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IMSA GTO Chassis Design

Discussion in 'Suspension / Steering' started by Jamezzy, Mar 16, 2012.

  1. Jamezzy

    Jamezzy Well-Known Member Donated!

    I've been thinking for the longest time, how engineers made the suspension for the IMSA GTO Celica or the Super GT, GT500/300 cars in general since they're so low to the ground and the wheel arches are almost or over the hood. I love the look of them and would love to see how they drive. In the future, this is what I'm going for, for my 162 so I'm eager to learn. It could be my daily as well so I would want to adjust the height for driveablility. I would also want to take the car to the track after I get some groceries with it. Maybe grab some barbeque with it on the way and grill them after a good day at the track. Anyway, look at the picture below....

    What is the significance of how the coilovers/dampers angled like that? What if they were angled even more like 25% more or even completely flat like a Ferrari F50's suspension system? I really want to do something like this soon. I want to know. Any input is appreciated.
    [​IMG]
     
  2. Stig

    Stig ST162 Guru Donated!

    What you're talking about is spaceframe chassis design
    The shocks are angled for maximum leverage and adjustability, in this pic the shocks were mounted similar to your pic but we had to move them to improve handling
    [​IMG]
    [​IMG]

    Early open wheelers had the shocks exposed which was good for leverage and access but bad for aerodynamics and damage
    This early 70's Crossle I drove has the old style
    [​IMG]

    Later open wheel cars have the shocks inboard for better aerodynamics and protection and used links/levers to transfer the loads.
    This 80's Royale I drove was an early example but later the shocks moved inward and were mounted horizontally to make more legroom and reduce frontal area
    [​IMG]
     
    Last edited: Mar 16, 2012
  3. Jamezzy

    Jamezzy Well-Known Member Donated!

    Interesting. So ideally, cars that have angled shocks is for maximum performance? So there are more pros to having angled shocks than there are for the common ones we see in cars. Is there a particular way to mount them wrong? Like say angled too much or could there be an ideal angle?
     
    Last edited: Mar 18, 2012
  4. jwagner162

    jwagner162 Well-Known Member Donated!

    poblem is what would you mount them to? note how far back the engine has been placed (I know thats not the imsa but...). the imsa was also rwd so youd gain some room in the bay from turning the motor 90deg.

    dont worry my fantasy build consists of either a 7m or 2uz jammed in and set way to the back, rwd with the trans @ the rear diff.
     
  5. Jamezzy

    Jamezzy Well-Known Member Donated!

    Well since the IMSA is wider, wouldn't that clear some room for the engine? Maybe some really good innovation and calculation as to how the headers, pipes, etc for some clearance?

    My fantasy build consist of wide IMSA space Frame chassis and mid engine placement with 4WD for the 4th gens Celicas:D
     
  6. racerb

    racerb Well-Known Member

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