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Re: My JustSuspension 1" T-bars - 1 down, 1 to go....
[Re: BigBlockMopar]
#1705803
03/13/15 01:11 PM
03/13/15 01:11 PM
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Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
Mopar Mitch
pro stock
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pro stock
Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
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BBMopar -- The SB will always give better handling as its considerably lighter in the front end. Of course, the BB offers so much more torque.
If you ever get those FF 1.12 TBs and install them, you'll really like them!
A friend (John Sandberg) has 1.14 TBs in his original-owner daily driver 340 4spd fastback BCuda Formual S, with Konis, and 16x8 rims 245-50-16 Yokos and the car rides and handles great.
Brian Garcia (aka Cudapilot) has 1.18 TBs in his vintage-race BCuda GT1 car... car handles great on the track!
Mopar Mitch
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
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Re: My JustSuspension 1" T-bars - 1 down, 1 to go....
[Re: BigBlockMopar]
#1705804
03/16/15 01:04 AM
03/16/15 01:04 AM
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Joined: Jan 2003
Posts: 4,395
The Pale Blue Dot
Skeptic
master
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master
Joined: Jan 2003
Posts: 4,395
The Pale Blue Dot
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Quote:
The day after the bar broke I already decided to order a pair of 1.12" bars from Firm Feel. 
But since they were in back order at the time I still haven't seen them.
My Dart still has the SB and I recently upgraded to an alum 4bbl intake from the cast iron 2bbl intake.
But I still want to add some reinforcements like inner fender and radiator support braces and front/rear torque boxes to firm up the body a bit more.
You may want to get in touch with them. I've been e-mailing them about t-bars for my car and according to Matt @ Firm Feel the 1.12" A body bars are in stock- as of last Friday. That's the size that was recommended to me for my car and intended usage. 
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Re: My JustSuspension 1" T-bars - 1 down, 1 to go....
[Re: BigBlockMopar]
#2294642
04/26/17 07:23 PM
04/26/17 07:23 PM
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Joined: Jan 2003
Posts: 3,575
The Netherlands
BigBlockMopar
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,575
The Netherlands
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Hello...  Topic update! 2 years since the last reply in this topic, torsion bar no.2 has failed (on the passenger side). This bar was still one from the first purchase, not one of the replacement bars. At the time I only replaced the 1 broken bar since the warranty bars arrived. This time the failure happened under somewhat similar instance (cold morning, speedbump), only I encountered the speedbump faster than usuall this time. Also, the passenger side header had been rubbing the torsion bar for a while, as can be seen in one of the pics. Eventhough, I think I'm seeing similar, although to a lesser extend, material defects as with the previous failure. So now both 'warranty bars' are under the car, but I still like upgrade to a bigger bar in the future. Funny detail is that Just Suspension doesn't seem to carry these bars anymore on their site. Carnage pics;      
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Re: My JustSuspension 1" T-bars - 1 down, 1 to go....
[Re: Molloy]
#2299171
05/04/17 09:33 PM
05/04/17 09:33 PM
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Joined: Jan 2007
Posts: 7,664
IN
ahy
master
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master
Joined: Jan 2007
Posts: 7,664
IN
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The thing about T-bars, I'm sure all of you know, is that they take an insane amount of abuse, by design. They are hanging down there, totally exposed, for the life of the car. They will all have rock dings, impacts, dents, etc. I know have I have beat the living snot out of mine taking them off and putting them back on multiple times. As-manufactured they already have a pretty rough surface, so I don't think the little stress raisers from over-the-road abuse are going to have much effect. In a nut shell, they have a very high damage tolerance. I think it's pretty rare to even see broken bars in 40+ year old iron. They just don't usually break. At least that has been my impression having been in the hobby for 20+ years.
But when they do break, in only 1 YEAR after purchase, all sorts of alarms should go off in your head. I think we all agree that there are some fatigue features. But usually 70-80% of a fatigue life is consumed in initiating a tiny crack. 20-30% is consumed in growing/propagating the fatigue crack to final rupture. Maybe this bar started cracking 8 months after installation? What lowered the threshold to fatigue initiation?
And that long flat planar feature? What stress state would cause THAT?
I say infant mortality... Agree "infant mortality". Sounds like the seller does also as two bars were supplied. From the pics, looks like a couple areas of possible manufacturing defect. Firm Feel bars have done well for me (E). B/E bars are longer so 1" on an A is roughly same stiffness as 1.12" on a B/E.
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