frame/seam WELDING HELP - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

blu808 · 12-24-2003, 01:33 AM

The proper way to seam weld a chassie is to drill a hole in the top layer sheet metal between the stock spot welds. dont drill through both layers. Then use a mig welder, or arc welder if you are good enough not to blow through the metal. And fill the new holes. Drill at least a 1/4" hole. Do this everywhere you can. Also eventhough some people do stich weld it is not as efective and just adds weight. Spot welds are the way to go. I know all this from being the production manager of MBO's speedvision SCCA world challenge cars. I have built a few cars for them and thats how its done. Hope this helps.

Also rivits wont work. Sorry. but they will just become loose and start rattling. If they dont become loose then they werent doing anything anyway.

Luke

12-24-2003, 01:33 AM	#1
blu808 Post Whore! Join Date: Dec 2002 Location: Campbell, Ca Age: 42 Posts: 5,010 Trader Rating: (3) Feedback Score: 3 reviews	Proper seam welding The proper way to seam weld a chassie is to drill a hole in the top layer sheet metal between the stock spot welds. dont drill through both layers. Then use a mig welder, or arc welder if you are good enough not to blow through the metal. And fill the new holes. Drill at least a 1/4" hole. Do this everywhere you can. Also eventhough some people do stich weld it is not as efective and just adds weight. Spot welds are the way to go. I know all this from being the production manager of MBO's speedvision SCCA world challenge cars. I have built a few cars for them and thats how its done. Hope this helps. Also rivits wont work. Sorry. but they will just become loose and start rattling. If they dont become loose then they werent doing anything anyway. Luke __________________