SoundGuyDave
This Space For Rent
- Joined
- Apr 9, 2007
- Posts
- 1,978
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Belt stretch, and angular pull. Most harness manufacturers recommend crossing the belts if you have over "X" length (IIRC 15", but look it up for safety's sake!) past your shoulders. Think of it this way: A 5* deflection with a run of 10" is basically nothing, but a 5* deflection with a 60" run (back over the harness bar then down) could be enough deflection to have the belts slip right off your shoulders... That WOULD be a Bad Thing. Not saying it WILL happen, but it could. If there's only one mount point, then it's a single-failure point, and I would think hard about it. That's effectively turning the shoulder harness into a "Y" harness, which is illegal in every race tech book that I've seen. If, on the other hand, the mount points are offset to one side behind the seat, then you have an angular pull, and that's just as bad. Best would be for them to be wide, like the stock locations for the rear belts, and cross them going over the bar. That would leave just the stretch issue, assuming your wider mounts are roughly equidistant from the front seat centerline, which they may or may not be.