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Thread: Linear Rate Springs - Options?

  1. #1
    Supramania Regular
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    Default Linear Rate Springs - Options?

    Does anyone know of a linear rate spring for the Supra that isn't a full coilover kit? I've been searching high and low, and it seems like every company that once sold a set no longer offers it.

    Also, something like a ground control coilover setup could be awesome, but GC doesn't make a kit for our cars, unfortunately.

  2. #2
    Joe Yantz
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    Default Re: Linear Rate Springs - Options?

    Have you checked this list?
    http://www.supramania.com/forums/sho...te-Compilation

    I recently picked up a set of RSR race springs, but I got them lightly used
    Last edited by yhatzee89; October 16th, 2014 at 07:49 AM.
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  3. #3
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    Default Re: Linear Rate Springs - Options?

    Quote Originally Posted by yhatzee89 View Post
    Have you checked this list?
    I recently picked up a set of RSR race springs, but I got them lightly used
    I assume you mean this list?

    http://www.supramania.com/forums/sho...te-Compilation

    I checked it first, and it's old enough that most of the information is no longer relevant. ST (Suspension Techniques), R*SR Sport, R*SR Race are all discontinued. Tokico and Whiteline springs I'm not sure ever existed in the first place, and if they did, they certainly aren't available now.

    I called R*SR directly, and they do offer the T163D "Down" spring, but their engineers said it's a progressive rate spring.

  4. #4
    Joe Yantz
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    Default Re: Linear Rate Springs - Options?

    Oh damn I forgot to actually post the thread, sorry. Yes that thread. I've never seen an actual set of whiteline or tokico springs either
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  5. #5
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    Default Re: Linear Rate Springs - Options?

    Quote Originally Posted by yhatzee89 View Post
    I've never seen an actual set of whiteline or tokico springs either
    Amusingly, when I called Whiteline, the person on the phone said that Whiteline doesn't, and has never made springs for any car. Makes me wonder how valid the other info is....

    Also, I've been calling various other manufacturers for more info about their springs, and I can compile it into a new and updated table here, looks like King springs actually are linear. I might give them a shot.

    Here's a table of the information I've compiled so far (all information is what I got from calling and emailing manufacturers, I can update it as I get more information, or if new springs are found)










    SpringPart NumberTypeFront Spring RateRear Spring RateFront LoweringRear LoweringNotes
    RSR DownT163DProgressive504 lb/in262 lb/in1"0.6"
    IntraxTOY1141Progressive1.4"1.4"Spring rates not known by manufacturer. Said to be 10% stiffer.
    King StandardKTFS-24/KTRS-71Linear390 lb/in195 lb/inNoneNone
    King LowKTFL-24/KTRL-71Linear420 lb/in195 lb/in1"1"
    Eibach8211.140Progressive343-628 lb/in126-257 lb/in1.4"1"
    H&R54689Progressive1.6"1.3"
    TanabeGF210Progressive442 lb/in207 lb/in1.1"0.6"
    B&G92.1.005Progressive1.5"1.5"


    If you know of any more that are *currently available*, let me know and I'll do my best to get information about them.
    Last edited by emiliorescigno; October 16th, 2014 at 06:21 AM.

  6. #6
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    Default Re: Linear Rate Springs - Options?

    I've never even heard of King springs, but I'm kinda interested. Any idea if they are quality good springs, or are they cheap stuff? Would you happen to have the info for the King Standard springs as well?

  7. #7
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    Default Re: Linear Rate Springs - Options?

    Quote Originally Posted by Silver MK3 View Post
    I've never even heard of King springs, but I'm kinda interested. Any idea if they are quality good springs, or are they cheap stuff? Would you happen to have the info for the King Standard springs as well?
    I don't know anything about their reputation, but I do know they're an Australian company, and I think their springs are made in Australia as well. I will hopefully get more information about their "standard" springs soon, and I'll update the table once I get more info.

  8. #8
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    Default Re: Linear Rate Springs - Options?

    Quote Originally Posted by emiliorescigno View Post
    I don't know anything about their reputation, but I do know they're an Australian company, and I think their springs are made in Australia as well. I will hopefully get more information about their "standard" springs soon, and I'll update the table once I get more info.
    Sounds good. Thanks for putting this together so we have an updated list for these things!

  9. #9
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    Default Re: Linear Rate Springs - Options?

    Updated the chart with the King "Standard" springs. Seems like an OEM replacement.

  10. #10
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    Default Re: Linear Rate Springs - Options?

    Just got a response from Intrax. They don't even know their own spring rates....Table Updated

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