Drag Racing Discussions > Front Engine Dragsters
FED Build
lake_harley:
Thanks for the replies. I am building per chassis plans and using materials that should pass certification but I don't expect I would ever need it. You've answered my question and that is that certification pertains to only the cockpit/cage area. I thought I had read that somewhere but couldn't find it again.
Thanks.
Lynn
wideopen231:
On specs. I bought a copy of certification spec for 35 bucks. Cheaper than having to change something later on. JMO
lake_harley:
Got some tubing in today and to the naked eye it looked a little thinner wall than what I ordered. I de-burred the edge and checked the wall thickness. Yikes......010" - .011" under the "advertised" wall thickness! My long-time steel supplier said the steel industry is really a mess these days and I'd say there's no doubt about that. He's going to check other tubing in his stock to see if some is on spec. On the bright side I won't be needing that particular tubing for at least a few days, so I can continue some modest progress with what I have on hand.
I've been jigging up some of the cockpit area and bending tubing. Got far enough today to actually tack weld a few pieces together. Woo-hoo!
Lynn
THE FRENCHTOWN FLYER:
I had to go up a gauge size to insure the tube I used met NHRAs spec of .120" min for mild steel.
fuel749:
--- Quote from: lake_harley on December 28, 2021, 03:40:48 PM ---Got some tubing in today and to the naked eye it looked a little thinner wall than what I ordered. I de-burred the edge and checked the wall thickness. Yikes......010" - .011" under the "advertised" wall thickness! My long-time steel supplier said the steel industry is really a mess these days and I'd say there's no doubt about that. He's going to check other tubing in his stock to see if some is on spec. On the bright side I won't be needing that particular tubing for at least a few days, so I can continue some modest progress with what I have on hand.
I've been jigging up some of the cockpit area and bending tubing. Got far enough today to actually tack weld a few pieces together. Woo-hoo!
Lynn
--- End quote ---
4130 or mild?
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