[DeTomaso] seatbelt bar

[adin at frontier.net]

Don't forget, during any unplanned physical tricks the G forces may  
reach unthinkable ranges.  My fat ass X  multi g loads . . . .

Of course, if it comes to that, there may be other issues.  You DO  
wear you HANS, right?




Quoting MikeLDrew at aol.com:

>
> In a message dated 12/30/07 19 58 8, dferrato at aol.com writes:
>
>
>> Do I remember some problem with mounting belts/harnesses to the
>> vendor supplied seatbelt bars with regard to their strength or
>> positioning?
>>
> The beauty of the vendor-sourced bars is their simplicity.   They go into the
> car in minutes with no modifications to the car required.   Some have
> speculated as to how they would react in a crash, i.e. would they   
> distort since they
> are only supported on the ends?  If the engine is out of the car, it would
> probably be a good idea to add a third mounting bolt directly in the  
>  center of
> the bar.   But when you think about it, the only way the bar could distort
> forward to any degree would be if the ends of the bar were   
> compressed.   It would
> take a LOT of forward force to pinch the sides of the car together enough to
> let the bar and harnesses move forward to any degree.
>
> I think we can all agree that four-point harnesses are infinitely better than
> the stock belts (which, let's remember, are getting a bit long in the tooth),
> and five-point harnesses are better still.
>
> If you're thinking of upgrading your belts, I would install the bar without
> hesitation.
>
> Dennis Quella sells a weld-in kit consisting of a piece of U-channel with
> provisions for an eyebolt.   This thing is flawed for a number of reasons.
> First of all, it places the shoulder harness mount quite a bit too   
> low.   It is
> imperative that the shoulder harnesses be mounted close to shoulder   
> level, and
> perpendicular to the expected force.   Dennis kit mounts them a few inches
> below the shoulder bar.   (Anything lower than shoulder height reduces their
> effectiveness; mounting them on the floor makes them perfectly useless!)
>
> This kit also requires you to both weld on the car, and cut holes in your
> back panel to feed the eyebolts through.   And finally, the belt   
> hardware rattles
> something awful on the eyebolts, which is annoying.
>
> I have five-point harnesses from Hall Pantera in my car, consisting of
> three-inch lap belts, two-inch shoulder harnesses and a two-inch   
> crotch strap.
> Although the strap has a secondary benefit of preventing you from   
> 'submarining'
> under the dash (out from under the belts) in a frontal collision, the real
> intent is to keep the lap belts from 'riding up', which they will   
> tend to do with
> a seating position as reclined as ours, when the shoulder harnesses are
> tightened properly.   Basically, the shoulder harnesses tug up, and   
> the crotch belt
> tugs down, keeping the lap belt centered on the hips properly.
>
> Besides being important in a crash, such belts do a great job of keeping the
> driver planted during aggressive driving, enabling him to have a much better
> seat-of-the-pants feel for what the car is doing.
>
> Mike
>
> Mike
>
>
> **************
> Start the year off right.  Easy ways to stay in shape.
>
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