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01-22-2024, 03:31 PM | #353 | |
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Our M3 stock toe links are already spherical on both ends. The weakness of the stock toe link is the eccentric bolt that is used to set the toe. |
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02-27-2024, 03:46 PM | #354 |
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Rogue has some similar to what SPL has. It’s a spherical insert, not a washer.
https://www.rogueengineering.com/Rog...-V20_p_92.html |
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03-05-2024, 05:25 PM | #355 | |
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Going to call GC tomorrow and ask them about this issue and if they've heard about it. Anybody already spoken with them? |
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03-06-2024, 10:33 AM | #356 |
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I had no issues with mine for ~3 seasons on my previous car. Not saying that means they cannot fail though.
I just bought another set for my new build, so hopefully all is good this time around again... |
03-18-2024, 07:11 PM | #357 | |
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What kind of bolts did you install with? Factory bolts or ARP? How many track days through those ~3 seasons? |
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04-01-2024, 12:04 PM | #358 |
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04-12-2024, 09:12 AM | #359 |
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I got around to doing the Powerflex Black bushing install. I'm a lot happier with this solution. I can't imagine the difference between this and bearings will be noticeable, and these were way easier to install. I used new ARP bolts for this install, torqued to 98ft-lbs.
Again not really a professional opinion but I'll certainly sleep better at night. |
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06-16-2024, 05:23 AM | #360 | |
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I have the same feeling as well. At first I was excited to see this low cost options which can make improvement on our car. But it looks like if you do any track driving/ HPDE, the added washer for putting up the bearing can be a point of risk uncertainly to the whole thing. In the rear suspension, I already hv the solid bushing subframe. I was planning to change out some bushing to bearing, now after reading all this, I decide if I have to swap bushing to bearing, I only pick those which I do not need to add any spacer/ washer or alter to length of the whole pieces to replace. I guess one of the example would be the Rear lower control (spring) arm Inner bushing. This can be upgrade to bearing with little worries. At the end I would like to say THANK YOU to many who willing to share their "successful" and "unfortunate" experience on this topic.
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E92 6spd, Endless 6POT w/ MX72Plus, W003 & ME22. KW Clubsport 3 way, Akra Evo, Rays ZE40 w/ RE71R, BPM tune
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06-16-2024, 07:01 PM | #361 |
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Just finished a trackday Sat night. Drove 55 mins straight at Sepang International Circuit. Zero issues with the sphericals. That said I was only on AD08R tires and no aero, so not extreme amounts of grip. I did ride the kerbs pretty hard tho.
At this stage I'm comfortable with the strength/safety of the spherical conversion for anything up to trackdays. If you're a competitive driver or doing time attack or racing then probably race arms are better. |
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06-17-2024, 12:07 AM | #362 |
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I've been reading about this approach of removing the rubber while retaining stock arms, but I've found some other "package" approaches to this that take the self-sourcing out of it.
As an example, there's the Laptorr kit (https://laptorr.com/collections/m/E92-M3) and the Schirmer kit (https://www.teamschirmerparts.com/pr...s-gt-rear-axle) that provide full sphericals and eccentric camber arm bearing. Would this be a similar but safer approach? It definitely appears that going spherical isn't the problem but rather the improper use of washers, so maybe a "kit" is likely to mitigate some of that risk? (edit: ignoring the somewhat absurd pricing from both of those vendors, I see that SPL has the bearings for far cheaper)
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Last edited by bipp; 06-17-2024 at 12:23 AM.. |
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Yesterday, 06:55 PM | #363 |
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IND now offers this spherical kit for the rear wishbone and guide rod (the two rear upper arms). Looks like the conical face is built in, so no need to use the custom tapered washer. Might be a stronger solution for the trackies.
https://www.m3post.com/forums/showthread.php?t=2135761 |
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