Anyone have experience with these control arms?

90 05 Mazda Miata MX5 Front Upper Control Arms | eBay

 

Ebay tubular control arms.........wonder how many people these cheap pieces of crap have killed allready

 

@gt2560rmiata: Do you have any first-hand experience with these parts, or are you just speculating? -Are there any examples of failures?

 

Too cheap for me to trust the quality. Though they are FUCAs, which arent exactly highly loaded like FLCAs. And they do look pretty over built. Might be passable on a car not running hoosiers.

 

What's wrong with the OEM ones?

No camber control i'm guessing?

 

Can't get that mad tyte JDM -12° camber with the stockers.

 

You cant with those either unless you have hella poke.

 

I'd have a hard time trusting those bolts that hold the camber settings in place with the way I drive...

 

+1. I'd rather not have dynamic camber while on course at an auto-x.
Although that looks like the scheme most camber plates for strut cars use. I'd rather see one built using the MOOG ES2074R tie rod. I have a couple sitting in the garage, just need to get off my lazy butt and fab one.

 

Is there an advantage to having the camber adjust in the upper arm vs the lower arm?

That setup doesn't bother since I've run camber plates on Mac Strut cars plenty of times, but typically with Miata's you see camber adjustment on the lower front and upper rear with the arms?

Curious as I'm running V8R front upper arms currently. With stock everywhere else.

 

Up front, assuming you're adjusting camber to get more negative, upper arms hurt tire/wheel to shockmount/swaybar clearance, adjusting with the lower just makes the car a touch wider.

 

So you've confirmed my thoughts that using the upper arm isn't the best solution.

I mainly bought the uppers sine my ball joints were more trashed than I was willing to accept and the V8R arms were the same price as OEM....this guy isn't a fan of replacing ball joints In the stock arms

 

I need to go back and remodel a longer lower arm, but by adjusting the upper arm shorter, you're making the camber curve more steep. This can be a good thing since with stiffer springs, the load vs camber curve isn't the best.

 

Can you elaborate on this? Does the ES2074R have the same taper as the upper control arm?