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Homework Help: Help sports car systems

  1. Nov 22, 2009 #1
    URGENT Help!!! sports car systems

    A new sports car has the following specifications and performance when fitted with 1 1.8 litre, 4 cylinder, 16 valve double overhead cam , turbocharged engine.

    Maximum Power: 190bhp at 7800rpm
    Max Speed : 140mph (level road, still air)
    Mass = 1200kg
    Chassis dimensions (approx): 1.7 x 1.4 x 4.2m (width x length x height)
    Coefficent of drag for the vehicle is 0.34
    Sea level air density is 1.2kg/m3

    why it is important that it has 16 valves and what purpose do they serve and could their number be decresed?

  2. jcsd
  3. Nov 22, 2009 #2


    Staff: Mentor

    Re: URGENT Help!!! sports car systems

    Do you understand the purpose of valves in a four-cycle internal combustion engine?
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