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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 05-13-2020, 04:22 PM   #183
Spade
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Originally Posted by M0nk3y View Post
#400 square on a STX FRS setup is a pretty common spring package. I had this on my car for the first year and found it to be a tad bit transitionally loose so I dropped to #350 in the rear and got much more comforting at higher speeds. So something to just keep in the back of your head if you seem to start experiencing those issues. Personally, just hearing the rear bar disconnected makes me think they were already battling these issues in earlier life.

Perhaps PO's thinking on the rear pads were trying to prevent the rear brakes from screwing around with the LSD, as they do clamp in some instances during yaw even with stability control completely off. Honestly, don't overthink it just match the rear pads and drive the car. I've run AP Racing BBK with 2500s all around for the past 2 years. It works. The rear pads are so small to begin with the last thing I'd want to do is shift bias more up front with an HPS pad.



Verus Engineering IIRC is one of the only "legal" solutions that is available for the car still with an STX compliant bushing. I personally have RacerX, but they stopped production it seems.
Got it thanks.

And Yea, in previous cars I've found HPS to be an overpriced garbage pad that was stock equivalent if not worse. I'll swap something a bit better in at some point

Honestly I doubt I'd change anything before first autocross back (whenever the heck that will be) but may try connecting rear bar should time allow between runs.
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Old 05-13-2020, 06:07 PM   #184
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Assuming you can find a rod end that matches the thread, get the hole sized for the factory bolt, and meet the percentage metal/non-metal requirement then yes, you could swap that and get it working. I looked into it a bit and got a headache and just stopped, not super easy imho.

I like the threaded adjustment too, but even buying used parts I think it'll be hard to beat the value of the Whiteline/SPC LCA with a legal bushing pressed into it. Once you figure out what toe/camber you like back there for stability and tire wear odds are you won't want to touch it.

https://www.ft86speedfactory.com/whi...E#.XrxUc2hKhPY

Be aware on the arms that provide multiple adjustment holes or static lowering, not ST* legal, but I think they have OE positions so as long as you bolt the damper/swaybar into the right hole it should be fine.
I still find it crazy that the SPC control arm is legal for SSC and not STX
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Old 05-13-2020, 07:33 PM   #185
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It was surprisingly easy to put the DIFtech bushings in the SPC arms. Used HF press to get the bushings out, then used a bench vise to insert the DIFtech pieces.

Honestly, if I wasn't converting from SSC, I probably would have seen where the stock arms put my alignment.
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Old 05-14-2020, 01:12 PM   #186
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It was surprisingly easy to put the DIFtech bushings in the SPC arms. Used HF press to get the bushings out, then used a bench vise to insert the DIFtech pieces.

Honestly, if I wasn't converting from SSC, I probably would have seen where the stock arms put my alignment.
Yeah plenty of people have run stock arms. Teddie's car is stock arms, Jeff's car was stock arms. So long as you dont have any rear damage I think it puts you around -2 with a reasonable rear drop.
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Old 05-14-2020, 03:01 PM   #187
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I have racer-x but my bushings weren't happy so I bought DIF bushings and had my buddy just build me some cups for them that thread into the racer-x arms.

Way more complicated solution haha.
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Old 05-14-2020, 03:24 PM   #188
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I have racer-x but my bushings weren't happy so I bought DIF bushings and had my buddy just build me some cups for them that thread into the racer-x arms.

Way more complicated solution haha.
After buying Diftech steering rack bushings, I think I would just have him make Delrin inserts for the RacerX parts, mail him the rod ends to get the old marshmallows blasted out, should be what, $100, maybe $150 for the custom work based on his current bushing prices.

Local machine shop could probably do it for the same or less, but he knows the car stuff so it'd probably be right the first time.
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Old 05-14-2020, 03:38 PM   #189
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Yeah, that makes sense. I just went about it the other way.

Similar result.
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Old Yesterday, 09:38 AM   #190
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re: returned to stock

Hey Guys, i finally decided to return the car to stock. Have fun this year in STX!!!

Last edited by KevBRZ; Yesterday at 11:34 AM. Reason: error
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