on the floor any way so whats diffrence goning it make? it may be a silly question but just got me thinking.
    may some one enlightn me :)
     
  2. Tesla

    Capodecina

    Joined: 19 Jan 2003

    Posts: 17,405

    Location: Bristol, UK

    Well the engine has to turn the alloys, lighter ones are easier to turn. Also the overall weight of the car.

    Same idea applies to lightened fly wheels etc...
     
  3. arcamalpha

    Wise Guy

    Joined: 18 Oct 2002

    Posts: 1,147

    Reducing "unsprung" mass (wheels, tyres, brakes and half the suspension system) helps the suspension work better by reducing enertia and therefore reaction time. Lighter is better so long as the damping is set to match.
     
  4. arcamalpha

    Wise Guy

    Joined: 18 Oct 2002

    Posts: 1,147

    Oh yes, and lighter wheels makes it easier to turn the car as the change in angular momentum is reduced. Same affect as a push bike being more stable when moving than when stationary.
     
  5. MaXXeH

    Wise Guy

    Joined: 31 Dec 2002

    Posts: 1,032

    Location: on my PC

    thanks for info lads :) you clever lot :p