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Old 09-02-2015, 01:43 PM   #1
HatchirokuV2.0
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Chassis Bracing that's worth looking at?

So I've recently purchased an 86, and I've found the FT86 Speed-factory website. Surprisingly, just like a Miata, there is a chassis bracing section that has god knows how much different choices.


What are the weakest points of this vehicles chassis that could use some stiffening? I'd like to start making a parts list for what I'd like to have on this car (and hopefully maybe get one or two things for myself by christmas-time) and what is worth paying for.


Thanks a bunch!
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Old 09-02-2015, 11:01 PM   #2
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Chassis braces are really only needed to fully stiffen up sections you really want to see some minor differences. Just as it is with strut bars, you'll feel little bits of difference in handling, but nothing extreme.

If you plan to stiffen up the front and back alone, a good crossmember brace for each will add little bits of good feeling. Honestly, it all depends on your driving style; but personally I would just stiffen up the whole underside if you do any braces at all as it'll put equal stress along the frame versus what's reinforced and what isn't. TOM's, Agency Power, Beatrush, and Cusco all do this for you with the first two being the most affordable and practical for daily driving.
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Old 09-03-2015, 12:14 AM   #3
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Bushings. not much else does much for the dollar.
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Old 09-03-2015, 12:34 AM   #4
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As someone who has chassis bracing, just do bushings.
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Old 09-03-2015, 10:21 AM   #5
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NVH, that's 97% of what "braces" accomplish these days, that and emptying your wallet.

An NA Miata, built in the early 90s meaning designed in the mid-late 80s....they still don't do much (someone who went back to back with and without braces on track).
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Old 09-03-2015, 12:44 PM   #6
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Better know what you want to brace before just doing it. Before going to the track I had my strut bar and V bars set with preload, I let the chassis droop for a couple hours then tightened and lowered the car, and I noticed my cars handling just didn't feel where it should have. I went ahead and loosened the components and re-tightended on flat ground and the car felt more flexible and wound out better on corner exit.

TL;DR - go to the track and see if there's anything you need to brace. This car hasn't appeared to be like the R53 Mini's where the towers mushroom in.
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