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Let's talk about the big Speedway Bar

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  • Let's talk about the big Speedway Bar



    This is a pic of my car from an autox this past weekend. While my results were decent (6th RAW out of 110), I am not happy about the body roll in that picture.

    I currently have the Godspeed front swaybar installed and no rear bar. My spring rates are a bit lower than I really wanted (long story, but GC sux). I am currently running 335F/275R on OTS Koni Yellows, I would like to bump both front and rear up at least 100lbs each.

    I keep hearing people mention the speedway bar but where in the hell do you get it and how hard is it to install on the front of a S14? I know its gonna require some fab work, but I am cool with that.

    Thanks!

  • #2
    http://www.1speedway.com/Swaybars.htm
    Between rides...unless you count a WD21...

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    • #3
      Hmm... does anybody know the length one would need for an S13 front?

      I'd like to try to get a huge one (per what Def said about the DTM BMWs) that I can make to clear the Greddy oil pan (as the Largus one won't clear it).
      http://sosideways.wordpress.com/

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      • #4
        Just up your spring rates. Many SCCA and race forums (where you actually have intelligent people posting...not 16yr old kids w/ a 240 that wants to be slammed and stretched) have Eibach Race Springs (that come w/ GC kits) for cheap b/c guys/gals are constantly changing/tuning their cars.
        GC doesn't suck amigo, been proven 100s of times otherwise.

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        • #5
          Used ERS go for about $80 shipped on a ton of forums - nothing new there, and most people here probably know that.

          Ground Control's customer service can suck my left nut.
          '18 Chevrolet Volt - Electric fun hatch for DD duty!


          DefSport Koni Sleeve and Spring Perch Buy!!!
          http://www.nissanroadracing.com/showthread.php?t=5902

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          • #6
            Originally posted by raen419 View Post
            GC doesn't suck amigo, been proven 100s of times otherwise.
            GC's stuff is "ok" but Def hit it out of the park, the customer service blows goats. Wrong spring rates, wrong spring lengths and they will not sell you individual parts if you mess something up.

            I have since learned that you can put together your own coilover sleeve kit by buying INDIVIDUAL parts from Koni. Pennies on the dollar too.

            Ground Control user for about 8 years.

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            • #7
              Originally posted by Def View Post
              Ground Control's customer service can suck my left nut.
              Roger that...it took them months to get my order figured out and I still haven't recieved my refund.

              Maybe he'd rather go with a huge sway bar instead of sacrificing comfort.
              Addicted to Motorsports

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              • #8
                Originally posted by ecugrad View Post
                GC's stuff is "ok" but Def hit it out of the park, the customer service blows goats. Wrong spring rates, wrong spring lengths and they will not sell you individual parts if you mess something up.

                I have since learned that you can put together your own coilover sleeve kit by buying INDIVIDUAL parts from Koni. Pennies on the dollar too.

                Ground Control user for about 8 years.
                Ah, customer service. Ok yeah, I can vouch for that too. Dealt with them twice...never again.

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                • #9
                  But with a huge sway bar you're going to be giving up grip due to the load transfer through the bar.

                  I would suggest getting your spring rates properly selected first and then getting a sway bar that will give you the minimum additional roll rate that you want for the car.
                  www.tipengr.com

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                  • #10
                    Also, use swift springs with thrust sheets instead of eibach. The are lighter, have on average one less coil per spring allowing them to compress flatter with less unwinding, and are much smoother. The extra cost is well worth it IMO.

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                    • #11
                      Originally posted by amgvr4 View Post
                      Also, use swift springs with thrust sheets instead of eibach. The are lighter, have on average one less coil per spring allowing them to compress flatter with less unwinding, and are much smoother. The extra cost is well worth it IMO.
                      What material do they use to get the same rate at a lower weight with one less coil? Last time I looked at material specs, the spring wire Eibach uses is one of the best from a modulus/weight standpoint.

                      ...and what's a thrust sheet?


                      I guess I've just never bought into the Swift spring hype, as I haven't seen any technical data support why they're "better."
                      '18 Chevrolet Volt - Electric fun hatch for DD duty!


                      DefSport Koni Sleeve and Spring Perch Buy!!!
                      http://www.nissanroadracing.com/showthread.php?t=5902

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                      • #12
                        The big bar will transfer weight off of the inside front, but it will also allow the outside front which is doing most of the work, to better keep its camber angle. When 240 front suspension is lowered, there's little to no camber to gain on compression- usually you loose neg camber on compression. my S13 went from -3.3 static neg camber to -1.5 on full compression up front! So the bar keeps this to a minimum and gives strong steering response, and less body roll up front. Body roll increases the need for neg camber too.

                        There's always 2 schools of thought- big bars soft springs, vs stiff springs small bars. Ideally for a race car you dont want bars, but most need them, if geometry isnt quite right (ahem macphereson strut). For a road car where comfort is a concern, bigger bars give flatter handling with little to no detriments in comfort. Typically a front eng rear drive car needs lots of front roll resistance, and a pretty soft rear. Gives steering response and rear traction.
                        98' 240sx SM project
                        93' civic sedan wdcr scca #96 SM
                        92' civic Dx gas mileage monster

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                        • #13
                          For those interested, SIKKY who made one of the best currently available s14 (and s13 done but read on) LSx v8 swap kits, are going to release an aftermarket front swaybar. They must do this as their s13 kit doesn't fit s13 swaybars (the stock swaybar touches slightly their custom race oil pan).

                          I messaged them if my tanabe swaybar that im about to install will clear LOL.. obviously won't if stock one doesn't but... we discussed things a bit. I asked them if it's gona be solid, hollow, what construction/material, etc...

                          I mentioned to them about these sort of swaybars... just a thought... if anyone wants to make something happen this is the time. I told them it should be cheaper then a bend-o-all-over bar as it needs a cnc'd bracket piece and the bar itself... should be easier for them to make as well and they have some nice work look at the kit for instance:



                          You can contact him and make suggestions here

                          http://www.silviav8forums.com/forum/viewtopic.php?t=737

                          His name is SikkyMFG
                          "hexa-dodecahedron-triple-threaded-super-eleventy-way-adjustment-spec" dampers. -Def

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