Seam welding rear shock towers Options

[yeahmag]

I’m moving up from 225lb to 300lb springs in the rear to try and combat the rear rolling over and the large amount of front, inside wheel lift I’m getting. Is there a general rule of thumb for when I should seam weld the rear shock towers?

[yeahmag]

Please! Ask away! Debate!

So, we are having rear traction issues due to the car rolling around in the rear. The rear is rolling over enough to cause issues including the front wheel way off the ground, all the time, and (we think) rolling over the outside rear tire enough to break traction.

Traditionally, autocross cars don't run a rear bar unless they have an LSD (which I do not). It's our opinion (my co driver is a hot shoe and worked for HRG as a tech and knows more about suspension theory than I ever will) that we need more spring to help plant the rear and stop the excessive tripoding.

I personally think that I will actually distribute the weight overall better. If I do end up defeating some absolute traction at the back, I feel the rear end will be more predictable than what it is now. It's really sloppy back there now...

We ran a ton of front bar to try and combat this (working the diagonals), but have reached the limit of what that can do.