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SPL V2 solid subframe bushings

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  • SPL V2 solid subframe bushings

    NEW VERSION 2

    Our version 2 solid subframe bushings provide a new level of adjustability not previously available. Designed to allow the subframe to sit up to 1/2" closer to the chassis (fully adjustable in 1/4" increments with supplied shims), our new solid subframe bushings will allow up to 1/2" drop in rear ride height without affecting roll center.


    SPL PRO solid subframe bushings v2 S13/S14 $139
    "hexa-dodecahedron-triple-threaded-super-eleventy-way-adjustment-spec" dampers. -Def

  • #2
    I'm just gunna do this when I install my s-14 subframe.

    http://zilvia.net/f/tech-talk/171389...ml#post2820451
    function > form
    1990 240sx fastback: IN PROGRESS

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    • #3
      you can raise it an inch according the the zilvia thread. i didn't realize there was that much room. i like that idea, but would rather have some poly bushings in there since my car is on the street a lot.

      and that looks like a pretty serious chunk of metal, how much do those things weigh?

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      • #4
        I was expecting the ride quality to be really harsh with the aluminum bushings in the rear sub frame. Truth is, the ride quality isn't that bad at all. I figure it's because the 240sx chassis is so soft compared to modern cars. The factory suspension of the IS-F I found to be more stiff than my 240sx with aluminum bushings and 90% spherical bushings. Chassis flex seems like the only explanation....


        I'm sure I can make it worse for myself and crank up the shock stiffness, but why?

        Kinda sucks these bushings are coming out after I just put in their v1 bushings just a few weeks back.

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        • #5
          Yeah same here, im not sure i can even take out the v1 subframe bushings without busting up the subframe

          Honestly it's not as harsh as people make it out to be I swear to God I find my car comfortable how I've set it up and you know how stiff spring rates i have.

          Only thing that I got is a resonance vibration a 2800rpm.. its annoying as HELL i thought it was the transmission but ive been told this has to do with the differential noise resonating through the solid subframe bushings...
          "hexa-dodecahedron-triple-threaded-super-eleventy-way-adjustment-spec" dampers. -Def

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          • #6
            I bought a set of these the other day.
            I am still trying to figure out what the install will be like, especially with the ring looking spacers. I can't find any real instructions, but I will probably figure it out once I get the subframe off.

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            • #7
              very nice (borat style). There has to be some minor negative side effects from chaging the driveline angle and the small increase in shock angle, but small price to pay to keep the roll center more normal

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              • #8
                If anything, I think the driveline would be straighter, resulting in less hop and a gain in efficiency.

                It's just too bad that I can't run offset bushings

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                • #9
                  Does anyone know if SPL will run an upgrade discount, like with there other products?

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                  • #10
                    Good question, someone email them I'm lazy lol. I have 130-ish $ credit with splparts, but i am saving that for LCAs lol
                    "hexa-dodecahedron-triple-threaded-super-eleventy-way-adjustment-spec" dampers. -Def

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                    • #11
                      Originally posted by zoomswimmer View Post
                      Does anyone know if SPL will run an upgrade discount, like with there other products?
                      SPL Parts: we will probably offer an upgrade discount

                      on an AIM conversation.

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                      • #12
                        So does anyone have these?
                        I was reading the thread they have on zilvia, they said you could space just the front to decrease anti squat, but it might bend and possibly break the studs. Does anyone think that is a legitimate concern, or just CYA speak?
                        Ive been looking for info on what would be best for an autocross/ track car, but all the opinions I've come across on the net and otherwise is more-solid, more-better.

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                        • #13
                          So does anyone have these?
                          I was reading the thread they have on zilvia, they said you could space just the front to decrease anti squat, but it might bend and possibly break the studs. Does anyone think that is a legitimate concern, or just CYA speak?
                          Ive been looking for info on what would be best for an autocross/ track car, but all the opinions I've come across on the net and otherwise is more-solid, more-better.

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                          • #14
                            More solid more better. I was looking at the spacing thing earlier and immediately thought it would bend the studs.
                            SM 63 KA-t 470hp 480tq G30-660 A2W IC

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                            • #15
                              Originally posted by AdamR View Post
                              So does anyone have these?
                              I was reading the thread they have on zilvia, they said you could space just the front to decrease anti squat, but it might bend and possibly break the studs. Does anyone think that is a legitimate concern, or just CYA speak?
                              Ive been looking for info on what would be best for an autocross/ track car, but all the opinions I've come across on the net and otherwise is more-solid, more-better.
                              I wouldn't worry too much about breaking the studs. Really you shouldn't be putting anymore then one of the 1/4" spacers under each front subframe bushing though. Personally I don't think that attempting to make any major anti-squat changes through the subframe bushings is a very realistic idea. If you want less anti-squat just put the s-14 subframe in, if your particular class rules allow that is.
                              function > form
                              1990 240sx fastback: IN PROGRESS

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