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NHW20 Ground Control, Bilstein and KYB suspension upgrade

Discussion in 'Gen 2 Prius Accessories & Modifications' started by Justdidit, Apr 19, 2016.

  1. Justdidit

    Justdidit LVNPZEV

    Joined:
    Jun 12, 2012
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    Location:
    Carrollton, Texas
    Vehicle:
    2007 Prius
    Model:
    Four Touring
    Let the fun begin...
    (1) KYB 333388 Front Gas Charged Strut
    (1) KYB 333389 Front Gas Charged Strut
    (2) KYB SM5215 Upper shock Mount
    (2) Bilstein B8 Sport Shock Absorber Item: 24-069250 (larger shock size than the Prius Touring and much bigger than the base model)
    uploadfromtaptalk1461097187527.jpeg

    uploadfromtaptalk1461097207600.jpeg

    uploadfromtaptalk1461097217077.jpeg

    uploadfromtaptalk1461097224198.jpeg

    uploadfromtaptalk1461097234864.jpeg

    uploadfromtaptalk1461097253269.jpeg

    Took a grinder to this wrench to make it fit the small gap in the top strut
    uploadfromtaptalk1461097265027.jpeg

    uploadfromtaptalk1461097275684.jpeg

    uploadfromtaptalk1461097285030.jpeg
     
  2. Justdidit

    Justdidit LVNPZEV

    Joined:
    Jun 12, 2012
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    Location:
    Carrollton, Texas
    Vehicle:
    2007 Prius
    Model:
    Four Touring
    On the old setup, the Sleeve sat on the front strut spring perch.. The height adjustment was limited.

    uploadfromtaptalk1461098074656.jpeg

    Top of strut cap kept the sleeve centered.
    uploadfromtaptalk1461098091601.jpeg

    Small lip that the cap slid into
    uploadfromtaptalk1461098101797.jpeg

    Ground Control sent me the BMW M3 sleeve to allow for more adjustment... up and down.
    uploadfromtaptalk1461098124284.jpeg

    uploadfromtaptalk1461098136588.jpeg

    Off with the old..
    uploadfromtaptalk1461098186567.jpeg

    Comparison between the old and new
    uploadfromtaptalk1461098216995.jpeg

    Doesn't look like much..
    uploadfromtaptalk1461098251596.jpeg

    uploadfromtaptalk1461098263410.jpeg

    Installed
    uploadfromtaptalk1461098270943.jpeg
     
  3. Justdidit

    Justdidit LVNPZEV

    Joined:
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    Location:
    Carrollton, Texas
    Vehicle:
    2007 Prius
    Model:
    Four Touring
    Couple measurements of the front KYB 48520-47041 OEM replacement Front Gas Charged Strut

    Top of strut casing to spring perch.
    uploadfromtaptalk1461098607174.jpeg

    Casing diameter KYB 48520-47041
    uploadfromtaptalk1461098626606.jpeg

    Spring perch diameter of KYB 48520-47041
    uploadfromtaptalk1461098645614.jpeg

    KYB 48520-47041
    uploadfromtaptalk1461098660002.jpeg

    KYB 48520-47041
    uploadfromtaptalk1461098669834.jpeg

    Diameter of the spring perch of rear Toyota KYB touring 48530-47041 strut
    uploadfromtaptalk1461098694729.jpeg

    Casing diameter of of rear Toyota KYB touring 48530-47041 strut
    uploadfromtaptalk1461098705243.jpeg

    Height of spring perch from bottom of casing on rear Toyota KYB NHW20 touring 48530-47041 strut
    uploadfromtaptalk1461098715795.jpeg

    Toyota KYB NHW20 touring 48530-47041 strut
    uploadfromtaptalk1461098737935.jpeg

    New and old
    uploadfromtaptalk1461098764916.jpeg
     
    #3 Justdidit, Apr 19, 2016
    Last edited: Apr 19, 2016
  4. Justdidit

    Justdidit LVNPZEV

    Joined:
    Jun 12, 2012
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    Location:
    Carrollton, Texas
    Vehicle:
    2007 Prius
    Model:
    Four Touring
    Comparing the new Bilstein B8 Sport Shock Absorber Item: 24-069250 and the Toyota KYB NHW20 touring 48530-47041 strut.
    uploadfromtaptalk1461099324234.jpeg

    Casing diameter is larger on the Bilstein B8 Sport Shock Absorber - so Ground Control supplied me with a new sleeve to fit it.
    uploadfromtaptalk1461099364792.jpeg

    uploadfromtaptalk1461099380199.jpeg

    Installed..
    uploadfromtaptalk1461099393124.jpeg

    Loving the new ride!!
    uploadfromtaptalk1461099450048.jpeg

    Now I need new wheels!!
     
  5. 69shovlhed

    69shovlhed Surly tree hugger

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    it appears that those bilsteins have been discontinued. Wth? there is a listing for a B6 that fits corollas, is the B6 wimpier than the B8?
     
  6. Justdidit

    Justdidit LVNPZEV

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    Vehicle:
    2007 Prius
    Model:
    Four Touring
    They are not as easy to find - a few places still have them.

    Truckspring.com

    Since I can't direct link - some place in South America that is a river...

    SummitRacing.com

    From what I've read on other sites - Bilstein Heavy Duty (B6) was designed more for Stock ride height and the Bilstein Sport (B8) were designed for Lowering springs and have a shorter stroke.

    [​IMG]

    In theory, the shorter stroke allows you to lower the car more before slamming into the bumpstops. It is done by using a spacer inside the body itself to limit travel. Both have very similar valving.

     
    #6 Justdidit, Apr 20, 2016
    Last edited: Apr 20, 2016
  7. 69shovlhed

    69shovlhed Surly tree hugger

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    thanks for the info. since I don't plan to lower my car, I think I will go ahead on the B6's.

    your car is looking damn good!
     
    Justdidit likes this.
  8. Justdidit

    Justdidit LVNPZEV

    Joined:
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    Vehicle:
    2007 Prius
    Model:
    Four Touring
    Thanks!! It's still a work in progress.

    Just keep in mind the Bilstein strut casing diameter is larger than even the touring which is larger than base model strut. Check your spring coils to make sure they will fit. If you need any more measurements from the Bilstein, let me know.
     
  9. illprius

    illprius Junior Member

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    All great info thanks Justdidit. Im currently waiting on my ground control sleeves since I changed up my spring rates. Now I totally want to get the BMW sleeve to go with it. Your car is looking awesome!!!
     
    Rmmgs4 and Justdidit like this.
  10. Justdidit

    Justdidit LVNPZEV

    Joined:
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    Location:
    Carrollton, Texas
    Vehicle:
    2007 Prius
    Model:
    Four Touring
    Thanks! The BMW M3 GC sleeve, imo, fits better than the standard GC sleeve designed for the Matrix and Vibe and definitely allows for more height adjustment both + or - . Since my initial purchase of the kit I have changed the front and rear sleeves and also the rear springs. Front sleeves are chosen after sending GC the dimensions of the front strut - they chose the BMW M3 sleeve. The rear sleeve idk what it's from but after sending them the specs it fit perfectly over the larger Bilstein struts. The rear springs have been changed 3 times... First went with stiffer springs, shorter and stiffer springs and then right before moved to Canada, I chose stiffer springs yet - 6.7kg over what originally came with the kit - 4kg.
     
    #10 Justdidit, Apr 21, 2016
    Last edited: Apr 21, 2016