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BMW 3-Series (E90 E92) Forum
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2013 Track Dates (Quebec, Ontario and U.S. North East)
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01-13-2013, 10:37 AM | #67 | |
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read this on another forum and although some of the medical jargon is a bit over-emphasized for effect...the point is made.
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- cannot get a harness bar as it will not provide sufficient structural support - cannot get seat without 4-6 point, but then need a cage, and need a HANS so as to prevent cervical spine fractures - if i get seat and figure out a way to pass OEM belt though the side piece, i most likely need to reposition the belt receptacle slightly to make sure it stay snug. also, i am disabling drive side airbag - if i decide to get a sport seat just for a bit more support, short of getting the BMW performance recaros which have integrated airbags, but which are like 2500 each, getting a regular sport seat will still cost over 1000 and will necessitate disabling driver side airbag i hate this shit. thank you Joel for preventing me from making a potentially stupid mistake. i am still contemplating it if I can get the belt to work...but if not, I'm out. Even if I can, it's still iffy. |
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01-13-2013, 11:52 AM | #68 | |
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here is a good example of the issue with the belt I'm out...fuck. oh well. camber |
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01-13-2013, 02:19 PM | #70 |
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That post is actually excellent, thanks for sharing George. No need for seat!
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01-13-2013, 02:27 PM | #71 | |
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Quote:
The camber mod is always good.
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01-13-2013, 04:54 PM | #72 |
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porsche does this smart...they have a maleable seat belt receptacle can can pass through the hole and maintain OEM restraint with no issues
BMW has a stiff belt receptable with a steel wire inside (for pre-tensioning) and cannot really be routed through |
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01-13-2013, 04:57 PM | #73 |
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not worth it for now. i would like to retain rear seat functionality...at least 1. a rollcage would add so much weight and at the end of the day probably worsen things without a full strip to equalize the weight gain. So this will not happen unless I make this into a track car...which will happen at some point
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01-13-2013, 08:10 PM | #74 |
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01-13-2013, 08:23 PM | #75 | |
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Quote:
- installed recaro fixed back seat to stop me from sliding around. - had to disable driver seat airbag. - decided on installing one seat only so i can keep passenger side seat airbag fully functional, that way i dont put my passenger in as much risk. - retained the use of 3 point belt. - harnesses would require a harness bar but i dont think harness bars are safe without a roll hoop, which means a full roll bar would be needed... imo thats just too heavy a modification for me to justify financially. - modified the seat belt receptacle to ensure that the standard 3 point belt will hold me in at the hips. i did this by channeling the seat belt receptacle through the belt hole on the right side of the seat. so when i put my seat belt on, the lower belt still goes across my hips. not saying that what i did is the best in terms of safety but i weighed the pros and cons of what i did and was prepared to take the risks. the best and safest way to drive on a track would be to have a full fire proof race suit, helmet with hans, built-in fire extinguisher system, full weld-in roll cage with side protection bars, etc..... but go to any event and see how many people actually have this set up (usually less than 50%). it basically makes their car un-driveable on the street. end of your day, its your car and your life. so you'll have to weigh in the pros and cons on your own. but dont let forum talk decide what you should be doing.... link to an e46 m3 that also had his seatbelt receptacle shortened. http://m3forum.net/m3forum/showthrea...=315833&page=7
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01-14-2013, 12:42 AM | #76 |
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check out this vid.... makes me feel like i dont know anything bout driving.
skip to 5.10 to see some action. !
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01-14-2013, 08:48 AM | #77 | |
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2- did u need to shorten the receptacle? how did you rout it it's so stiff 3- did any clubs not let you run |
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01-14-2013, 02:50 PM | #78 |
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And Chris. Do u have pics?
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01-15-2013, 07:39 AM | #79 |
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Thought I would chime in on the seat-bar discussion to help clear out whats good and whats bad.
1- Running a race seat with a 3 point belt is a big NO NO as the belt has to be routed through the seat hole and have the correct geometry to rest in the iliac crest of the pelvis to prevent the submarine effect and-or abdomen injury. Even worst, I heve seen guys run the 3 point belt on top of the raceseat.... This is excessively dangerous and will not keep you into the seat in a crash. 2- A race seat must run the proper harness to ensure a good fit and the most secure in case of impact. In order to use a race seat and harness 99% of clubs mandate to have a rollbar (not harnessbar) in case of rollover. 3- To have better support while keeping the functionality and safety of the OEM setup is installing DOT sport seats;recaro, cobra, etc... that will work properly with the 3 point harness. Don't forget that the OEM system is a integrate system with tensioner built into it to tighten the belt in case of impact to minimize submarining. 4- My 2 cents: If you do it...Do it right!! There is no substitute for safety... All looks good until someone get hurt and we are not playing bowling here!!!!! Can wait to get back on the track!!!! Now back in the shop to work on Jgalaxy's monster |
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01-15-2013, 10:29 AM | #80 |
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Hey Seb!
Thanks for chiming in! Another way to look at it coldly, is that it may not be a bad idea to have the whole chabang: the roll cage, harness, hans device, etc. if one is mostly driving 10/10.
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01-15-2013, 11:47 AM | #81 | |
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01-15-2013, 04:19 PM | #82 | |
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1 and 2.) i cut the oem receptacle so that it would sit lower. i did this on a used unit that i bought online so i dont ruin my oem one. it does intrude on your side slightly but never made me uncomfortable. 3.) no clubs have ever objected. most clubs have rules that if you want to run harnesses, you need a harness bar or roll bar but no rules stating what kind of seat you should have. all depends on what youre comfortable with doing. i have seen tons of people using harnesses with OEM seats and no roll bar or harness bars like the schroth quick fit systems....this is another way to get your more anchored down in your seat...but if you go by what all the other folks are saying, this would probably be a no-go as well. just gotta weight your own pros and cons.
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01-15-2013, 08:51 PM | #83 |
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It's just a little something I'm working on.
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01-15-2013, 10:47 PM | #85 |
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01-15-2013, 11:25 PM | #86 |
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Last edited by jgalaxy; 01-15-2013 at 11:39 PM.. |
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01-15-2013, 11:27 PM | #87 |
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ohhhhhhhhhhhhhh shit son
and now i understand your teaser! |
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