i have read alot of people seam welding their chassis to stiffin it..i am wondering what exactly needs to be done and everything else i need to know because i would really like to do this this winter since my car is stored.

thanks in advanced

 

Remove the sound deadning in the area to be welded, prep the surface (sand it down, or grind it down to bare metal), weld the panels together...

There is much, much more to it than that, but that is the gist of it. Honestly, I opted to stitch weld the rear of my chassis as oposed to seam welding it. I wanted there to be some flex so as to avoid breaking welds all of the time.

Another alternative (and very easy to do) is to rivet the chassis as oposed to welding it. It more or less is the same structuarly as stitch welding it, but much easier to do.

 

yeah i would stitch weld it. thats how im doing my fc. the rule of thumb is weld and inch, leave an inch gap, weld an inch, etc

 

Another aspect that I left out (partially due to the fact that it isn nearly impossible to explain chassis prep over the internet) is that you need to drill a hole through the first layer of metal (where the two layers overlap) and fill in the hole with weld and stitch the area. That gives the weld more physical size and strength, and allows the two layers to be welded directly to one another. This is the reason rvieting is a good alternative... it sort of does the same thing. Anyhow, did that make any sense?

 

riveting is fine, but welding looks better imo

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by whitecomet &raquo;</TD></TR><TR><TD CLASS="quote">riveting is fine, but welding looks better imo</TD></TR></TABLE>

No argument there. Plus it sounds cooler to tell people you stitch welded your chassis, as oposed to: "I went to town with the rivet gun"

 

so i just gut my interior remove all sound deadoning and then stitch weld all the inside??

 

yeah man go ape ****

 

make sure the car is completely level on flat ground before you weld