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Old 07-10-2009, 01:03 AM   #1
HODGTR
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Default competition belts

Does anyone have a suggestion for the installation of
a five point harness? I know there are belts available
for BMWs that quickly attach to the rear seat belt fastener;
is such a system available for the GTR? I'd rather avoid
putting in a harness bar. Thanks.
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Old 07-12-2009, 01:27 PM   #2
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Look on the "how to" section. I believe that there is a discussion on fitting the Mits bar for the upper attach points of a 4-point belt.
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Old 07-12-2009, 02:10 PM   #3
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Haven't heard of this at all actually. I think at present you're stuck with a bar on the rear shelf. Good luck with finding a solution, if you do come across one post it up here.
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Old 07-12-2009, 05:59 PM   #4
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Thanks for the reference. What's discussed, though, is the placement of
a harness bar, which I'm trying to avoid. I'd like to use a Schroth style system, where the shoulder harness attaches to the rear seat belt mechanism. I'll call Schroth directly and see if they have a GTR application; it works well for M3s. I recognize that a bar is probably a
better anchor point, but my application is simply for track days, rather
than competition.
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Old 07-12-2009, 06:02 PM   #5
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You're probably right. I put a bar in my 350Z and it worked well, but it's a
more involved installation in the GTR and looks to really negate any use of
the back seats, such as they are! If Schroth has a simple solution via a
shoulder harness that connects to the rear seat belt couplings, I'll post that
option. Thanks.
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Old 07-13-2009, 11:29 AM   #6
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Yes, I'm with you. I track several times a year and would like a 4-point harness, but I haven't stepped up to the bar, yet. Really looking forward to you finding a way to do this "better than shoulder belt, but not full-on harness" Please keep us informed.
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Old 07-13-2009, 06:30 PM   #7
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Quote:
Originally Posted by ted99 View Post
Yes, I'm with you. I track several times a year and would like a 4-point harness, but I haven't stepped up to the bar, yet. Really looking forward to you finding a way to do this "better than shoulder belt, but not full-on harness" Please keep us informed.
I spoke with a representative from Schroth and they have no plans, at present, for a GTR application. They're the only company I'm aware of that does the rear seatbelt coupling.
Apparently they have to do pull out testing, etc., before they
can put such a belt on the market. They're aware of the GTR market potential and are trying to gauge the level of interest before going ahead with the project. Maybe if we all barrage them with requests . . .
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Old 07-13-2009, 07:32 PM   #8
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I have my 4 point harness attach to the rear seat and no problem. There is a how to on vivid racing.
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Old 07-13-2009, 07:57 PM   #9
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Quote:
Originally Posted by gashero View Post
I have my 4 point harness attach to the rear seat and no problem. There is a how to on vivid racing.
Thanks. I looked at their website and couldn't find anything
specific about mounting the belts to the rear seat. What brand of belt are you using? If you have a moment and can
send the link for the "how to" I'd appreciate it.
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Old 07-14-2009, 12:09 PM   #10
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I called Schroth, as well, to put in a request. Got some interesting info. They said "bring in your car (they are in Mass) and we'll look to see if we can adapt something". But, their concern is about compression load on the seat in a crash. The seat has to be able to withstand the compression load resulting from upper attach points below the top of the seat belt openings. They said it would require removal of the seat and testing to the point of destruction. The small numbers of GT-R's says they would find this to be cost prohibitive for them to undertake on their own.
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Old 07-14-2009, 10:58 PM   #11
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Hodgtr check pm
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Old 07-15-2009, 01:17 AM   #12
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Quote:
Originally Posted by gashero View Post
Hodgtr check pm

Sorry, not understanding what you're saying with that one.
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Old 07-16-2009, 01:26 AM   #13
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Quote:
Originally Posted by ted99 View Post
I called Schroth, as well, to put in a request. Got some interesting info. They said "bring in your car (they are in Mass) and we'll look to see if we can adapt something". But, their concern is about compression load on the seat in a crash. The seat has to be able to withstand the compression load resulting from upper attach points below the top of the seat belt openings. They said it would require removal of the seat and testing to the point of destruction. The small numbers of GT-R's says they would find this to be cost prohibitive for them to undertake on their own.
Good of them to volunteer destroying your seat for testing!
It doesn't sound like they're going to have a quick fix any time soon. I sure prefer doing track days with a five point
harness, but for this car, the standard belts may have to suffice -- at least for now . . .
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