Quote:
Originally Posted by Radiation Joe
I'm sure we can all come up with unique situations in which one design wins out over others, however, I still believe that a 4-point harness is safer than a 3 point in the majority of situations. Your point is valid, none-the-less. In a roll-over, with only an inch or two above one's helmet, even a slight collapse of the roof can have devastating consequences. I doubt, however, that a three point system is significantly safer in that situation.
I intend to have a pair of harnesses installed in my car before I take it to the track. I am sure that the majority of instructors are more comfortable with a four point than the stock belts. Four point belts also make it possible to utilize a Hans, which is safer still.
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Be aware of track rules, as many North American tracks do not allow 4 point Harnesses at all.
I am not saying that the 3 point is the safest solution, but it has been proven in tests that a 4point harness without proper role protection puts the driver at significant risk.
I run a 6 point harness and a full cage in my track vehicle.