Recent content by Rick Stevens

  1. R

    Post your finished projects!!!

    Thanks. Yes sir, we built the frame. Built one a while back for my kid, and it generated lots of interest when my customers would stop by. I figured I'd put a few together and see what happens. Worst case scenario, me and my guys will have a blast on them. Wanted something different, like a...
  2. R

    What thickness should my steel be for making the frame for a go kart that’s going to be carrying me plus a roll cage

    If you are going to tie it together with a cage and some triangulation bars , then square tubing will work fine.
  3. R

    What thickness should my steel be for making the frame for a go kart that’s going to be carrying me plus a roll cage

    Are you planning to tie the lower frame section together with some sort of roll cage? If not , you could use 16 guage 1'' x 2'' rec tubing and stand the 2'' side up for your main perimiter frame. Same tubing laying flat for your crossmembers and/or diagonals. It would provide alot more...
  4. R

    What thickness should my steel be for making the frame for a go kart that’s going to be carrying me plus a roll cage

    Depends on how much weight you are talking about, and the overall design you have in mind. Round tube, square tube and type of steel also matter. Do you have any drawings of what you want it to look like?
  5. R

    Post your finished projects!!!

    New toy I just finished up. 4130 frame with a 420.
  6. R

    Finished my son's kart

    Thanks. The design of this one kind of developed as we went along, but it turned out pretty good. We had so much fun building this one, been thinking about building a slightly bigger one so i can ride with him.
  7. R

    Finished my son's kart

    We use er70s2 for filler rod. #6 cup with a gas lens and 3/32- 2% tungsten. Very low amps, 60 -70 range. The moly will have a paper thin mill scale that you can remove with a good scotch brite pad. You don't have to remove it, it will weld fine, but it sure does make the weld nicer on the top...
  8. R

    Finished my son's kart

    This. On the NHRA chassis we build the most common size tubing is 1 5/8'' x .083 wall 4130. It weighs 1.3lbs per foot. To get the same strength on dom you would have to use 120 wall which is right at 1lb per foot heavier. ---------- Post added at 06:34 PM ---------- Previous post was at 06:28...
  9. R

    Finished my son's kart

    The larger diameter tubing is 1 1/4'' x .058 wall 4130. The smaller stuff is 1'' x .058 4130. Turned out heavier than I wanted (the bare frame is 84lbs) but momma insisted on the roll over structure. Thanks.
  10. R

    Finished my son's kart

    My son and I finished our first kart this weekend. We've had a lot of fun building this and are looking forward to the next one. I very much appreciate all of the knowledge and wisdom that is available here. It helped us out a lot. Horrible timing with the weather though, after about an hour of...
  11. R

    Another newbie

    Yes sir, all tig. No pre or post heat, Same process we use on the door car chassis (drag race). We use 6736b condition N tubing with a er70s2 rod.
  12. R

    Another newbie

    1 1/4'' x .065 wall 4130 for the upper and lower main rails, side verticles, and rear bars. Everything else is 1'' x .058 wall 4130. I tend to over build things most of the time. It's heavier than I would like (221 dry) but with a 5 point harness, the boy should be fairly safe. That makes momma...
  13. R

    Another newbie

    Yes sir, me too, BUT the wife wanted some sort of roll over protection other than the main hoop. Didn't want to add the extra weight, but didn't want to get her all reved up if he does roll it. Might build another one with the main hoop brought forward so the driver is completely under it and...
  14. R

    Another newbie

    Hello from Santa Fe Texas. Picked up all of the parts for my sons go cart (minus frame) as an early Christmas present. It has been a fun project working with him on the build. I very much appreciate all of the advise that is avaliable on this site. We've learned a lot but still have a lot to...
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