Upper chassis stiffener info
Thread Starter
Member
Joined: Aug 2004
Posts: 484
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From: Lexington, SC
Car: 1986 Z28 Camaro
Engine: 350 with .440" lopey cam
Transmission: 6spd T56
Axle/Gears: Detroit Truetrac with 3.73 gears
Upper chassis stiffener info
I want to put one of those upper chassis stiffener bars on my camaro. I don't know the proper name for the bar, but it's the pipe that goes across over the engine and connects to the body next to the strut towers.
I don't even know where to buy one or the cost since I don't know the proper name for it, but from the pictures I've seen it looks like a pretty simple design and I think I could probably fabricate one myself.
With that said, would anyone mind taking some close up pictures of theirs (particular at the mount points and bend points) and tell me the dimensions of them? Length to bend from mount, length between bends, and length between mounts should give me enough information.
I'm guessing the pipe itself is not a real heavy duty pipe, probably something around 1 1/2" 40 schedule pipe I'm guessing?
Thanks!
I don't even know where to buy one or the cost since I don't know the proper name for it, but from the pictures I've seen it looks like a pretty simple design and I think I could probably fabricate one myself.
With that said, would anyone mind taking some close up pictures of theirs (particular at the mount points and bend points) and tell me the dimensions of them? Length to bend from mount, length between bends, and length between mounts should give me enough information.
I'm guessing the pipe itself is not a real heavy duty pipe, probably something around 1 1/2" 40 schedule pipe I'm guessing?
Thanks!
Joined: Oct 2011
Posts: 475
Likes: 8
From: Houston, TX
Car: 1989 GTA, 2004 Z06, 2008 Expedition
Engine: L98, LS3, 5.4L
Transmission: 700R4, MN6, Auto
Axle/Gears: 3.23, 3.42, ?
Re: Upper chassis stiffener info
Go to Hawks Third Gen Performance and order the strut tower brace from them. They are great to do business with. I just ordered a ton of items from them and most of the stuff was here the following day. Talk with Steve.
Thread Starter
Member
Joined: Aug 2004
Posts: 484
Likes: 0
From: Lexington, SC
Car: 1986 Z28 Camaro
Engine: 350 with .440" lopey cam
Transmission: 6spd T56
Axle/Gears: Detroit Truetrac with 3.73 gears
Re: Upper chassis stiffener info
http://www.hawksthirdgenparts.com/ca...dercoated.aspx
This one almost looks like it might be meant to bolt on with the strut bolts? The ones I've seen always look like they are bolted in front of the strut towers.
I might consider buying one, but I could fab one for much cheaper. That thing only has about 20 dollars worth of material in it, and I could probably fab it in around a hour.
This one almost looks like it might be meant to bolt on with the strut bolts? The ones I've seen always look like they are bolted in front of the strut towers.
I might consider buying one, but I could fab one for much cheaper. That thing only has about 20 dollars worth of material in it, and I could probably fab it in around a hour.
Re: Upper chassis stiffener info
Hey Steven.
We sell strut tower braces and have some nice install pics.
http://www.umiperformance.com/catalo...roducts_id=126
Let us know how we can help with your project.
ramey
We sell strut tower braces and have some nice install pics.
http://www.umiperformance.com/catalo...roducts_id=126
Let us know how we can help with your project.
ramey
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Upper chassis stiffener info
You might wish to consider after market strut mount, those with spherical bearings, before adding an STB.
JamesC
JamesC
Joined: Aug 2006
Posts: 12,805
Likes: 107
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Upper chassis stiffener info
the stock mounts have rubber inserts, that deflect. They will continue to deflect with a STB installed, so its benefits will not be fully realized.
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Thread Starter
Member
Joined: Aug 2004
Posts: 484
Likes: 0
From: Lexington, SC
Car: 1986 Z28 Camaro
Engine: 350 with .440" lopey cam
Transmission: 6spd T56
Axle/Gears: Detroit Truetrac with 3.73 gears
Re: Upper chassis stiffener info
Plus as I said, with it being something I can easily fab myself with some spare material I have laying, was thinking about working on it some this weekend.
Re: Upper chassis stiffener info
I was working on a design upgrade for our caster/camber plates today. I had forgotten how cheesy the rubber mounts are when you're used to working with the spherical.
The cool thing about the suspension business is how modular everything is. Strut tower brace one day, sphericals another. Throw in a subframe connector or two, maybe a heavier rear bar to help the car rotate. Pretty soon you have a party...
I need to get to sleep.
The cool thing about the suspension business is how modular everything is. Strut tower brace one day, sphericals another. Throw in a subframe connector or two, maybe a heavier rear bar to help the car rotate. Pretty soon you have a party...
I need to get to sleep.
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Joined: Sep 2006
Posts: 2,118
Likes: 15
From: Houston, TX
Car: 1989 GTA
Engine: SuperRam 350
Transmission: Pro Built S/S TH700R4
Axle/Gears: 3.27
Re: Upper chassis stiffener info
But start with the spherical bearing strut mounts (Founders, UMI, Hotpart, Spohn) and then you have a solid foundation to connect to.
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Joined: Mar 2011
Posts: 2,893
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: Upper chassis stiffener info
Home-made STB under $25 easily if you can weld. Practically free if you can pick up scrap pieces of steel from work or have friends that can.

http://www.austinthirdgen.org/forum/...779&hl=tbi+stb

http://www.austinthirdgen.org/forum/...779&hl=tbi+stb
Last edited by BlackenedBird; Oct 28, 2011 at 10:53 PM.
Thread Starter
Member
Joined: Aug 2004
Posts: 484
Likes: 0
From: Lexington, SC
Car: 1986 Z28 Camaro
Engine: 350 with .440" lopey cam
Transmission: 6spd T56
Axle/Gears: Detroit Truetrac with 3.73 gears
Re: Upper chassis stiffener info
Home-made STB under $25 easily if you can weld. Practically free if you can pick up scrap pieces of steel from work or have friends that can.

http://www.austinthirdgen.org/forum/...779&hl=tbi+stb

http://www.austinthirdgen.org/forum/...779&hl=tbi+stb
Thread Starter
Member
Joined: Aug 2004
Posts: 484
Likes: 0
From: Lexington, SC
Car: 1986 Z28 Camaro
Engine: 350 with .440" lopey cam
Transmission: 6spd T56
Axle/Gears: Detroit Truetrac with 3.73 gears
Re: Upper chassis stiffener info
It's hard to tell in the pictures I have found and can't find measurements anywhere. Can anyone please tell me if these things are typically 3/4" or 1" pipe.
Thanks.
Thanks.
Re: Upper chassis stiffener info
Thread Starter
Member
Joined: Aug 2004
Posts: 484
Likes: 0
From: Lexington, SC
Car: 1986 Z28 Camaro
Engine: 350 with .440" lopey cam
Transmission: 6spd T56
Axle/Gears: Detroit Truetrac with 3.73 gears
Re: Upper chassis stiffener info
And yes it does look nice but I'm not willing to spend 170 dollars on something that I can make myself for less than 20 dollars. Granted mine will not have the fancy bushings in it, but even if I decided to add them I'd still be well under 170 dollars.
Not saying anything is wrong with your price, you are just matching what everyone else sales them for and probably only make a small profit from your suppliers price, but someone out there is making a killing in profit on these things lol
Re: Upper chassis stiffener info
If Schedule 40 is your first guess for fabricating these, I'd highly suggest buying the UMI pieces.
You should be asking whether they're HREW or DOM and what wall thickness?
The UMI piece, while it would probably work in my app, wouldn't look as clean without the TPI tucked up underneath. I will be fabricating my own when I get to that stage.
would 1 1/4" 10ga be sufficient, or should I step up to 3/16" wall DOM?
You should be asking whether they're HREW or DOM and what wall thickness?
The UMI piece, while it would probably work in my app, wouldn't look as clean without the TPI tucked up underneath. I will be fabricating my own when I get to that stage.
would 1 1/4" 10ga be sufficient, or should I step up to 3/16" wall DOM?
Thread Starter
Member
Joined: Aug 2004
Posts: 484
Likes: 0
From: Lexington, SC
Car: 1986 Z28 Camaro
Engine: 350 with .440" lopey cam
Transmission: 6spd T56
Axle/Gears: Detroit Truetrac with 3.73 gears
Re: Upper chassis stiffener info
If Schedule 40 is your first guess for fabricating these, I'd highly suggest buying the UMI pieces.
You should be asking whether they're HREW or DOM and what wall thickness?
The UMI piece, while it would probably work in my app, wouldn't look as clean without the TPI tucked up underneath. I will be fabricating my own when I get to that stage.
would 1 1/4" 10ga be sufficient, or should I step up to 3/16" wall DOM?
You should be asking whether they're HREW or DOM and what wall thickness?
The UMI piece, while it would probably work in my app, wouldn't look as clean without the TPI tucked up underneath. I will be fabricating my own when I get to that stage.
would 1 1/4" 10ga be sufficient, or should I step up to 3/16" wall DOM?
I plan to use 1" .120 pipe on it. My Dad is the steel fabricator, I just picked up a few welding and fabing skills working for him while I was in school. So I'll make sure he checks it out.
I'll probably be fabing my own subframe connectors as well considering how easy those are to make as well.
I'm sure UMI products are great for people that don't have the skill sets to fab their own, and I will probably be buying a panhard bar and lower control arms from them. But for the easy to fab pieces, I don't see any reason to pay more than the material costs and use my own free labor to make them.
Re: Upper chassis stiffener info
I fully agree with you. No sense paying a lot for what you can make yourself.
But have you checked the prices of high quality tube lately? How bout rod ends? Got a shop in mind to do the powder coating? Once you start adding it up, I think you'll come close to what the UMI ones cost. Or at least just as much as some of the cheaper non-adjustable ones cost.
But have you checked the prices of high quality tube lately? How bout rod ends? Got a shop in mind to do the powder coating? Once you start adding it up, I think you'll come close to what the UMI ones cost. Or at least just as much as some of the cheaper non-adjustable ones cost.
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