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Proper sub belt mounting?

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Old May 18, 2009, 01:23 PM
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Proper sub belt mounting?

My Sparco seats arrived and I've got'em ready to install this weekend. From everything I've read (the correct instructions), it looks like the only solution to properly mount my dual (6-point) sub belts is to drill the floor and use a reinforcement plate. If anyone has a solution that keeps the angle to within 20 degrees and avoids drilling, speak now please. I'd like to keep my car such where if I had to put the stock seats back in, pull the harness, pull the cage, etc., I could. I'm not planning on visiting the dealer, but things happen.
Old May 18, 2009, 01:54 PM
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Originally Posted by 05 MR
My Sparco seats arrived and I've got'em ready to install this weekend. From everything I've read (the correct instructions), it looks like the only solution to properly mount my dual (6-point) sub belts is to drill the floor and use a reinforcement plate. If anyone has a solution that keeps the angle to within 20 degrees and avoids drilling, speak now please. I'd like to keep my car such where if I had to put the stock seats back in, pull the harness, pull the cage, etc., I could. I'm not planning on visiting the dealer, but things happen.
So you've got a cage and you're still concerned with what a dealer thinks? Didn't ya have to drill just a wee bit for the cage?

I drilled and reinforced. Done. I knew that was the official point of no return. I might have been able to sneak past the darkened calipers back then - which to me is the easy sign of track use.
Old May 18, 2009, 03:06 PM
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So you've got a cage and you're still concerned with what a dealer thinks?
Until my warranty is up, Yes. In another 6 months, no. Pretty sure I could hide it if I had to.

I drilled and reinforced
With something like this?
http://www.sparcousa.com/pharness_comp.asp?id=479
If yes, 4 bolts in the 4 corners (not too close to the edges)? Did you then use i bolts to connect the sub belts?
Old May 19, 2009, 07:36 AM
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Originally Posted by boomn29
I drilled and reinforced. Done.
I used everything I got from 992gnt actually. The plates look like a D ring and have a backing plate for underneath the car as well. You need to be careful when you drill as there are some lines you have to work between.

I've got some pics at home I'll try to post up tonight.
Old May 19, 2009, 08:41 AM
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That would certainly help. Thanks.
Old May 19, 2009, 12:36 PM
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Or you can weld mounting plates in.
Old May 19, 2009, 07:34 PM
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Originally Posted by boomn29
I used everything I got from 992gnt actually. The plates look like a D ring and have a backing plate for underneath the car as well. You need to be careful when you drill as there are some lines you have to work between.

I've got some pics at home I'll try to post up tonight.




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