roll bar build
09-22-2009, 12:11 AM
#61
You know, not to be an *** that doesnt trust your engineering even if it is pretty bad here, but you probably value your life as a very pricey one. Is your life worth $400. The $400 for either a harddog or bossfrog?
Last edited by Sam Amporful; 09-22-2009 at 09:54 AM.
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09-22-2009, 12:15 AM
#62
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not to **** anyone off or anything, or to get flammed at even more, but if i roll my miata. wouldnt i die without a roll bar? so i mean its like i die any ways with or without this poorly built bar right?. so why not everyone just sit tight and wait for me to roll and see if i die or not. (this doesnt mean try and run my *** off the road to see if you can get me to roll, then stop and see if my bar holds up)
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09-22-2009, 12:17 AM
#63
^ agreed. The car will most likely never hit the tracks. i do plan on making this a solid one piece out of dom as well as the other piping for it. the over all design will still be the same as miata cage. Just not a full cage. Just the main hoop and down tubes. with some triangulations
that Fail bar is awesome!!! Seriously listen to everyone.... there telling you what is wrong with it, if you don't want to listen why start the thread????? trust me....... redo it....
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09-22-2009, 02:19 AM
#65
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2. You roll, you slouch naturally, your shitty rollbar collapses and smacks you in the head/strangles you/breaks your neck/back/skull/combination of these. You die. Quite possible.
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09-22-2009, 07:19 AM
#68
I will tell you I am here today because of a helmet.
I used to ride sportbikes daily, and went down pretty hard once due to a nice 6" deep exposed rebar pothole some jackass construction crew left in the middle of a turn.
I was wearing a $300 helmet, and was glad I was.
Goes back to what Sam said on top of this page...what's your head worth to ya.
You can try and reinvent the wheel with a fraction of the knowledge, none of the development or manufacturing equipment...or you can trust one of the several quality companies that strive to make their equipment to specific standards.
Your call with you....just don't come on this forum and try and act like it's a good idea for others to do as well...misinformation will not be tolerated here.
I used to ride sportbikes daily, and went down pretty hard once due to a nice 6" deep exposed rebar pothole some jackass construction crew left in the middle of a turn.
I was wearing a $300 helmet, and was glad I was.
Goes back to what Sam said on top of this page...what's your head worth to ya.
You can try and reinvent the wheel with a fraction of the knowledge, none of the development or manufacturing equipment...or you can trust one of the several quality companies that strive to make their equipment to specific standards.
Your call with you....just don't come on this forum and try and act like it's a good idea for others to do as well...misinformation will not be tolerated here.
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09-22-2009, 09:11 AM
#69
My donor Miata is a rolled 96 M-edition. The guy rolled it doing like 50 and rolled it twice with no roll bar. LET ME BE CLEAR!!! I do believe you should have a roll bar! But I have to say i was impressed to see how little the windshield defelected. It was only squished down 3-4 inches. I for sure thought it would collapse completely. The cars is not without some safety design features, but it is still a little convertable.
As sacington mentioned and I think I did before as well. Doing a cheapy bar like this would make me more concerned with the bar hurting you due to failing in a way that it was not intended to. Go look how close that bar sits to your head. Its awefully close and trust me it would hurt to make contact with it in a wreck. Who cares if it keeps you from getting crushed but it cracks your scull in the process.
Look, I realize that if you want to do this you are going to. I was young, dumb and broke as hell too and did some things that I am not to proud of. Do your homework and improve on everything as much as you can. Just remember that when the **** hits the fan, do you want to trust that bar that you saved $200 on by making it yourself?
As sacington mentioned and I think I did before as well. Doing a cheapy bar like this would make me more concerned with the bar hurting you due to failing in a way that it was not intended to. Go look how close that bar sits to your head. Its awefully close and trust me it would hurt to make contact with it in a wreck. Who cares if it keeps you from getting crushed but it cracks your scull in the process.
Look, I realize that if you want to do this you are going to. I was young, dumb and broke as hell too and did some things that I am not to proud of. Do your homework and improve on everything as much as you can. Just remember that when the **** hits the fan, do you want to trust that bar that you saved $200 on by making it yourself?
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09-22-2009, 11:03 AM
#72
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Ok so I have not read the whole thread but seriously DONT use that, you are better off not having it in your car. Go to a metal fab shop and have them bend you up a main hoop using DOM 1.5" .095 wall mild steel tubing or if your cheap go with HERW .120 wall. It will be so much safer and cant cost you more than $100. last I bought HERW tubing was only $60 for 20' seriously, If you can weld just have the hoop bent and buy some extra tube to do the rest and I will be correct and safer no mater where you use the car! I dont care if its sitting in a parking lot, DONT use that.
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09-22-2009, 12:03 PM
#74
******* idiots from illinois. Its a bad idea, get over it. Move on and do a single hoop
And you used a pipe bender instead of a tube bender (at least from what was shown in the pic) you have basicallycrushed the corners which is awesome the structural rigidity of the tube.
And you used a pipe bender instead of a tube bender (at least from what was shown in the pic) you have basicallycrushed the corners which is awesome the structural rigidity of the tube.
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09-22-2009, 01:04 PM
#77
Like I said a while back there....I'm really glad you're listening.
Sorry we crapped all over this thread, but we had to.
Now that you're doing it the "right way" feel free to start a "how to" thread for others that are motivated and have the skills.
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09-22-2009, 01:08 PM
#78
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yeh simple advice would have been good. No need to **** over any ones thread. Not crying about anything. Seem to see it A LOT here at mt.net Yeh i will be going to a couple shops to source out some DOM piping. and just use the bar i have now as a guide so i can have the shop make the bends. So i guess its just a mock up
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09-22-2009, 02:14 PM
#80
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DOM and a single main hoop. good. if you want us to stop bitching, post something like this:
"I grabbed the SCCA / NHRA / IRL / WHATEVER safety guidebook for rollbar construction and will be using it as a template for my rollbar build. that way I can do it for much cheaper but still be safe in a wreck. yay me!"
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