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Joined: 26 Sep 2018
Posts: 79

PostPosted: Wed Nov 14, 2018 8:48 pm    Post subject: 997.1 GT3 CS OEM Harness Install Reply with quote

Hi Guys.

Apologies if this has been covered lots previously, I did try the search but couldn't find anything.

I have a 997.1 GT3 CS which I'm soon to be installing OEM Schroth harnesses in to.

I know that the shoulder belts go on the roll bar of the cage and am fine with that, but am unsure where the crotch strap and the lap belts x 2 bolt to.

I've seen some conflicting stuff online, and wondered if anyone has experience of this themselves and could give me some information on the proper, OEM locations. I *think* the lap belts are bolted into a threaded insert I've found on the transmission tunnel and on the sill, but am at a loss with the crotch strap. Annoyingly, I did have the seats out the other day (carbon buckets), but didn't think to look for threaded holes in the floorpan at the time.

Thanks in advance.

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Long Beach

Joined: 01 Oct 2010
Posts: 6403

PostPosted: Sat Nov 17, 2018 10:55 am    Post subject: Reply with quote

I can't remember now how I sorted mine when I fitted my aftermarket cage, but I remember chatting to Cunno about it at the time. Maybe try dropping him a PM if you don't get any luck on this thread? Good luck Thumb
2007 997.1 GT3
2017 F87 M2
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Joined: 13 Dec 2008
Posts: 2366
Location: Nottinghamshire

PostPosted: Sat Nov 17, 2018 11:22 am    Post subject: Reply with quote

To be honest I’m not sure as my car is a modded comfort. It will be one of 2 ways either bolted to floor or the seat frame has a harness bar built in, not sure what was standard. Freddie44 or Senoj would know.
Porsche is for driving not for washing.
Present Car: 2006 3.6 Porsche GT3 997(White)
Ex: 2006 3.4 Porsche Cayman S (Silver)
Ex: 2001 2.7 Porsche Boxster (Seal Grey)
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Joined: 18 Jul 2010
Posts: 5517
Location: London

PostPosted: Sat Nov 17, 2018 1:06 pm    Post subject: Reply with quote

Some info here maybe useful Dont know

991.1 Carrera GTS
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Joined: 23 Jan 2006
Posts: 5210
Location: Oxfordshire

PostPosted: Sat Nov 17, 2018 11:55 pm    Post subject: Reply with quote

Lap belts go in as you describe. Just make eye to have the correct threaded bolts as they are weird spec, not metric iirc.

Crotch belts attach to threaded inserts in the floor under the front of the seat, just slide the seat all the way back and you’ll see them. Again make sure to get the right washers and spacers on there and also follow the schroth instructions for wrapping the belt webbing to the mount hardware. Bit fiddly to get the lengths all good but once done it’s done.
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Joined: 26 Sep 2018
Posts: 79

PostPosted: Mon Nov 19, 2018 5:50 pm    Post subject: Reply with quote

Thanks guys, I got there in the end.

The crotch strap threads appeared too far forward to my mind initially, until I attached the harness and they then looked fine.

Drivers & passenger harness both in now, along with the ludicrous fire extinguisher in the passenger footwell. No point having a CS and not having all the daft stuff fitted after all!

I've ordered a couple of those male seatbelt ends to plug into the OEM belt socket to stop the 60 seconds of annoying noise and red light on the dash. Ebay's finest, £2.50 delivered!
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