Quote:
Originally Posted by curtis73
Unless you have mad CAD skills, skip the aluminum. Its much more expensive, very difficult to weld, and unless you do it just right, you have to use so much more material to get the strength you need that it won't end up being much lighter.
Hands down IMO, Chromemoly steel. Its a little finnicky to weld and has special proceedures, but if you're already good with a welder it should be no worry. Get your self a good joint jig, buy a whole bunch of CM tubing, and plan it out.
Just FYI, pound for pound, round tubing provides the most strength for the weight
I'm personally not good at it, but I know a racer in PA who builds his own. He makes two different ones: a full safety stock race version which weighs 800 lbs, and a superlight mini version that weighs 470 lbs.
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Thanks for your feedback.
What is CAD? I did a google search but came up with many results. I guess its a popular acronym.
So is Chromoly steel better than 1020 steel? I read somewhere that its best to use 1020 but Im not really sure. I wish I could find a source where they compare all of the different steels by weight and strength. That would be amazing lol.