Anyone out there with a GC8 with a harness installed that is not attached to a rollcage...

What mounting points/method have you used for the shoulder straps?
This is the particular harness I have got coming...

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+1 i got the same harness and am also looking for this info

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I've just replaced the bolts for the seatbelt for the rear drivers side passenger with eyelet bolts. Not ideal as it is better to have the belts almost parallel to the ground instead of going down at and angle. This is so the belts don't compresss you down in a head on.
Better than nothing though..

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My car came with a harness, I might take a look to see where he had it bolted to.

Can you bolt then up to where the rear parcel shelve has the connector
points for baby seats or will this not be a secure enough point?

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221.7KW-ATW 498.5NM MMS ROLLER DYNO & BUILT BY STi NINJAS, BUILD #318/600

EBISU SUBARU, SHIBUYA-KU TOKYO

I thought this too when I eventually get a harness but have been told that some arnt long enough to reach that point...
Could anyone clarify?

Here is an installation guide for a similar harness that you can use for ideas:
http://www.soloracerblog.com/files/W...structions.pdf

Hope this helps.

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221.7KW-ATW 498.5NM MMS ROLLER DYNO & BUILT BY STi NINJAS, BUILD #318/600

EBISU SUBARU, SHIBUYA-KU TOKYO

DO NOT use baby seat mounts...they are only designed for the weight of a baby, not adult...and any CAMS scrutineer will not pass them.
Contact MMS...they can weld secure threaded cups for eyelet bolts behind your rear seat...the only down side is that you need to remove the rear seat to use them, but the eyelets stay screwed in all the time and removing the rear seat is a 5 min job.
I've have this setup in my MY06 and it works very well (also have had it in all my previous ones too)

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^^^^ Steve is onto it. Not a place to take short cuts.

Question.. Is the harness you are buying bolt in or clip in? Harnesses that clip in to eyelets are far more user friendly than bolt in types if you want to take it out easily when not doing track related stuff.

Also you have a 5 point harness pictured. Are you going to install the crotch strap? Does your seat have a hole in the base for the crotch strap? You will nede to do some specialist work to provide an anchor point for that strap.

The lap straps can normally be secured where your current seat belt is. The rear straps as a bare minimum should be bolted through a solid part of the cars structure and have a sandwich plate on the other side. (flat bit of metal with bolt welded to it) You can get these from race supply stores. Are manufactured to correct size. You want the rear straps to be as close to the horizontal plane as possible as opposed to running them down to the rear seat mount bolts. Max decline angle is 45 degrees for memory but check the CAMS manual. Declining angle straps will exert downward crushing forces on the spine in an impact.

Technically you shouldnt be using harnesses without some form of rollover protection as they prevent you from being able to slump to one side and avoid crushing injuries like a lap sash belt allows you to do...but thats a whole separate argument and I have certainly been guilty of running one without a minimum half cage...

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Umm most of what you say makes great sense, eg the angles, but slumping to one side in an accident? as they happen in the blink of an eye, and the forces involved in some of the crashes, I doubt that a person would have either the time, or strength, to adjust their position. The new top of the range cars have seat belt tensioners which holds the passenger in the seat, as a firm fitting harness should. (for my 2 cents)

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