looks cheap though. i wouldn't get it.

http://cgi.ebay.com/ebaymotors/Infin...76413182QQrdZ1

but people are always complaining about how much the other two are for our cars...lol

 

wow........... fitment looks great...lol. i always buy cheapo stuff, but i would not buy this'

 

Hmm. Looks good in that pic. Even if it were just for looks it makes a nice add-on.

 

that's the only reason i woud get this one, lol. i wish i was ballin enough to get the arc one.

 

Hahahahaha. That thing is rediculous.
I hope nobody expects to actuall buy this and install it for any other reason other than looks. And IMO, that thing couldn't look any more cheezzy. Basic geometry and triginometry would determine that this thing is non functional at best, and could possibly bend or crack the sheetmetal area where it gets mounted to. Whomever designed this brace and its flimsey mounting brackets had no idea how much the front of these cars actually flex and twist.
Believe me, I am all for someone comming out with a STB that will work for these G's the way that mine does, but haven't seen one yet, even the ARC bar I have tested for these cars had to much flex to it, and was better suited for eye candy than an actuall performance part.
I for one do not believe in adding a non-performing performance part. The part must add some sort of benefit other than looks, but if it can do both then all the better.

 

^^what are your bars made of? are they ti?

500 installed, right? powdercoated any color?

 

Timeout, you have a product and profit motive to say what you have.

How is your system of measuring flex any more bankable then a gut feeling?

Thing about slamming someone else is that is opens the door for the spot light to be swung your way. Vs the ARC bar, how is your spider leg system in of itself not going to flex away 95% of the movement it's asked to control? I'm not talking about gut feelings, I'm not talking about review's. I'm talking about building a jig to measure force and movement, I just don't see the way the leg's are setup not flexing.

 

My STB's are made of 4130 chromolly, which is stronger and more torsionally rigid than ti. Yes, the price for mine is $450 plus $50 if you want it installed(recommended).

 

I see your point.
FYI, there is very little, if any profit margin in there STB's that I make. I use rather expensive material ($73 a foot), and powder coating and fabrication is not cheap. So your whole theory of profit doesn't hold water. I am not making these STB's to get rich, believe me If these were my source of income, I would starve. Hahaha
Gut feeling?..... hahahaha
I hold a mechanical engineering degree, and have an extensive aerospace engineering background. I have designed several structurally reinforced products for several companies that meet or exceed strict government tests for structural rigidity, flexural rigidity, etc.
I am not intending on slamming anyone here. If I see a relatively unsafe product like this one, I feel obligated to call upon it.
Believe me, I have designed much more complex parts than this STB. I asure you that given the length, material rigidity (.090 aircraft grade 4130 chromelly) and the aspect ratio, and the given ratio's and axis's of the mounting points of this braces mounts, ummmm pretty sure that this STB will withstand as much as, if not more lateral G-forces than these vehicles (G35's) will ever see, like 4 times as much.

 

Scott:

Purely for my benefit and education, could you explain to me from a scientific point of view, but still in layman terms, why the ARC bar is not functional? Not trying to debate anyone or anything of that sort, just curious. Thanks.

 

No offense, but you sounds exactly like a fresh college grad kid with "I have a degree"-itis.

I think all of the strut bar's offered for G35's are mostly for eye candy, seeing how far away from the strut tower you have to make them. But you know, if ppl want to spend $500 on em, then by all means.

And did you mean chromoly/4130 steel? I used to work on race car frames with my friend, and iirc he was getting it for: 90" for $100...thats a bit different than 12" for $73.

Don't get me wrong, I'd love to try out one of these bars but the price is just way too high IMHO

 

ps for that ebay auction, check the last purchase...it was the strut bar. Guess he didn't like it too much

 

So have I But my degree is in EE. Yet I work for a Landscaping Architecture firm designing their lighting layouts. However, I do have some structural engineering experience as well from working for a structural engineer early into my career; now engineering golf course bridges for my landscape firm, LOL.

The hard hardest part of engineering strut bars is measuring torsion and sheer taking into account the material, and it's density. Of course there other factors like compression and sag, and some other crap. I dont have the fabrication capabilities, but I believe I would have enough "know how" to engineer one given If I were given the tools to measure pre and post fab. It's things that a common technician wouldnt completely understand, and only go by the seat of their pants. Too bad I work for a landscape firm

Engineers' engineer : Technicians tune - Scott is a good example of someone who can do both.

Now if only you guys can confirm a fitment for the Turbonetics, I would go for VRT's.

PS. Can I get a cookie? LOL

 

Message from the ebay seller:

yikes!

 

The ARC bar for these cars is made in an arc-type shape which lends itself to flexing. Common knowledge will tell you that any given material is much more resistant to flexing if it is straight rather than bent in an arc (bow-type) shape. furthmore the ARC bar is made of a titanium blended alloy which is nice and rather light, but a far cry from the aircraft grade 4130 chromolly material formed and shaped (airplane wing shaped) the way the material I use is. I also do not think it should have a hinge type connection right where you would need the most support.
Not knocking ARC as a company, they do seem to make nice stuff, atleast someone else is taking the time to make these much needed braces for the G's. ARC's STB looks very nice and does add a bit of added rigidity to the front of these cars, just not near as much as they could, IMO.