ft/in? 0.0833

Do you mean lb/in?

 

hahahaha, nice.

 

Josh, per your request, here are the numbers according to the Puhn calculations:
Karcepts Front Sway Bar; 1.25" O.D.; 0.25" Wall
Hole 1: 755 lb/in
Hole 2: 842 lb/in
Hole 3: 947 lb/in
Hole 4: 1072 lb/in
Hole 5: 1215 lb/in
Hole 6: 1370 lb/in

However, I do not like this method of comparison. It works fine when comparing OEM sway bars that use the exact same endlink hole placement between all bars. But if you are trying to compare aftermarket bars that utilize endlink hole postions in different physical locations relative to the LCA, you can throw a lot of these theoretical comparison numbers out the window. Horizontal and vertical placement of the center section and even position of the endlink itself (if bolted on the front side vs. back side of the LCA) will additionally change things drastically.

Here is a prime example: On the Gendron bar set to Hole 5, it is possible to mount the lower part of the endlink on either the front or back of the LCA. At one inch of shock travel, the sway bar center section will see 5.35 degrees of twist when the endlink is mounted on the back of the LCA. However, if mounting the endlink on the front of the LCA (still at Hole 5 on the bar), the center section will see 6.24 degrees of twist at the same one inch of shock travel. That's a fairly substantial change in rate due to a subtle change in geometry.

To compare all these bars with any sort of accuracy; a physical test rig would need to be made (something we may try at some point out of curiosity, but not a priority).

Since the Karcepts and Gendron bars do use the exact same center section specifications, I can provide a decent apple to apple comparison between the two for you.

Below is how much angular twist a given sway bar center section will see at one inch of shock travel:
Karcepts Hole 1: 5.31 deg
Karcepts Hole 2: 5.57 deg
Karcepts Hole 3: 5.86 deg
Karcepts Hole 4: 6.19 deg
Karcepts Hole 5: 6.60 deg
Karcepts Hole 6: 7.18 deg

Gendron Hole 1: 4.53 deg
Gendron Hole 2: 4.70 deg
Gendron Hole 3: 4.85 deg
Gendron Hole 4: 5.16 deg
Gendron Hole 5: 5.35 deg (endlink on back side of LCA)
Gendron Hole 5: 6.24 deg (endlink on front side of LCA)
Gendron Hole 6: 6.45 deg

Hope that helps..

 

 

Do you have numbers for the Puhn calculation on the thinnest center section?

 

Karcepts Front Sway Bar; 1.25" O.D.; 0.18" Wall
Hole 1: 659 lb/in
Hole 2: 735 lb/in
Hole 3: 827 lb/in
Hole 4: 936 lb/in
Hole 5: 1061 lb/in
Hole 6: 1196 lb/in

 

Thanks for the quick response. These bars look very nice and very well thought through.

 

No problem. Let me know if you may have any further questions. And thanks; after 3 sets of prototypes and a year longer release date than anticipated, they should be good to go!

 

I wish I could convert degrees of angular twist into numbers. I was trying to make my question broad so other people could use the info posted but what I'm really looking for is...

"This setting on the Gendron solid bar is equal to this setting on the Karcepts bar"

More specifically what is setting 3 and 4 on the Gendron solid bar in relation to the Karcepts .25 hollow bar. I'm assuming full stiff?

 

^^^ I agree, since I dont understand these calculations.