05-16-2021, 08:33 PM | #4075 | |
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We don't make suspension arms but if we did I wouldn't do it that way. And yes a lot of companies do it and with oversized rod ends so it's generally okay but still... More worrisome IMO are poly bushings that are used incorrectly on suspension arms. - Andrew |
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The Following User Says Thank You to Racecomp Engineering For This Useful Post: | EAGLE5 (06-19-2021) |
05-16-2021, 11:26 PM | #4076 | |
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Quote:
Please tell me more about poly bushings used incorrectly on suspension arms. What do you see?
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06-19-2021, 02:41 PM | #4077 | |
Quote:
- Andrew |
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The Following User Says Thank You to Racecomp Engineering For This Useful Post: | EAGLE5 (06-19-2021) |
06-21-2021, 01:49 PM | #4078 |
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Unable to get desired camber with Bilstein struts
Installed the Bilstein B12 pro kit which is the B6 strut with Eibach springs . Used a Verus camber plate and one camber bolt . If I try for -3 degrees camber in front the lower strut spring perch (90mm) contacts the subframe . I am at -2 degrees but that is really hard on my tires on a track day , is there a way to get more camber in front with the Bilsteins or will I need to get a different suspension set up ?
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06-21-2021, 06:53 PM | #4079 | |
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Quote:
another camber bolt offset lower control arm bushing aftermarket adjustable lower control arm |
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The Following User Says Thank You to strat61caster For This Useful Post: | WOJO (06-22-2021) |
06-22-2021, 07:36 PM | #4080 |
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@CSG, @RCE,
There is a TON of information in this thread (amazing!), although I'm having trouble understanding what a reasonable modification progression looks like with respect to taking a stock street car (in this case a 2020 BRZ with PP) and building it out to respond well at the track to stickier tires in the "extreme summer performance" category. For example, I hear that increased spring rates are important. What is a target spring rate and damper for stock-ish height car that can still be driven to the track without hating road imperfections? I also see differences in spring rates front to back. What spring rate balance front to back is desirable for 2017+ cars with stock sway bars? I also hear that alignment is important. So.....my question is this: If we take a stock BRZ with PP to the track (open lapping, Solo HPDE), and desire to run 200TW tires with great to excellent vehicle dynamics, what is a reasonable and effective combination of mods for this application? Is there a minimal level advisable so as to take advantage of the additional grip? Is alignment adjustments front and back plus new coils and dampers enough, or are we wanting to see new sway bars as well? I'm just looking to take it up a notch to handling 200TW with great dynamics, but don't want to ruin the goodness that's already in the stock car. I would expect some degradation of street comfort as a trade-off, which acceptable. This isn't GT car for me. It's a spirited canyon run or back and forth to the track. Money is not the limiting factor here, ignorance is |
06-29-2021, 04:13 PM | #4081 |
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Need more rear grip
After a couple autocross events with my new tS-converted 2019 BRZ PP, I still feel like I need less oversteer when powering out of corners. This is how my setup is right now:
-Bilstein B6 dampers on tS STi pink springs (10mm). -STi draw stiffener and flexible V-bars. -Falken RT660 on 17x8" ET45 wheels. - -1.9* front camber, -0.9* rear camber, zero front toe, 0.10* rear toe-in. Any suggestions on reducing oversteer on corner exit? I'm trying to stay in the Stock class of my autocross club which allows for minor mods, so here are my options that I'm considering: -Add the STi flexible strut tower brace (ST20502AS000). -Install a thicker front aftermarket swaybar, OR install the smaller rear swaybar from the 13-16' MY cars. Not both. I'm not allowed to add camber-adjustable rear control arms so that's out of the question. |
06-29-2021, 04:20 PM | #4082 | |
Quote:
- Andrew |
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The Following User Says Thank You to Racecomp Engineering For This Useful Post: | N_Raged (06-29-2021) |
06-29-2021, 04:28 PM | #4083 | |
Quote:
There's some personal preference...some like a very sharp and reactive car, others a more forgiving car. Some that has to do with overall stiffness and some of that with spring rate balance. And of course there's alignment and ride height etc to tune as well. For what your looking for, a good set of coilovers with ball park 7 kg/mm spring rates, camber plates, and rear adjustable lower control arms will do what you need IF set up correctly. A couple of bushings can help and can really improve feel/feedback/consistency, but not required. Larger swaybars optional, not 100% needed. Happy to chat if you have more questions. - Andrew |
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The Following User Says Thank You to Racecomp Engineering For This Useful Post: | JAS4 (06-30-2021) |
06-29-2021, 04:43 PM | #4084 |
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Do you have any onboard videos, or better yet data logs, so that others can see what the car is doing vs what you are doing?
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06-29-2021, 05:13 PM | #4085 | |
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Quote:
Here's a bad day when I could not get on the power early exiting a corner because of lack of rear grip. You can see my messy exit of a hairpin at 0:16 because I had to correct the oversteer. |
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The Following User Says Thank You to N_Raged For This Useful Post: | timurrrr (06-29-2021) |
06-29-2021, 05:20 PM | #4086 | |
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06-29-2021, 10:00 PM | #4087 |
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06-29-2021, 11:48 PM | #4088 | |
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Quote:
-From there site Up to -3 degrees of camber at stock ride height without camber bolts -https://www.verus-engineering.com/shop/product/front-camber-plate-assembly-brz-frs-gt86-349 Look at the picture of the Blue camber plate. This is what I am talking about adjusting the camber plates. Gives you a lot more angle.
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