Verkline Rear Adjustable Traction Link and Toe Link NVH Question

[nameless]

Are these the ones?
https://www.millway.se/products/control-arm-bushing-front-supra-a90

The thrust arm bushing I used Millway:
Front Tension Strut / Thrust Arm Bushing Street BMW G20 G21 G26 G42 – Millway
The lower control arm bushing from Millway would also be very great option, unfortunately it wasn't available when I was in the market.
I bought the LCA bushings made by Turner Motorsports. Very well built as well. All bushings are sealed and won't need any follow-up maintenance from rusting.
005670LA01 - Turner Greasable Front Control Arm Monoball Upgrade set - A90 G29 Z4 | Turner Motorsport

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[Funkjaw]

The thrust arm bushing I used Millway:
Front Tension Strut / Thrust Arm Bushing Street BMW G20 G21 G26 G42 – Millway
The lower control arm bushing from Millway would also be very great option, unfortunately it wasn't available when I was in the market.
I bought the LCA bushings made by Turner Motorsports. Very well built as well. All bushings are sealed and won't need any follow-up maintenance from rusting.
005670LA01 - Turner Greasable Front Control Arm Monoball Upgrade set - A90 G29 Z4 | Turner Motorsport

Thx, I'll be adding these to my list!

 

[razorlab]

The arms with monoball bushings are surprisingly quiet. The improvement in handling is dramatic. For the front I installed monoball bushings to the OEM arms just to avoid issues like tiny Allen key locking mechanism getting lose for those adjustable arms. The result is very successful. No noticeable NVH but huge improvement in handling. The “response time” for the car from steering input feels like improved 500%. The thrust arm bushing dramatically improved toe stability from hard braking, as well as greatly reduced nose-dive behavior. Braking becomes much flatter and gives me more confidence.

Nice, I used the Turner bushings in my caster/thrust arms. So nice that they are sealed.

 

[nameless]

This is awesome! For folks who concern about compatibility issues from different aftermarket arms/sway bar links/coilover mounting points and the potential issues of adjustable arms getting lose, or exposed monoball bushing rusting, upgrading those sealed monoball bushings are the best one-time investment!

 

[FLtrackdays]

This is awesome! For folks who concern about compatibility issues from different aftermarket arms/sway bar links/coilover mounting points and the potential issues of adjustable arms getting lose, or exposed monoball bushing rusting, upgrading those sealed monoball bushings are the best one-time investment!

Nice, I used the Turner bushings in my caster/thrust arms. So nice that they are sealed.

Wow…. they aren’t cheap. That’s for sure. But sounds like they’re worth it. If sticking with Turner, link below for the caster/thrust arms to go with Turners front control arms you already mentioned.

https://www.turnermotorsport.com/p-...t-thrust-arm-bushings-upgrade-a90-g20-g29-z4/

Edit: I bought them both… Curse both of you

 

[Habu]

Me, who ended up buying some for the suspension arms too. Only problem is I ended up buying the ones for a new M2/3/4..
Also too late to return them. Anybody on this forum got a new M car that’s interested in buying these from me?

 

[exe36m3]

The guys at Millway are pretty decent people, if you offer to pay return shipping, they'd probably swap them out. Email them.

I know this thread is a little old, but if you feel the rear end wiggles or slides too much. Try the rear toe alignment (maxxed?) at 13 degrees toe-in, per Z4 specs. I drive VERY aggressively on the street and it's a minor miracle how much less light the rear end feels.

If you *still* want the rear toe arms from Verkline, do it because the stock toe settings slip on you under load/your driving style. The arms don't magically make the rear end stick better, the alignment does and a good set of toe-arms essentially locks that rear setting down.

 

[Funkjaw]

The guys at Millway are pretty decent people, if you offer to pay return shipping, they'd probably swap them out. Email them.

I know this thread is a little old, but if you feel the rear end wiggles or slides too much. Try the rear toe alignment (maxxed?) at 13 degrees toe-in, per Z4 specs. I drive VERY aggressively on the street and it's a minor miracle how much less light the rear end feels.

If you *still* want the rear toe arms from Verkline, do it because the stock toe settings slip on you under load/your driving style. The arms don't magically make the rear end stick better, the alignment does and a good set of toe-arms essentially locks that rear setting down.

Yup I have verkline toe and traction links ordered - just waiting for them to arrive ?

 

[Habu]

The guys at Millway are pretty decent people, if you offer to pay return shipping, they'd probably swap them out. Email them.

I know this thread is a little old, but if you feel the rear end wiggles or slides too much. Try the rear toe alignment (maxxed?) at 13 degrees toe-in, per Z4 specs. I drive VERY aggressively on the street and it's a minor miracle how much less light the rear end feels.

If you *still* want the rear toe arms from Verkline, do it because the stock toe settings slip on you under load/your driving style. The arms don't magically make the rear end stick better, the alignment does and a good set of toe-arms essentially locks that rear setting down.

I bought them from Speed engineering. Unfortunately they appear to have it labeled compatible or universal with the M chassis cars (under the Supra MKV parts page). At the time I figured that was possibly a valid case only to find out its not after trying to install them (Ours is a-lot bigger). But i'll try contacting them and see if they can help out. Thanks.

Edited** They actually have the wrong part number for the Supra on their site by accident it appears.

 

[Funkjaw]

Thinking of getting these two items:
Verkline Rear Adjustable Traction Link
Verkline Rear Adjustable Toe Link

Main reason for considering these links is the amount of rear-end wriggle that myself and many others have found in this car in stock form. I find the rear end to be unstable and frankly a little dangerous when pushing it and it seems doing these two items will resolve 90% of that from what I have learned.

For those who have them, or even other heimjoint based variants such as SPL, Torque Solutions, etc.. - how much more NVH is experienced? My car is a daily driver before all else and really enjoy how refined the MKV Supra is when just tooting around town and would hate to ruin that.

Any feedback is appreciated, thank you

Hey past self, it's your future self - just letting you know that I installed them and it turns out the rear traction link and toe link from verkline do not generate any additional NVH.

Cheers you sexy fuck.

 

[nameless]

Hey past self, it's your future self - just letting you know that I installed them and it turns out the rear traction link and toe link from verkline do not generate any additional NVH.

Cheers you sexy fuck.

Awesome! How’s the improvement so far?
I’m installing Verkline WAS-425 and WAS-426 to stiffen up traction arm’s bushing at the knuckle and lower wishbone’s inner bushing, both are monoball. I’ll share the feedback when I’m done. A little hard to install but hopefully the effort is worth it. By stiffening up the lower “triangle” it should see some improvement in more stable camber and feels more sharper. The next step would be the toe arm. I’m probably not sensitive enough to feel the toe arm not being stable or toe change during hard cornering. I also bought a string alignment kit from Whiteline and a couple inexpensive turn tables. I’ll measure the toe more frequently after track days, sprinted driving events, etc.
Folks, this is getting interesting! Really enjoy doing some mods and discuss with you all. Feels like we are doing some scientific research paper and publishing in the Science magazine lol! Let's build our Supra Ultimate Edition together!

 

[Funkjaw]

Awesome! How’s the improvement so far?
I’m installing Verkline WAS-425 and WAS-426 to stiffen up traction arm’s bushing at the knuckle and lower wishbone’s inner bushing, both are monoball. I’ll share the feedback when I’m done. A little hard to install but hopefully the effort is worth it. By stiffening up the lower “triangle” it should see some improvement in more stable camber and feels more sharper. The next step would be the toe arm. I’m probably not sensitive enough to feel the toe arm not being stable or toe change during hard cornering. I also bought a string alignment kit from Whiteline and a couple inexpensive turn tables. I’ll measure the toe more frequently after track days, sprinted driving events, etc.
Folks, this is getting interesting! Really enjoy doing some mods and discuss with you all. Feels like we are doing some scientific research paper and publishing in the Science magazine lol! Let's build our Supra Ultimate Edition together!

Hell yeah man that's awesome. I think the WAS-425/426 will be a great addition to the car.

Let us know how that string alignment kit works out... seems kinda wonky but hey if it works it works. I personally just got a lifetime alignment at firestone but the downside is I can't do "custom" specs with them, at least not without being friends with the alignment tech.

I don't have a TON of feedback just yet on the rear links. The most noticeable thing I'd say is the rear end feels more "normal" when power sliding the car. I'll update as I get some more miles on the setup.

 

[cbrummell]

Hell yeah man that's awesome. I think the WAS-425/426 will be a great addition to the car.

Let us know how that string alignment kit works out... seems kinda wonky but hey if it works it works. I personally just got a lifetime alignment at firestone but the downside is I can't do "custom" specs with them, at least not without being friends with the alignment tech.

I don't have a TON of feedback just yet on the rear links. The most noticeable thing I'd say is the rear end feels more "normal" when power sliding the car. I'll update as I get some more miles on the setup.

any update on this??

 

[Funkjaw]

any update on this??

Yeah so I've put around ~1000 miles on the car with the new links. No track days but a ton of spirited driving. Still no increase to NVH at all. The rear end is a lot more planted than when the car was in bone stock form. It's hard to describe but long and short; I highly recommend these links for those who like to test the limits of the car; even on the streets. I can't think of any drawback to them other than the hit to your wallet.

 

[Habu]

The arms with monoball bushings are surprisingly quiet. The improvement in handling is dramatic. For the front I installed monoball bushings to the OEM arms just to avoid issues like tiny Allen key locking mechanism getting lose for those adjustable arms. The result is very successful. No noticeable NVH but huge improvement in handling. The “response time” for the car from steering input feels like improved 500%. The thrust arm bushing dramatically improved toe stability from hard braking, as well as greatly reduced nose-dive behavior. Braking becomes much flatter and gives me more confidence.

Did you need an alignment after installing these in the caster and control arm? Even though they are fixed.

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