CP Tri Strut Barr

IHI-RHC7

IHI-RHC7

"The Boss"
Apr 1, 2005
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IMHO, that design is the only design that makes any sense in stiffening up the chassis.
I have no personal experience with the manufacturer, though...
Good design, hopefully good quality, bad color ;)
 
ross1

ross1

New Member
Jul 14, 2005
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i have it in my supra, i think it does some good but not very noticable when you have the targa off, one of my next buys is gonna be a rear cp bar just to see if the two of them will work better together than one does alone, for the price also you can't argue with it, iirc it's a hell of a lot cheaper than the other ones (greddy, cusco and some of the others... btw you do have to drill holes in the firewall to get it mounted which i imagine might turn a few people off to it...

i like it, did wish it came in a diff color though

ross
 

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supra90turbo

supra90turbo

shaeff is FTMFW!
Mar 30, 2005
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I've always liked that STB. You're right about the color, Jake... Perhaps I'll buy it and have it PC'd with all my other parts...
 
screaminglemon

screaminglemon

))((
Apr 1, 2005
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mine is silver. i was expecting red but was pleasantly surprised when i opened it up to find it matched my paint. great quality, however realize this is not an adjustable bar and our cars are very old and may not still be in their original shape. in my case i had a small gap at the firewall that i used an aluminum plate to fill. not a huge deal for me but ymmv.
 
IHI-RHC7

IHI-RHC7

"The Boss"
Apr 1, 2005
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I didn't realize you have to drill for it..
That actually does more than turn me off to it and here's why.
Even the Do-Luck X brace bolts into factory bosses. Why does it matter?
Factory threaded bosses are there because that region of the car is stable enough that something could be braced to it. If there were pre-threaded bosses in the firewall, you could bet that the section of firewall in question was rigid enough to support the forces associated with the triangulation of the strut towers.
Since there are no pre-threaded bosses in that region of the firewall, there is nothing suggesting that the region of firewall in question has any structural rigidity whatsoever...

Basically, who's to say that under heavy cornering that brace isn't simply going to bend and tweak the firewall to its will. If the firewall were strong enough for a brace, I'd bet toyota would have A: ran such a brace on the Group A race cars. B: included those mounting points into the production vehicle due to homologation rules.
Thus the real answer to the question is whether or not the race cars ran one. I'm pretty sure they didn't as they had a weld in cage that extended to the front towers through the firewall.
With that in mind, I wouldn't run one without pulling the dash and verifying that there is some heft behind the firewall to support the forces from the brace.
[/rant]
 
ross1

ross1

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it's actually up in the high part of the firewall that seems to me is very thin, think right behind the wipers under the heat/ac vents on the top of the hood
 
supra90turbo

supra90turbo

shaeff is FTMFW!
Mar 30, 2005
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damn.. now that I think of it... that is really thin..
Just because there are holes doesn't mean that it's strong enough..

back to the drawing board..
 
Yellow 13

Yellow 13

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Apr 4, 2006
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It doesnt seem like the metals any thinner there then at any other point on the car (excluding the chasis of coures). Also considering its a side to side motion doesnt that give it alot of area to disperse the flex or w/e.
 
IHI-RHC7

IHI-RHC7

"The Boss"
Apr 1, 2005
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In order for me to feel comfortable "bolting" an item into the car that is a structural device, any holes used need to be threaded bosses intended for bracing the chassis. If there are little popped out holes in that flimsy section of the firewall, I'd steer clear. I'f they look to be robust threaded holes, then go for it!
 
IHI-RHC7

IHI-RHC7

"The Boss"
Apr 1, 2005
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I would find that solution acceptable. Just make sure your welded plate is welded to something strong.
 
C

cjsupra90

previously chris90na-t
Jun 11, 2005
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Actually the Cowl section is relitively strong, stronger then a lot think.

On another note, just because its a factory threaded hole doesn't mean that it is a strong point or any stronger then anywhere else. Just about all the threaded holes are just holes in the sheet metal with a nut welded to the back side.
 
IHI-RHC7

IHI-RHC7

"The Boss"
Apr 1, 2005
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True. But at least you know that something was at one point in time intended to be bolted there.
And in many cases, Do Luck brace, JIC lower brace, etc...
It actually accomplishes something to bolt something stiff between these welded nuts.
I agree that the cowl is strong, but is the actual sheet metal strong enough that the bolts wouldn't just tear out?
From my personal experience, bolting a tow bar to my supra to take it home from vegas, it's bad to bolt to sheet metal...
I pulled the front fascia and bolted into the actual bumper support with 3/8" grade 8 bolts and they tore through the support with 1" washers. I would not want a similar thing to happen to my firewall...
If, upon inspection the area looks beefy, then drill and bolt in with some washers and nuts on the back. But I'd have to see behind the dash before I'n consider that option.
 
ross1

ross1

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the bar itself comes with 4 bolts, 4 nuts, and 8 washers but there weren't any holes already there for it to "bolt" into, you DO need to drill to put it on.

ross
 
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