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  • erod
    started a topic roll bars

    roll bars

    I build this roll bars for a c3 convertible corvettes, that fit in years 1968-1975 models.this are made out of aluminum sch 40, which I used my hossifeld bender #2,I also used my lincoln 300amps tig welder to weld my roll bar.
    Attached Files

  • chrisgay@sbcglo
    replied
    Originally posted by SM Racing View Post
    No the 917s were later cars. Nothing like 200mph with 1000+hp in a 1700lb chassis.

    I would rather have the 962. It was a better car, but I still mourn the days gone by when ***** to the wall racing was what it was about. Porsche spent more money than anyone else in the world to win.
    You betcha.

    I'll never forget Jan Lammers and Martin Brundle maxing out the Jaguar XJR GTP at the Del Mar Grand Prix back in the day. Another one was Klaus Ludwig tearing up the corkscrew at Laguna Seca in the Ford GTP (4 cylinders!). Wow! I was all of 12 or 13 years old.

    I hate to say it, but ALMS seems so watered down compared to IMSA GTP.

    Send me a PM when you get that 962C in your shop.

    I still have the brochure when I was at the vintage races at Laguna Seca back in '82. Imprinted in my memory is Jacky Ickx flat out in the Jules 936. That's what I'm talking about! What a sound!

    Leave a comment:


  • SM Racing
    replied
    No the 917s were later cars. They were open and closed cockpit cars. A little safer than the early open wheel cars. Nothing like 200mph with 1000+hp in a 1700lb chassis.

    I do all kinds of race fabrication, including some vintage work. Unfortunately those pics were not in my shop. I would rather have the 962. It was a better car, but I still mourn the days gone by when ***** to the wall racing was what it was about. Porsche spent more money than anyone else in the world to win. Magnesium chassis, titanium uprights, magnesium transmissions, berrylium pistons, the best and lightest of everything.

    Leave a comment:


  • Broccoli1
    replied
    Safety First

    Leave a comment:


  • Broccoli1
    replied
    is this the car with skin on it?

    Leave a comment:


  • chrisgay@sbcglo
    replied
    Originally posted by SM Racing View Post
    Believe it or not, Porsche used to build tubular space frames from aluminum tube and even did a few chassis in magnesium tube. Not sure how they were welded, but the welds were hideous.



    http://www.pbase.com/917carl/image/21035421

    http://www.pbase.com/917carl/image/20969720
    Yeah, safety wansn't as paramount back then as it is today.
    I've heard that they didn't even tell the drivers about the switch to magnesium frames because they were already freaked out enough driving a 200 mph car with an aluminum frame.

    But, hey, when you look at the suspension and brakes on a lot of older racing cars, you suddenly get a lot more respect for the drivers of yesteryear.

    SM Racing, are those chassis in your shop? Where are you located? Do you purely vintage? Fun stuff.

    Leave a comment:


  • SM Racing
    replied
    Believe it or not, Porsche used to build tubular space frames from aluminum tube and even did a few chassis in magnesium tube. Not sure how they were welded, but the welds were hideous.



    http://www.pbase.com/917carl/image/21035421

    http://www.pbase.com/917carl/image/20969720
    Last edited by SM Racing; 07-24-2008, 01:47 AM.

    Leave a comment:


  • ctrhenry
    replied
    i dont know what the fuss is about , those are the nicest mobile coat racks i have seen in a while

    Leave a comment:


  • Bowtieman31
    replied
    Aluminum! OMG! I hope you're not selling these things as ROLL BARS, Crash Bars or anything else. Obviously these are pure decoration with absolutely no function. Looks like you're hanging your a$$ way out there for a liability suit. My god man, what are you thinking?

    Leave a comment:


  • storts
    replied
    Roll Bar

    Id me more afraid of the attorneys,,thats a gift for them,in my eyes,,But my option!!

    Leave a comment:


  • FATFAB
    replied
    Originally posted by Aerometalworker View Post
    Actually is monocoque meaning "single shell" , I believe coined around the first world war. Ok Ill shut up now
    Sorry domt speeek emglish to goodly and now u's spekting good fern langage



    lol

    Leave a comment:


  • Badd00SS
    replied
    Yikes....

    I would not want to be the driver of that vette, no offense. When I built my rollbar, I was having a tough time using the .134 ERW steel tubing that was supplied in the kit. I was expecting DOM tubing....

    But Aluminum, just doesnt cut it in my opinion.

    Leave a comment:


  • Aerometalworker
    replied
    Originally posted by FATFAB View Post
    Now hold on guys.



    Once upon a dead racer Porsche made monococks from aluminum tube and sheet aluminum. after sever deaths and some angry competitors they went back to a more durable construction material. Vary fast cars btw
    Actually is monocoque meaning "single shell" , I believe coined around the first world war. Ok Ill shut up now

    Leave a comment:


  • FATFAB
    replied
    Now hold on guys.



    Once upon a dead racer Porsche made monococks from aluminum tube and sheet aluminum. after sever deaths and some angry competitors they went back to a more durable construction material. Vary fast cars btw

    Leave a comment:


  • monte55
    replied
    I have to agree with all the previous posts except #1....I calzem as I seezem
    maybe they could be reinforced with balsa wood????????????

    Leave a comment:

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