trailing arm stiffening kit Options

[scotty b]

Is it REALLY necessary ? I've done a couple of these but have yet to understand why. I have NEVER seen a trailing arm bent from anything otther than a hard collision. I see no way they could be twisting or flexing in any way in hard cornering. I'm curious if any of the hardcore racers have seen a true need for them. Anyone ever seen a ARM crack from use not rust ? Sure the consoles crack, the body cracks but the trailing arm ? Seems like unneccesary weight to me (IMG:style_emoticons/default/confused24.gif)


Talk amongst yourselves I'll check back in later (IMG:style_emoticons/default/popcorn[1].gif)

[Eric_Shea]

We do a very simple and easy mod for our customers that almost anyone can do.

I was told it added nearly 50% in stiffness and the bonus is, there's no weight penalty. I like it because it's inexpensive, simple, it works and it's fairly noninvasive.

Get a long bit and drill two holes straight through the arms. Then get a Step Bit and drill those holes out to 1" like so:
(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-1110-1362676444.1.jpg)

Weld in two 1" tubes to add lateral stiffness:
(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-1110-1362676445.2.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-1110-1362676445.3.jpg)

Paint or powder coat the arms:
(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-1110-1362676445.4.jpg)

We also add gussets to the shaft tube:
(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-a.xx.fbcdn.net-1110-1362676446.5.jpg)

I also added the bulkhead to inner mount bars on my car. Not sure of the overall effectiveness for a street car but, the car feels like it's on rails. (IMG:style_emoticons/default/wink.gif)