Quote:
Originally Posted by Zeke
I'll bet your Boxster offers more rollover protection than your old 911. The question is, do cab owners drive with the top up or down? If down I think arm restraints should be required.
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I am sure my Boxster offers far better rollover protection than my '72 911. That is even with an Autopower roll bar mounted in the 911. Yes, the roof and roll bar work together in cars like that, but I bet the Boxster still offers more protection.
Cabs are required to run with the top up at every club's HPDE events in my area.
Quote:
Originally Posted by Zeke
More: I wonder on a Boxster what kind of aftermarket roll bar would pass muster. Not much room there to bolt one on and practically no way to brace it unless the bracing went forward into the door openings.
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The ones I have seen, from companies like Brey-Krause, replace the stock hoops and mount in the same location. The only difference is that they are taller. Some advertise that they will fit under the stock soft top, which makes me wonder about those that don't. Now we have met the aftermarket roll bar rule, but can't put the top up, so are not allowed on that point.
I really don't think the ones who changed this rule thought it out all that well.
Quote:
Originally Posted by Zeke
I had a roll hoop with rearward bracing on my 71 S and the way it mounted was somewhat less than comforting. I think it was there to provide an attachment for the 5 point harness as much as anything. It sure was not an integral part of the car. 16 3/8ths bolts through maybe 5 x 5" plates bolted to the floor and rear fender wells.
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I'm far more comfortable with that design than I am with the ones that have the diagonal braces mounted to the rear seat bottom pivot bolts, or to the seatbelt bolt holes. Those strike me as purely decorative, a fancier harness bar effectively.