Control Arm

We have been quietly working in an adjustable front control arms since 2013 for the Mazdaspeed 3. We haven't said much about it as we wanted to get some real world use and abuse to validate the design to ensure it is trouble free.

We have been road testing the arm for over 2 years now and we are confident in the design being sturdy to hold up to the abuse people can put them through.



We know there is another option on the market which is fairly expensive. Our arms would be $525 for the pair. How many people would be interested if we made a batch of them?

-Derrick

 

What are some of the benefits in lets say in an autocross application for example?

 

man do i wish that i had a need for this.

 

You can adjust camber easily. On strut suspension setups ie no coilovers you get some adjustability back. If you used them with camber plates you could really dial in some serious camber.

 

Just out of curiosity, what's the weight difference compared to stock?

 

2.2 lbs heavier.

Derrick

 

@CorkSport - Derrick
@Nliiitend1
@phate

Thanks for making these.

Notes on the design-
-When combined with camber plates, this could be an effective way to pull in or increase the front track.
-It looks like the lower spherical might have a stud that could be used for roll center adjustment?
-Will there be any provision for or adjustment of the front and rear bushings to get them on the same axis, so that you could run solid bushings, not just poly? This would be a boon to the road racing community and a good selling point for the drag community.
-Can we see a close up of that rodend?
-These would be a great for AX, but.... pretty sure you'd get screwed in classing- probably SM/SMF. But for those already running aftermarket turbos, why not?

 

@CorkSport - Derrick

What's the chance you have a pair of these sitting on a shelf?

 

We do not. We are revising the design per peoples feedback and putting a spherical bearing in the front mounting location. This has set us back a few months.

-Derrick

 

Definately not something I NEED at the moment, but like always, thanks for continuing the development of aftermarket parts for us.

 

Not something I need since my Speed is a street car/roll racer and will always be but thanks for putting out new parts. I was wondering if someone would eventually make lighter rear lower control arms to shed weight etc.

 

I will say I used to have a Nissan Maxima that I slightly modified. The control arm bushings went out at one point and I replaced them with Energy Suspension urethane ones.

Believe it or not, I felt it tightened the front end up a bit. Granted that was going from busted bushings to new upgraded bushings, but I believe there are some benefits to this for sure.

 

OMG yes i want these and will buy them.

 

Hmm....
*Strokes neckbeard*

 

Following up with this. Would there be more interest int his if the control arms were designed to correct the LCA angle for lowered cars? With our current design we can adjust the length of the pin/shaft that goes through the spherical rod end and into the hub. This would essentially reset the roll recovery of the suspension that is lost when the car is lowered.

 

Well, yeah.

 

@MS3brohanna @mattyhawk @macdiesel @Maisonvi ... And lots of others I haven't thought of.

Yes please. And a control arm that has less compliant bushings on a single axis.
If retain the mechanism to pull the ball joint in, you could effectively reduce the front track width (if using camber plates), which would be a boon to the drag 3 crowd, which often has to run larger spacers to get 15" wheels to fit.

 

Very interesting. I assume this would be compatable with a whiteline anti lift kit? (Looks like it would be but still curious.)

I'm supposed to be done with modding, but I still need to drill out my shock towers for adjustment with my camber plates and get a good alimgment. And now these...

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After running my roll center modified LCAs for something like two years, its not simple to adjust. It would need to be multi position adjustable. CS would have to develop bumpsteer adjusters. Biggest issue is interference with the rotor, which pretty much requires spacing out of the rotor if roll center is adjusted more than 10mm out.

 

If you end up doing a run of these, I'll participate and get a set.


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