How do you tube frame a unibody car?
03-05-04, 08:52 PM
#1
How do you tube frame a unibody car?
May seem like a dumb question, but I was reading though Grassroots motorspots magazine today and in the classifieds there were ads for a couple first gens that had been tubeframed. How exactly would you go about this with a unibodied first gen? I can see how you could make everything forward of the firewall work as tubing, but what about the back end? Seems like it wouldn't work very well. Just curious.
03-06-04, 04:45 AM
#4
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it's a racecar used in sweden. there's a lot of pictures here: http://www.wankeltrim.se/docs/byggbilderm.html
(its in swedish, but just click on the links)
(its in swedish, but just click on the links)
03-06-04, 12:50 PM
#5
Tennis, anyone
That IS badass,, there doing the 'rolling chasis' . the cars frame doesn't need the body,,like the off road trucks racing, the body panels fly off when tagged, nascar cars too, to tube frame a unibody frontend is hard to do, for,,,say joe bob off the street. mounting points or 'tabs' and all geometry must be right-on the money. to tube frame the rearends is much easyier. for
a good sub frame on either end the tubing will have to
tie in with the interior cage. 6 point, 8 point,,okay,,10 point is the best. and thats using cro-mo.
a good sub frame on either end the tubing will have to
tie in with the interior cage. 6 point, 8 point,,okay,,10 point is the best. and thats using cro-mo.
03-06-04, 03:25 PM
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[QUOTE]Originally posted by 81Rex6port13b
talk about a light *** car. i wonder what it runs in the 1/4 with a stock 12a? [/QUOTE
it isnt THAT light...
990kg, or about 2200 lbs ready for racing, including driver and everything..
talk about a light *** car. i wonder what it runs in the 1/4 with a stock 12a? [/QUOTE
it isnt THAT light...
990kg, or about 2200 lbs ready for racing, including driver and everything..
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03-06-04, 03:26 PM
#8
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realy? i figured it would be a lot lighter then that. i was thinking more like 350-400lbs. i didnt know the tubing was that heavy. hmmm learn some thing new every day.
03-07-04, 12:41 PM
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huh.. i didnt know that.
any one ever read that atrical i think it was in sports compact car where they took a sentra and basicly striped the hell out of it. cut off the top. and had like a motor, part of the frame, and a seat. it ran like a 13.xx on a stock motor lol.
any one ever read that atrical i think it was in sports compact car where they took a sentra and basicly striped the hell out of it. cut off the top. and had like a motor, part of the frame, and a seat. it ran like a 13.xx on a stock motor lol.
03-07-04, 01:06 PM
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steel tubing isn't that light 
the thin sheet metal used on unibodies is actually fairly light. I wouldn't think you could shave too much off by going to a tube frame... probably most likely just used for ease of repair/structural integrity
the thin sheet metal used on unibodies is actually fairly light. I wouldn't think you could shave too much off by going to a tube frame... probably most likely just used for ease of repair/structural integrity
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