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Old 10-16-2020, 05:07 PM   #1
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Harness bar or use factory roll bar for 6 point belts?

Today I bit the bullet and picked up a pair of Porsche GT3 "alien" seats to use for HPDE track days. I am going to install them tomorrow without any harnesses and use my factory seatbelts for 1 HPDE at the end of the month, but over the winter I will buy harnesses and a HANS device. The shop I use for safety equipment is recommending a custom harness bar they offer rather than attaching the shoulder harnesses to the horizontal section of the factory roll bar. I think all the street driven Boxsters I have seen at the track have the shoulder harnesses attached to the factory roll bar. I am between 6-2 and 6-3 on my best days. I think I understand that the harness bar would sit lower and therefore make the shoulder harnesses more secure. If you have 6 point harnesses in your street Boxster, are you using your factory roll bar or a harness bar for your shoulder harnesses?



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2003 S, 3.6 LN Nickies, ARP rod bolts, under-drive pulley, Fabspeed sport headers, Softronic tune, 987 airbox 987 motor mount, Function-First Sport insert & transmission mounts, Ben's short shifter, Nine8Six projector headlights & center caps, ROW M030, stainless flexible brake lines, B-K rollbar extension & fire extinguisher mount, hardtop
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Old 10-17-2020, 07:27 AM   #2
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I'm using the factory roll bar in mine.
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Old 10-17-2020, 08:51 AM   #3
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I am also, but do a search on the correct belt angles and check out the results with the stock bar. As i recall it you want about a 10 degree down angle from shoulders to bar
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Old 10-17-2020, 03:34 PM   #4
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Thanks, I think I'll end up with the harness bar. I'll probably be taking the bottom seat cushion out when I'm on the track for the extra headroom with my helmet on. I did get the seats installed today, but it took me almost the whole day-had to figure out the factory seat belt receptacle attachment, remove duct tape glue from the back of the seats where the receptacles were, and get the correct seat belt receptacle hardware on inboard sides of the seats.


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2003 S, 3.6 LN Nickies, ARP rod bolts, under-drive pulley, Fabspeed sport headers, Softronic tune, 987 airbox 987 motor mount, Function-First Sport insert & transmission mounts, Ben's short shifter, Nine8Six projector headlights & center caps, ROW M030, stainless flexible brake lines, B-K rollbar extension & fire extinguisher mount, hardtop
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