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torsion bars
https://slantsix.org/forum/viewtopic.php?t=62689
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Author:  sandy in BC [ Tue Aug 07, 2018 5:10 pm ]
Post subject:  torsion bars

I store a parts car at a friends. I can pay him to remove parts on the car for me.

The 78 Cordoba has a big block and likely has bigger bars than my 95# bars.

The bigger bars would likely be the #100 bars.

Is the difference worth spending $75 and some time to install?

Author:  Dart270 [ Tue Aug 07, 2018 6:05 pm ]
Post subject:  Re: torsion bars

95# to 100# would not be worth changing, but I bet the difference is bigger than that.

Lou

Author:  sandy in BC [ Tue Aug 07, 2018 6:35 pm ]
Post subject:  Re: torsion bars

https://www.forabodiesonly.com/mopar/at ... 714994906/

I have the .940 bars,,,,, can get .960

Author:  Dart270 [ Wed Aug 08, 2018 4:05 am ]
Post subject:  Re: torsion bars

Maybe your friend can put a caliper on them before removing? I guess it's better than no change and it is possible you could notice a difference.

Lou

Author:  emsvitil [ Wed Aug 08, 2018 4:52 am ]
Post subject:  Re: torsion bars

A small diameter change makes a big difference.

The stiffness increase is to the 4th power.

A 1.1" diameter bar would be (1.1 / 1.0)^4 or 1.4641 times stiffer than a 1.0" bar
(if the 1.0" bar was 100lbs, the 1.1" would be 146lbs)

Author:  Dart270 [ Wed Aug 08, 2018 5:26 am ]
Post subject:  Re: torsion bars

Yep, well aware of the 4th power dependence. Thanks, Ed. In this case, it's a very small diam difference and he gets a 5% rate increase.

Lou

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