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mav1178 · 07-20-2013, 06:48 PM

ASM (Anti-Submarining) is not an issue when a car rolls over, and the roof (safely) collapses due to its design structure.

If you're strapped in to a 3 or 4 point harness that keeps your torso intact with little movement, your head is the roll structure.

The problem is not you, the driver... it's EVERYONE ELSE on the street. What's to guarantee a drunk driver NOT driving through a red light, broadsiding you, the car hitting a curb and you rolling over?

I used to be dumb and ran a 4 point harness with a stock seat. Then I saw a guy flip a car at the track and saw how little space he had, WITH a roll cage. No amount of aggressive driving + harness protection will protect you from the unknown, i.e. everyone/thing else on the road.

-alex

Edit: see this for a brief feeling of what your helmet will feel like when you roll. The guy's car (Legacy GT I think) rolled and the roof collapsed at the A-pillar as designed. He had no harness and see where his helmet sits on the roof liner at the end.

Save the money for something more useful, not a harness.

[ame="http://www.youtube.com/watch?v=PNsrcxkyBJA"]Subaru Legacy Track Day Wreck - YouTube[/ame]

07-20-2013, 06:48 PM	#11
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,099 Times in 3,030 Posts Mentioned: 95 Post(s) Tagged: 3 Thread(s)	ASM (Anti-Submarining) is not an issue when a car rolls over, and the roof (safely) collapses due to its design structure. If you're strapped in to a 3 or 4 point harness that keeps your torso intact with little movement, your head is the roll structure. The problem is not you, the driver... it's EVERYONE ELSE on the street. What's to guarantee a drunk driver NOT driving through a red light, broadsiding you, the car hitting a curb and you rolling over? I used to be dumb and ran a 4 point harness with a stock seat. Then I saw a guy flip a car at the track and saw how little space he had, WITH a roll cage. No amount of aggressive driving + harness protection will protect you from the unknown, i.e. everyone/thing else on the road. -alex Edit: see this for a brief feeling of what your helmet will feel like when you roll. The guy's car (Legacy GT I think) rolled and the roof collapsed at the A-pillar as designed. He had no harness and see where his helmet sits on the roof liner at the end. Save the money for something more useful, not a harness. [ame="http://www.youtube.com/watch?v=PNsrcxkyBJA"]Subaru Legacy Track Day Wreck - YouTube[/ame]