VitaminZ Posted September 14, 2016 Share Posted September 14, 2016 Anyone know the purpose of that horizontal flat bar which goes across from the diagonal bar to the upright ? Harness mount ? Quote Link to comment Share on other sites More sharing options...
ritrebor Posted September 14, 2016 Share Posted September 14, 2016 Don"t believe that is the harness mount. More of a seat support. Mine has the horizontal bar the same size tubing as the rest of the roll bar. ritrebor Quote Link to comment Share on other sites More sharing options...
VitaminZ Posted September 14, 2016 Author Share Posted September 14, 2016 Hmm , Not saying your wrong but when the roll bar is mounted in the car that flat bar you're saying is for seat support is pretty far away from the seat to support it . Or am I missing something ? Don"t believe that is the harness mount. More of a seat support. Mine has the horizontal bar the same size tubing as the rest of the roll bar. ritrebor Quote Link to comment Share on other sites More sharing options...
VitaminZ Posted September 14, 2016 Author Share Posted September 14, 2016 I'm gonna make another guess and say it's a head restraint . Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted September 14, 2016 Share Posted September 14, 2016 (edited) There are 2 reasons for toolbars, and I accept both as legit: 1) for safety, 2) to look cool. I have had roll are for both reasons, so I'm cool with either. If for safety, they should conform to the rule book you are racing under. If for looks, the builder can do pretty much as he pleases. On my current rollbar, the horizontal bar does two things: seat support and harness attachment, so it is often referred to as a "harness bar." I have a bolt on piece that extends from the harness bar to the back of my seat; this really makes my seatback solid. My rollbar passes tech for NHRA and ECTA. I also built it with features that should make it pass SCCA tech, although I'm too slow at autocross for anybody to really care. That piece on your rollbar is too light to conform to any rule book I'm familiar with. It looks to light to be in compliance as a harness bar, seat brace or head restraint. I think it is just the result of a creative imagination. And I'm cool with that. Edited September 14, 2016 by RebekahsZ Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted September 14, 2016 Share Posted September 14, 2016 An interesting trend (which makes no sense to me) we are seeing at Z-oriented track days. If the car has no rollbar, the inspectors are allowing stock seatbelts of any age. But, if a rollbar has been installed, they are enforcing racing seatbelt expiration dates and installation standards. Very strange double standard, but be aware. Your rollbar could actually keep you from participating in some track days (???). Crazy stuff. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted September 14, 2016 Share Posted September 14, 2016 Used to have one of these Autopower roll bars. I thought it was supposed to be a harness bar, and I thought it was too small to use as a harness bar, so I added another tube between the backstays at about the same height to attach the harnesses to. If you can't weld, you can pretty easily buy a piece of DOM tubing, use a coping calculator like this one: http://metalgeek.com/static/cope.pcgi Easy to grind the tube with that calculator then you can have a muffler shop weld it in for you. Quote Link to comment Share on other sites More sharing options...
Rob L Posted September 14, 2016 Share Posted September 14, 2016 Hans device attachment bar Quote Link to comment Share on other sites More sharing options...
JMortensen Posted September 14, 2016 Share Posted September 14, 2016 They've been making them that way since the 90s, maybe 80s. Long before HANS existed. Quote Link to comment Share on other sites More sharing options...
Rob L Posted September 14, 2016 Share Posted September 14, 2016 Well they must have been psychic, because its perfect for HANS NOW isnt it. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted September 14, 2016 Share Posted September 14, 2016 How does this have anything to do with a HANS device? Perfect for... ??? Are you aware of how a HANS device works? Quote Link to comment Share on other sites More sharing options...
74_5.0L_Z Posted September 14, 2016 Share Posted September 14, 2016 I think that piece of metal might be sufficiently strong for hanging up your laundry after it comes out of the washing machine. Other than that, I see no useful purpose. Quote Link to comment Share on other sites More sharing options...
Rob L Posted September 14, 2016 Share Posted September 14, 2016 lol i thought the HANS hooked up behind you ...to an attachment .... at least thats how it was explained to me when i bought my roll bar...scary to think people selling roll bars dont even know . Hey you can put a Fancy HANS sticker on that bar, thats about it . Quote Link to comment Share on other sites More sharing options...
calZ Posted September 14, 2016 Share Posted September 14, 2016 An interesting trend (which makes no sense to me) we are seeing at Z-oriented track days. If the car has no rollbar, the inspectors are allowing stock seatbelts of any age. But, if a rollbar has been installed, they are enforcing racing seatbelt expiration dates and installation standards. Very strange double standard, but be aware. Your rollbar could actually keep you from participating in some track days (???). Crazy stuff. Similarly, there are some organizations that, if a car has a passenger seat, require the passenger harness to be the exact same as the driver harness. So if you have a $500 Schroth on the driver side, a $70 G-Force belt isn't sufficient for the passenger. If you go with the $70 belt on both sides, though, you're just peachy. It makes no sense at all. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted September 14, 2016 Share Posted September 14, 2016 I thought the requirement was for "like" equipment. 5 points on both sides, for example. Or race seats with back supports on both sides, etc. It makes sense in that some people will have a full containment race seat, and use a stock seat with a stock belt on the pass side. An instructor is supposed to get into the car and ride along at much higher risk, because the participant paid $200 to do an HPDE with instruction. It's about safety for driving instructors. Quote Link to comment Share on other sites More sharing options...
VitaminZ Posted September 14, 2016 Author Share Posted September 14, 2016 Thanks for the input guys , I just wondered why autopower have put that bar there . I saw on a website where they sold the roll bar the description says it's a head restraint . Quote Link to comment Share on other sites More sharing options...
calZ Posted September 14, 2016 Share Posted September 14, 2016 I thought the requirement was for "like" equipment. 5 points on both sides, for example. Or race seats with back supports on both sides, etc. It makes sense in that some people will have a full containment race seat, and use a stock seat with a stock belt on the pass side. An instructor is supposed to get into the car and ride along at much higher risk, because the participant paid $200 to do an HPDE with instruction. It's about safety for driving instructors. That's very possible, but it wasn't how it was applied in this instance. It could have just been a tech inspector being extra picky or misinterpreting the requirement. I agree that it makes sense to keep the instructor or passenger just as protected as the driver. Quote Link to comment Share on other sites More sharing options...
VitaminZ Posted September 14, 2016 Author Share Posted September 14, 2016 Used to have one of these Autopower roll bars. I thought it was supposed to be a harness bar, and I thought it was too small to use as a harness bar, so I added another tube between the backstays at about the same height to attach the harnesses to. If you can't weld, you can pretty easily buy a piece of DOM tubing, use a coping calculator like this one: http://metalgeek.com/static/cope.pcgi Easy to grind the tube with that calculator then you can have a muffler shop weld it in for you. Jon , I'm guessing when you thought it was supposed to be a harness bar you used it as a harness bar for sometime ? I will have another tube welded for the harness Quote Link to comment Share on other sites More sharing options...
gnosez Posted September 15, 2016 Share Posted September 15, 2016 Harness bar, period, end of sentence. A left-over from an earlier era. They were sold in two versions, one for street and one for SCCA track use. The street version was just two hoops while the track version had an angled brace and the aforementioned harness bar, which was in reality a loop that could accommodate the seat being installed back into the bend, flat and hoop so one could attach their harness. Neither was a cage but rather just a roll bar, albeit one was stronger than the other. It's threads like this that I miss John even more. Quote Link to comment Share on other sites More sharing options...
VitaminZ Posted September 15, 2016 Author Share Posted September 15, 2016 (edited) Harness bar, period, end of sentence. A left-over from an earlier era. They were sold in two versions, one for street and one for SCCA track use. The street version was just two hoops while the track version had an angled brace and the aforementioned harness bar, which was in reality a loop that could accommodate the seat being installed back into the bend, flat and hoop so one could attach their harness. Neither was a cage but rather just a roll bar, albeit one was stronger than the other. It's threads like this that I miss John even more. Thanks for your input I appreciate it . Edited September 15, 2016 by VitaminZ Quote Link to comment Share on other sites More sharing options...
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