[Vicegrip]

Originally Posted by Noah

lolz, kurt, i was just joking around...a GT3 is already insanely stiff. i guess i sort of inside-baseballed myself. there are all these threads on pelican with people going on and on about chassis strength and stiffening and x-braces and roll bars, and i know it's completely meaningless on a modern 911. it was, um, funny (at the time, to me).

Yes you hit a little inside and I missed it. I too get kinda ticked when I see someone getting all fuzzy about something that does nothing but look CNC cut. Late model tower braces come to mind for some reason. There was a thread some years ago on PP that got so stupid. It was sort of the last straw and I checked off the Mother Board for a year or so. It is a great site and full of smart experienced folks (-1 with the passing of early S man ) but there are so many that are waiting to pounce on every little thing and then circle fight amongst themselves. Even the modern street 911 can be stiffened up. Look at the chassis flex numbers. You have to address the door holes.

My late night rant was more on 2 things. Adding bolt in stiffness and the misconceptions and people selling on perceptions over good design. This bar is not in anyway "bad". I just think it could have been better and lighter but I am truly just another guy on the internet. It is like all bolt in bars, and to a lesser extent ALL bars and cages, a compromise. My guess is that the main hoop plane was not open to being in plane braced so they added metal in the back bracing. his makes for a less strong device that has more metal in it. Less strong, more weight. The nightmare of the automotive anorexic. I bet you could have added in a drivers top to pass bottom bar and had the harness bar bulge back on the drivers side to accommodate the seat some. Brace the main hoop and remove the rear x and the unneeded lower cross bar.

Ryan flies around the track and generates far greater energy potential than most of us mere mortals. He and the other real fast ones need good safety equipment.We all do but we are not dealing with linear increases we are dealing with logarithmic increases in energy. Even good drivers end up in bad situations. An impact at 150 or more is a LOT more than one at 100.

Check the mad photochop skilz. Add a diagonal in the main hoop. Add a harness bar that intersects the diagonal and stays in the plane of the main hoop or dips back for the drivers seat only if need be for clearance. Drop the stuff in the back.

[Rob in VA]

the stuff in the back looks cool. 'nough said.

[michael lang]

I completely understood what you talking about Kurt. You know Kurt, you'd probably do okay doing stuff like that for a living!