GT350R Springs for GT (high rate, minimum lowering)

Discussion in 'Suspension, Brakes & Chassis' started by valentinoamoro, Oct 12, 2016.

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  1. BmacIL

    BmacIL Enginerd

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    It's both. The front of the R sits approx 1" lower than the GT350, half from the tire sidewall, half from the springs.
     
  2. EFI

    EFI Well-Known Member

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    Can anyone confirm the exact part numbers for the R springs? There's a bunch of different ones and prices, none ending in M however. And the rears don't differentiate between left and right. springs.png
     
  3. Optimum Performance

    Optimum Performance Well-Known Member
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    Front: FR3Z5310M
    Rear Left: FR3Z5560T (Now X Suffix)
     
  4. BmacIL

    BmacIL Enginerd

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    These are the ones.

    Food for thought: the BMR SP083 (rev C) handling springs are about the same price for a set of four. The rates are very similar, with a tad more drop. They used to be further apart in those attributes but with the Rev C, they're a great choice for handling rates without too much lowering. The R springs are also amazing.
     
  5. Bahndvr

    Bahndvr Roushcharged

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    The R springs are amazing and when mated up with the Steeda Pro-Action fixed dampers it's awesome.
     
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  6. Myshelby3425

    Myshelby3425 Well-Known Member

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    Bmacil what rear springs do you recommend if I’m going with R springs and steeda fixed shocks if I’m running the R front 34mm sway and rear R 24mm sway?
     
  7. BmacIL

    BmacIL Enginerd

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    Probably R rears also. FR3Z-5560-X (or FR3Z-5560-T).
     
  8. Myshelby3425

    Myshelby3425 Well-Known Member

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    Would the sp088 rear be too soft?
     
  9. BmacIL

    BmacIL Enginerd

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    #509 BmacIL, Jun 25, 2018
    Last edited: Jun 25, 2018
    IMO yes. The car would understeer. If you're not tracking it, then it'd be fine and would ride quite nice, though.

    Edit: wait, you have a GT350? If so, you need the left and right rear springs, not just two of the lefts. Right side is FR3Z-5560-W (or FR3Z-5560-P). SP088 would not work, but talk with Kelly [MENTION=9985]BMR Tech[/MENTION] about his Magneride springs. Even if you don't have Magneride they'd be excellent. Give him a call.
     
  10. Myshelby3425

    Myshelby3425 Well-Known Member

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    Yea no tracking. It’s a daily with occasional drag days. I only get brave on curves when coming on and off the expressway, lol.
     
  11. BmacIL

    BmacIL Enginerd

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    See edit ^^^
     
  12. Myshelby3425

    Myshelby3425 Well-Known Member

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    Sorry, this would be for a 2018 GT. I have to update my sig.
     
  13. BmacIL

    BmacIL Enginerd

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    Gotcha. In that case the SP088 would work very well.
     
  14. Myshelby3425

    Myshelby3425 Well-Known Member

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    Awesome thanks.. I read you’ve also owned the steeda fixed, are those better for the street as far as absorbing bumps on the road meaning more cushy than the FP tracks or would you say the other way around?
     
  15. BmacIL

    BmacIL Enginerd

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    In my experience, the FP are more comfortable, but that's with my SP085 springs. The SP088 would do fine with the Steeda fixed. Just know that you won't really be able to go much higher on spring rate with those shocks; not enough rebound damping.
     
  16. GuardEcoBeast

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    I was looking at ordering the Ford performance kit M-5700-N, but after reading all 35 pages I have come to the conclusion that it would be pointless because the springs would not fit. Guess I will be calling the dealer for gt350 springs.
     
  17. ahl395

    ahl395 Well-Known Member

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    You can probably get them from Tasca Parts cheaper.
     
  18. GuardEcoBeast

    GuardEcoBeast Well-Known Member

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    True, but Im not worried about price.
     
  19. keeph8n

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    @BmacIL hate to bug you, but want to order this stuff next week.

    Car is a 18 GT PP1. Daily with light to medium track duty(HPDE and some club days).

    350R Front Springs FR3Z-5310-M x2
    350R Rear Springs FREZ-5560-X x2

    Debating between GT350 Front Struts or Track Pack Struts up front and either TP Shocks, PP Shocks, or Vikings out back.

    Thoughts?
     
  20. 2015Etrac

    2015Etrac Well-Known Member

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    I run Koni Adjustables and they work great with the 350R springs. The Ford Performance Track Shocks are supposed to work great too.. I don't think the PP shocks would not be a good match for the 350R spring rates.
     
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