Whiteline S550 Coilovers

Discussion in 'Mustang S550 General Forums' started by Whiteline Performance, Jan 9, 2018.

  1. Whiteline Performance

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    Ford Mustang GT Coilovers for S550 2015-2018

    Adjustable: Yes
    Camber Adjustable: Only with our adjustable topmounts
    Caster Adjustable: No
    Dampening Adjust Type : Rebound dampening (12 clicks)
    Damper Type: Coilover + Racing springs
    Drop Height Front: 30-60mm
    Drop Height Rear: 30-60mm
    Height Adjustable: Yes
    Spring Rate Front: 80N
    Spring Rate Rear: 50N
    Strut Tops Included: No​


    S550_Coilovers.png
     
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  2. EFI

    EFI Well-Known Member

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    Interesting, in for more deets.
     
  3. NoVaGT

    NoVaGT Well-Known Member

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    #3 NoVaGT, Jan 10, 2018
    Last edited: Jan 10, 2018
    How does it work with adjustable coil-overs?

    Many friends owned sport-bikes that had adjustable suspensions, and whatever adjustments they tried, they just made their bikes handle worse. So how would an end-user know what the sweet-spot would be for their driving needs?
     
  4. Grintch

    Grintch Well-Known Member

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    #4 Grintch, Jan 10, 2018
    Last edited: Jan 10, 2018
    A - start with the recommended settings
    B - learn or don't mess with them

    Hint - setting coilovers to their lowest ride height looks cool, but almost always makes the handling worse.
     
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  5. NoVaGT

    NoVaGT Well-Known Member

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    Rrriiiiiiiiiiiiiiiiiiiiight.......
     
  6. BmacIL

    BmacIL Enginerd

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    Can you please confirm the rates? That's ultra stiff in front and very soft out back, even if it's at the rear shock position.
     
  7. Grintch

    Grintch Well-Known Member

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    Good point. 50N = 443 lb/in or 3 times the stock spring rate.

    Also, given the front camber has no stock adjustment, including camber plates in the package is a very useful plus.
     
  8. BmacIL

    BmacIL Enginerd

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    80 N/mm = 456 lb/in = 2.7x stiffer than stock front
    50 N/mm = 285 lb/in = 2.5x softer than stock rear (if at same spring location)
     
  9. OP
    OP
    Whiteline Performance

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    Stock rear spring sits inboard vs the coilover location is further out towards the wheel. The effective spring rate on the rear matches the front at about 2x stiffer than stock...
     
  10. Competition Orange

    Competition Orange Well-Known Member

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    Is this really how you're trying to sell these things? LOL incredible.
     
  11. BmacIL

    BmacIL Enginerd

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    I think you may want to look at this again. The rear shock location provides a motion ratio of approximately 0.7 versus 0.49 for the stock spring location. Wheel rate = spring rate * (motion ratio)^2. This means that the wheel rate with your spring is 140 lb/in. This is very nearly the same as stock for a GT PP.
     
  12. sigintel

    sigintel Well-Known Member

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    Great to have another option!
    Pricing?
    Materials?
    Design in house?
    Built in house?
    Looking at Roush KW3 or KW3 direct w second set of Steeda Comp springs, how do these compare?

    Uhhh, dont we want the helper on the opposite end?
    So the main/helper interface cant ride the threads?
    Dunno? 315310B2-631D-4580-8B75-3180204DEB34.jpeg
     
  13. OP
    OP
    Whiteline Performance

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    See responses above. We will also be racing the car in the Optima Ultimate Street Car Series this year. We have a full season of Global Time Attack on them through a customers car.
     
  14. sigintel

    sigintel Well-Known Member

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    Tige tank!
    Was looking for equivalent of 320 Front/ 1140 Rear.
     
  15. Static_LV

    Static_LV Well-Known Member

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    Would be interested in seeing accurate spring rates and a shock dyno.
     
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