ohh please!!! what if the sky was to turn GREEN, and aliens landed in my back yard, and there was dogs falling from the sky, and the water started to rise, and my house fell down!!!!! please, regular seat belt have thier faults too! those harnesses have some bad things, as well as good just like regular seatbelts. If german TUV will alow them on the streets, then thay arent that bad for you, cause TUV wont allow much here in germany. just like the "racing seats, as long as they are adjustable, no problems. you should spend the money for the electric ones, that retract though, its alot more comfortable. dont listen to all the "couch racerz"here. noone here should probably lower thier cars, cause that causes premature tire wear, as well as earlier ball joint failure!! but most of us do it anyway!
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Originally posted by mikeedlerohh please!!! what if the sky was to turn GREEN, and aliens landed in my back yard, and there was dogs falling from the sky, and the water started to rise, and my house fell down!!!!! please, regular seat belt have thier faults too! those harnesses have some bad things, as well as good just like regular seatbelts. If german TUV will alow them on the streets, then thay arent that bad for you, cause TUV wont allow much here in germany. just like the "racing seats, as long as they are adjustable, no problems. you should spend the money for the electric ones, that retract though, its alot more comfortable. dont listen to all the "couch racerz"here. noone here should probably lower thier cars, cause that causes premature tire wear, as well as earlier ball joint failure!! but most of us do it anyway!
-Dannever enough money...
'95 240sx base - RB25DET in progress
'87 325ic - Project daily
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the problem is most people who are ignorant are also stubborn. good to hear you're accepting the concerns. i thought the same were a good idea, but after becoming educated, i quickly resold them. the only time i'd accept the risk would be in auto-x.
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The total stopping distance of a
meter then gives the deceleration force on the car at around 40 g. -
Now we know from the black box crash recorders in Indy cars that drivers
can ride out 40 g crashes with no more than bruising (the limit of human
tolerance is being approached at about 50 g). Why not in David’s case?
The first reason is that David “submarined”. Basically, he slid partly
underneath the lap belt. As it rode up his stomach to his chest it
bruised his spleen, then it went up and broke some ribs, which in turn
punctured a lung. His feet were forced down to the footwell, with
forces being directly transferred into a collection of vulnerable small
bones and joints.
Hanging on to the wheel, his arm was broken as he instinctively tried to
stop himself going forward. This was not enough to stop him being
violently flexed over the lap belt so far that he hit his helmet hard on
the steering wheel, bending the rim about 30 degrees forward. The
impact was enough to break a bone in his neck, just as it was at full
stretch.
Because problems with the harness and its installation and use could
have contributed to these injuries, we studied it carefully. It was a
six-point belt, with two-inch webbing. The shoulder belts had been
routed over a transverse chassis rail behind his shoulders and down to a
lower rail at the bottom of the car. The crotch straps were joined at a
central single latch plate. David confirmed that they were quite loose,
and could be clipped into the buckle very easily.
The submarining happened because there was little to stop it. Crotch
straps are there for two reasons. Not only do they have a direct effect
in preventing sliding underneath the lap belt, they also stabilize the
whole system. Unlike the tree-point belts in a passenger car, the
buckle of a race harness is in the center. This means as soon as the
shoulder belts are loaded, they pull the lap belt upwards and the lower
part of the body tries to shoot underneath. This killed Jochen Rindt,
who told me in 1969 that although he had come to accept a harness in the
Lotus, he would never wear crotch straps. In his crash at Monza his lap
belt ended up near his neck, rupturing his liver on the way. Australian
child car seats, which also have central buckles, have crotch straps for
exactly the same reason.
The excessive flexion of the upper part of David’s body started when he
finally got held up by the loose crotch straps, by which time his feet
were mashed in the footwell. The flexion was allowed by the
geometrically loosened shoulder belts and increased by the stretching
allowed by the long length of the straps.
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so, are you trying to say that a 3pt. stock belt would have saved his life? Seatbelts have taken plenty of lives as well as saved, and because this one example, no one should have 4 pt. harnesses???? Im not trying to start a fight, but come on??? his harnesses mounted the way they are will not hurt him anymore than a stock belt. Me personally, I hate 4pt. harnesses, they are a pain in the ass, and uncomfortable to me for a street car, got rid of mine about 8 years ago.
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Originally posted by RobBobby didnt know about the possible downsides. Now he has some food for thought. He's a big boy and can make his own decisions.
Bump for a very sexy car! :D
-Dannever enough money...
'95 240sx base - RB25DET in progress
'87 325ic - Project daily
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Originally posted by mikeedlerso, are you trying to say that a 3pt. stock belt would have saved his life? Seatbelts have taken plenty of lives as well as saved, and because this one example, no one should have 4 pt. harnesses???? Im not trying to start a fight, but come on??? his harnesses mounted the way they are will not hurt him anymore than a stock belt. Me personally, I hate 4pt. harnesses, they are a pain in the ass, and uncomfortable to me for a street car, got rid of mine about 8 years ago.
think about it. what happens when you tug at the shoulder strap on a 3pt harness? the lap belt gets tighter. what happens when you tug on the shoulder strap on a 4pt harness with the buckle in the middle center? it pulls the lap belts up, letting someone slide under them, causing such complications or deaths as the article mentioned.
read up on NASA or similar CCR, the regulations for club racing, and you'll see they are mandating 5+pt harnesses now. and they are trying to cut down on HPDE participants who use 4pts as well.
mike, enjoy your ignorance if you want. I'm saying 4pt harnesses are being no longer allowed in organizations, and there is a difference between 3 and 4pt harnesses because of the buckle location whether you can comprehend it or not. and they shouldn't be used (except perhaps for auto-x). not because of one example, but because they are unsafe for the same reason the person died.
Wells, you're fine. you are a grown up and now better informed on the subject, and can decide how you chose. On the other hand, Mike is a dumb waffleswaffleswaffleswaffles.
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Originally posted by rs4pro3Looks great Bobby, Now bring it up here to the dragon and enjoy some real twisties;-)
[THE 501 club - Founding Member]
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