On track experiences and video's 991 GT3 only.
#769
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Joined: May 2012
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From: Mid-Atlantic (on land, not in the middle of the ocean)
That's what I suggest to passengers in my GT3 who don't have head/neck restraint (HNR). There may be crash scenarios where 6-pt without HNR is better than 3-pt, but IMO the evidence suggests that 6-pt without HNR is more likely to result in a basal skull fracture in a frontal impact, and generally I'd prefer to rely on the car's built-in safety systems based arond the 3-pt belt, rather than use a 6-pt without HNR, which I consider to be an incomplete system.
I continue to find people using 6-pt belts without HNR when 3-pts are available, and often being advised to do so by others, without having any significant knowledge regarding these issues and the attendant risks.
I continue to find people using 6-pt belts without HNR when 3-pts are available, and often being advised to do so by others, without having any significant knowledge regarding these issues and the attendant risks.
Last edited by Manifold; 10-21-2015 at 07:41 PM.
#770
With all due respect guys. I really appreciate the word of warning, but the guy sitting next to me is not some Joe enjoying a GT3 bashing. He has a background in countless racing involving VLN, Porsche Carrera Cup, and so on. I think he is well aware of the risks taken not having a Hans system while entrusting his life in another persons hand.
#771
With all due respect guys. I really appreciate the word of warning, but the guy sitting next to me is not some Joe enjoying a GT3 bashing. He has a background in countless racing involving VLN, Porsche Carrera Cup, and so on. I think he is well aware of the risks taken not having a Hans system while entrusting his life in another persons hand.
I find that most folks just don't know that. Even the HPDE clubs around here are so stuck on enforcing helmet rules, but let folks run in 6-points without a HANS... I haven't run with PCA yet, but in Audi Club they require the driver and passenger to run the same restraints, which forces the driver to use a 3-point if the passenger doesn't have a HANS and you don't want to let them use a 6-point without it... silly.
#772
I think it's pointless even fitting the passenger 6 point harness. I take lots of people around the track and none of them seem to own a hans so they use the 3 pt. also the passenger 6 pnt gets in the way when my wife and I tour between the tracks (we cover most NZ tracks annually so around 6000 km touring pa between the 8 tracks in NZ). I sold the passenger harness to another racer...
#774
Good evening
I am the passenger
Yes, the 6 point without Hans is incomplete. But, on race tracks I consider the 3 point insufficient as well. But in a frontal impact arguably a 6 point is worse...
Was a judgement call - 6 point or 3 point. Went with 6. But I quit the road car business a while back because I think the lack of full cages is a problem. But i digress - At the end, it's a risky business regardless of which seat you get into. I've had a few shunts so I know first hand...
I am the passenger
Yes, the 6 point without Hans is incomplete. But, on race tracks I consider the 3 point insufficient as well. But in a frontal impact arguably a 6 point is worse...
Was a judgement call - 6 point or 3 point. Went with 6. But I quit the road car business a while back because I think the lack of full cages is a problem. But i digress - At the end, it's a risky business regardless of which seat you get into. I've had a few shunts so I know first hand...
#775
Rennlist Member
Joined: May 2012
Posts: 13,427
Likes: 4,632
From: Mid-Atlantic (on land, not in the middle of the ocean)
With all due respect guys. I really appreciate the word of warning, but the guy sitting next to me is not some Joe enjoying a GT3 bashing. He has a background in countless racing involving VLN, Porsche Carrera Cup, and so on. I think he is well aware of the risks taken not having a Hans system while entrusting his life in another persons hand.
Ah, so he knows he's more likely to die in a crash in the 6-points without a HANS than the 3-points, yet wears them anyway? For my own liability sake, I wouldn't let someone do that... you never know when something might go wrong on track.
I find that most folks just don't know that. Even the HPDE clubs around here are so stuck on enforcing helmet rules, but let folks run in 6-points without a HANS... I haven't run with PCA yet, but in Audi Club they require the driver and passenger to run the same restraints, which forces the driver to use a 3-point if the passenger doesn't have a HANS and you don't want to let them use a 6-point without it... silly.
I find that most folks just don't know that. Even the HPDE clubs around here are so stuck on enforcing helmet rules, but let folks run in 6-points without a HANS... I haven't run with PCA yet, but in Audi Club they require the driver and passenger to run the same restraints, which forces the driver to use a 3-point if the passenger doesn't have a HANS and you don't want to let them use a 6-point without it... silly.
PCA has a similar rule, but it's worded in an ambiguous way which results in some people following it and some not.
I think it's pointless even fitting the passenger 6 point harness. I take lots of people around the track and none of them seem to own a hans so they use the 3 pt. also the passenger 6 pnt gets in the way when my wife and I tour between the tracks (we cover most NZ tracks annually so around 6000 km touring pa between the 8 tracks in NZ). I sold the passenger harness to another racer...
Good evening
I am the passenger
Yes, the 6 point without Hans is incomplete. But, on race tracks I consider the 3 point insufficient as well. But in a frontal impact arguably a 6 point is worse...
Was a judgement call - 6 point or 3 point. Went with 6. But I quit the road car business a while back because I think the lack of full cages is a problem. But i digress - At the end, it's a risky business regardless of which seat you get into. I've had a few shunts so I know first hand...
I am the passenger
Yes, the 6 point without Hans is incomplete. But, on race tracks I consider the 3 point insufficient as well. But in a frontal impact arguably a 6 point is worse...
Was a judgement call - 6 point or 3 point. Went with 6. But I quit the road car business a while back because I think the lack of full cages is a problem. But i digress - At the end, it's a risky business regardless of which seat you get into. I've had a few shunts so I know first hand...
#777
Thanks for the feedback montoya! It was only my second day ever at Pacific so working on getting up to speed cautiously... definitely not a place you want to get something very wrong! 1:29 sounds like a good target time for a racer going 10/10ths in the GT3. I'm hoping to clean up my line enough for 1:31 or so as an amateur
#778
Ah, so he knows . . . .
. Even the HPDE clubs around here are so stuck on enforcing helmet rules, but let folks run in 6-points without a HANS... I haven't run with PCA yet, but in Audi Club they require the driver and passenger to run the same restraints, which forces the driver to use a 3-point if the passenger doesn't have a HANS and you don't want to let them use a 6-point without it... silly.
. Even the HPDE clubs around here are so stuck on enforcing helmet rules, but let folks run in 6-points without a HANS... I haven't run with PCA yet, but in Audi Club they require the driver and passenger to run the same restraints, which forces the driver to use a 3-point if the passenger doesn't have a HANS and you don't want to let them use a 6-point without it... silly.
Love the Audi Club, and I believe also current PCA Club HPDE rules/thinking process, "If one dies, they must all die together" line of reasoning.
#779
Ever since Dale Earnhardt died, the HNR awareness in the motorsports world has come to the front page. The tremendous forces generated by rapid deceleration is what is to be feared. It can rip apart internal organs and break the vertebrae with resultant spinal cord injury. A traditional 3 point safety system was designed for occupants "not" to be wearing helmets. Thus, all surfaces are soft to touch (no roll cages in the USA), there are airbags strategically positioned for when the occupant is thrown around, and the car is designed to diminish the energy of the crash by crumple zones, which diminish the G-forces applied to the occupant. Any additional weight to the head will increase chances of neck injury in all crashes. It becomes a "keep the skull from fracturing" vs "keep the neck from breaking" discussion. Consider motorcycles that crash at the track. Injuries are typically lower extremity and pelvic injuries. The helmeted head is flopping along the ground, along with the body, diminishing the energy of the crash.
I believe a lightweight helmet is important whether 3 point or 5/6 point safety systems. Most would concur, that if in a streetcar, with an unaltered OEM 3 point safety system, it is safer for your neck than if strapped into a 5/6 point safety system without a HNR (there is a trade off...as you flop around the car, if you don't hit the designed airbags and soft surfaces, internal organs can be damaged if your ribcage doesn't protect them). Imagine a head-on, car into wall accident with the 991 GT3. The car will crumple as designed (great crumple zone in a rear engine car, easy to dissipate energy), decreasing energy. A strapped in 5/6 point occupant will then have the left over energy from deceleration applied to his/her internal organs and neck. The exploding airbags will still happen, but your body will never touch them. If the force is say, 15 Gs, then an 8 lbs head, plus 4 lb helmet (12 lbs) will have 12x15= 180lbs of force applied to your supporting structures of your head. Not good.
I believe a lightweight helmet is important whether 3 point or 5/6 point safety systems. Most would concur, that if in a streetcar, with an unaltered OEM 3 point safety system, it is safer for your neck than if strapped into a 5/6 point safety system without a HNR (there is a trade off...as you flop around the car, if you don't hit the designed airbags and soft surfaces, internal organs can be damaged if your ribcage doesn't protect them). Imagine a head-on, car into wall accident with the 991 GT3. The car will crumple as designed (great crumple zone in a rear engine car, easy to dissipate energy), decreasing energy. A strapped in 5/6 point occupant will then have the left over energy from deceleration applied to his/her internal organs and neck. The exploding airbags will still happen, but your body will never touch them. If the force is say, 15 Gs, then an 8 lbs head, plus 4 lb helmet (12 lbs) will have 12x15= 180lbs of force applied to your supporting structures of your head. Not good.
#780
Rennlist Member
Joined: May 2012
Posts: 13,427
Likes: 4,632
From: Mid-Atlantic (on land, not in the middle of the ocean)
Audi Club's been an interesting kettle of fish from my past experience. But, to what I think may be a part of your point vis-a-vis safety system designs, . . . . might one assume the standard car 3 point systems (?) generally assume the occupants won't be wearing helmets - my question is it the additional weight of the helmet (generally assumed to be present in 5 & 6 point restraint systems) that while maybe not creating, at least increases the need for an HNR?
Love the Audi Club, and I believe also current PCA Club HPDE rules/thinking process, "If one dies, they must all die together" line of reasoning.
Love the Audi Club, and I believe also current PCA Club HPDE rules/thinking process, "If one dies, they must all die together" line of reasoning.
Regarding the 'equal restraints' rule, the question is whether it means that equal restraints need to be used, or just offered. Either way, PCA currently has no requirement that head/neck restraint (HNR) needs to be used, so would allow a driver using a HNR and a passenger using 6-pts without HNR. Not good. If the rule is interpreted to mean that equal restraints must be used, that means that a driver with HNR may be motivated to pressure the passenger to use the 6-pts even if he doesn't have an HNR, or the passenger may elect to use the 3-pts and thereby force driver to do the same, despite having an HNR and wanting to use it. Also not good.
To be fair, the better argument for asking the driver to downgrade to passenger's level of restraint would be that the driver will then hopefully dial it back and drive with increased safety margin, and IMO that argument has some validity. But OTOH there needs to be consideration for scenarios where a crash results from a mechanical, fluids on track, error of another driver, etc. where downgrading the driver's restraint increases the driver's risk without any benefit. Moreover, a driver using downgraded restraint may forget that it was downgraded while on track, and thus forget to dial it back. I personally am willing to drive with my HNR and take passengers who are using to the 3-pt, but I do consciously dial it back and increase safety margin due to the passenger having lesser protection.
Last edited by Manifold; 10-22-2015 at 12:27 PM.