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Gouging interest in (ballin) boxed aluminum control arms NSFW

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Gouging interest in (ballin) boxed aluminum control arms NSFW

 
Old 06-18-2018, 09:49 PM
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Default Gouging interest in (ballin) boxed aluminum control arms NSFW

Made by this company (local to me)

https://www.hcrracing.com


Would retain oem bushing sizes to maintain compatability with sadfab bushing kits.

I would not be selling them, Im just rounding up market interest to see if enough people would put deposits down (or preorder) for hcr to make the batch.

Full control arm kit estimate 2500-3000 dollars.

Can be powdercoated any color for an additional fee.

Please state your miata model if interested.

ALSO, what options/features are important to build into the design?
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Old 06-18-2018, 10:23 PM
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The most important feature for the front and rear uppers is lack of contact with the unibody at full bump. That’s one of the hardest parts, since it’s at odds with getting good geometric stiffness and requires a car (not just arms and/or subframe) to prototype.
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Old 06-18-2018, 10:40 PM
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Originally Posted by afm View Post
The most important feature for the front and rear uppers is lack of contact with the unibody at full bump. Thatís one of the hardest parts, since itís at odds with getting good geometric stiffness and requires a car (not just arms and/or subframe) to prototype.

That makes sense. They would have my car (2001 ls) and Im sure we could get other models for fitment.

Are the control arms 80-05 all the same?
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Old 06-18-2018, 10:50 PM
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Originally Posted by afm View Post
The most important feature for the front and rear uppers is lack of contact with the unibody at full bump. Thatís one of the hardest parts, since itís at odds with getting good geometric stiffness and requires a car (not just arms and/or subframe) to prototype.
I chose the V8R rear upper tubular control arms for that reason. It seems to be the limiting factor in the rear.
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Old 06-18-2018, 10:50 PM
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Originally Posted by thumpetto007 View Post
That makes sense. They would have my car (2001 ls) and Im sure we could get other models for fitment.

Are the control arms 80-05 all the same?
Mazda added bracing throughout the years and changed the sway bar tabs and ball joint studs, but externally those changes don't make a big difference.

The biggest geometry for interference is that the FUCA pivot tube is in a slightly different location on NB subframes, which changes when FUCA-to-body contact could happen. Also, there are sheetmetal differences in the unibodies around the rear shock mount area.
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Old 06-18-2018, 10:54 PM
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Why would you even entertain such an endeavor Thumpetto? I see one off unique pieces from a company not committed to the brand. One and done and run. You’d be hard pressed to duplicate or exceed the efforts of V8R. The likelyhood of unforeseen problems remains high!
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Old 06-18-2018, 11:49 PM
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I have a dream

Last edited by 18psi; 06-20-2018 at 10:35 AM.
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Old 06-19-2018, 03:03 AM
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Originally Posted by k24madness View Post
Why would you even entertain such an endeavor Thumpetto? I see one off unique pieces from a company not committed to the brand. One and done and run. Youíd be hard pressed to duplicate or exceed the efforts of V8R. The likelyhood of unforeseen problems remains high!
I've been in their facility, they do everything in house from design, to completed product. It would be very easy for them, especially since they wouldnt be doing any geometry calculations, or shock development.

maybe the 3k estimate is on the high side...

Anyways, I feel the v8roadsters arms are heavy, and cheaply made, so Id like to see if HCR can provide a super high quality alternative. The alloy they developed combined with the box style would drop pounds off even a billet aluminum piece, and be much stronger.

I guess I just saw an opportunity to further development on our special little hair salons, and wanna go for it.

They also have INSANE customer service, like, to the tune of driving their own off road vehicles to a customer stuck in the boonies to get them running again.

So, what about any adjustment? Should there be moveable ball joints or something?
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Old 06-19-2018, 06:27 AM
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Proprietary Tab and Slot. Right. Nothing proprietary there. Also no way they developed their own alloy. There are about 10 other alloys besides 4130, easily available.

An aluminum arm set would require post heat treatment, not a cheap endeavor, I've had it done. The amount of fixtures needed to build a set of arms would be massive. Build fixtures, then heat treat fixtures, laser parts, bed, weld, heat treat...I don't see them costing less than 4k. I wouldn't touch that project for less.
so they talk a great game.

edit...Billet aluminum arms? Anyone ever price 2x 24,24 chucks of aluminum? Yea, not cheap.
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Old 06-19-2018, 01:12 PM
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Originally Posted by k24madness View Post
Why would you even entertain such an endeavor Thumpetto? I see one off unique pieces from a company not committed to the brand. One and done and run. You’d be hard pressed to duplicate or exceed the efforts of V8R. The likelyhood of unforeseen problems remains high!
If they can ship on time and get the order correct the first time, there is a market niche to be filled vs V8R.
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Old 06-19-2018, 02:54 PM
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I feel this method of construction is superior to tubular parts.
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Old 06-19-2018, 03:22 PM
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Originally Posted by burdickjp View Post
I feel this method of construction is could be superior to tubular parts, but also costs 5x's as much.
Fixed for you
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Old 06-19-2018, 03:35 PM
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is it time to talk about billet Inconel control arms?
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Old 06-19-2018, 03:53 PM
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Have a bunch of experience with many alloys and really don't get why anyone would even consider aftermarket welded aluminum control arms for a Miata?

Steel & titanium yes. Aluminum & carbon fiber no.

Are they even legal in most race or drift classes?

I just don't see a market for a cycle life limited suspension part?
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Old 06-19-2018, 04:02 PM
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Oh, I just thought they would be better. Nevermind.

I just look at many of the nicer oem cars, even newer miatae, and they all have aluminum arms. Maybe i need to upgradr cars?
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Old 06-19-2018, 04:11 PM
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Originally Posted by thumpetto007 View Post
Oh, I just thought they would be better. Nevermind.

I just look at many of the nicer oem cars, even newer miatae, and they all have aluminum arms. Maybe i need to upgradr cars?
They don't have welded aluminum arms.
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Old 06-19-2018, 04:12 PM
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Originally Posted by thumpetto007 View Post
Oh, I just thought they would be better. Nevermind.

I just look at many of the nicer oem cars, even newer miatae, and they all have aluminum arms. Maybe i need to upgradr cars?
Those aren't billet OR plate construction. They are cast. Totally different
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Old 06-19-2018, 04:13 PM
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Another great idea, beaten to death by a gang of ruthless facts.
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Old 06-19-2018, 04:18 PM
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Old 06-19-2018, 04:20 PM
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Originally Posted by thumpetto007 View Post
Maybe i need to upgradr cars?
You probably have a good insight into that...
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