So how well are your seat belts anchored?
#4
#5
So, how do you guys have your seat belts anchored?
I have yet to anchor mine. I have only installed the upper brackets Mid Fifty sells but I also bought the belts from them also. All of the lap belt/ buckle ends look like they come with a 3/8 grade 8 bolt with a really large washer(?3inches?) to go underneath. There are some L shaped brackets for the 3 point belts.
I am also upgrading the door latches to a bear claw setup. The video above scares the @#$% out of me.
I have yet to anchor mine. I have only installed the upper brackets Mid Fifty sells but I also bought the belts from them also. All of the lap belt/ buckle ends look like they come with a 3/8 grade 8 bolt with a really large washer(?3inches?) to go underneath. There are some L shaped brackets for the 3 point belts.
I am also upgrading the door latches to a bear claw setup. The video above scares the @#$% out of me.
#6
(more (Sept. 21, 2014) Fountain, CO -- Drag racer Kelly Harvey walked away with only minor injuries yesterday after his 1955 Chevy took several rolls during the Colorado Street Outlaws Drag Racing Event at Pikes Peak International Raceway (PPIR).
The racing style seat belts worn by the driver failed during the crash. "My seat belts were not mounted properly and pulled through the floor of the car," Harvey said. "I'm grateful to the staff and safety crew at PPIR for such a rapid response to my situation," he said.
Fortunately, Harvey was able to climb from of the car on his own and walk away.
"PPIR sets standards for all its events to keep drivers, crew, and spectators safe," said PPIR General Manager Bob Boileau. "However, it is the responsibility of the car owner, driver and crews to be sure their vehicles are prepared to take to the track. We're glad there were no serious injuries" he said.
I use and recommend sanctioned racing (NHRA, SCCA, NASCAR) SFI attachment methods:
1. Metal to metal mounting only, no bolts thru webbing. Attachment method needs to be based on belt manufacturers hardware, typical attachment are spring loaded hooks, or tab and metal L bracket with bolt hole. Former uses a special hardened steel solid eyebolt through floor, latter uses a hardened bolt and nut through floor and a special shoulder bolt between tab and bracket.
2. Floor mounting point for lap belt must be in a straight line from floor across wearer's pelvis (not across legs or stomach) and back to floor behind the wearer. The line of the belt should be 45* to the floor. The spacing between the mounting points should equal the width of the wear's pelvis. The belts should pivot freely at the mounting point.
3. Eye bolts and/or attachment bolts AND NUTS must be grade 5 (only!) minimum 7/16" diameter fine thread. If possible the bolts should pass through a structural member under the floor such as a sturdy crossmember. If they must be installed to the floor sheetmetal only then a 4" diameter or 4x4" square 1/8" minimum mild steel backer plate should be installed so the floor is tightly sandwiched between. (Note: the proper hardware and backer plates are available inexpensively from racing and safety equipment suppliers like Summit Racing, Jeggs, Simpson, G-Force etc.)
The racing style seat belts worn by the driver failed during the crash. "My seat belts were not mounted properly and pulled through the floor of the car," Harvey said. "I'm grateful to the staff and safety crew at PPIR for such a rapid response to my situation," he said.
Fortunately, Harvey was able to climb from of the car on his own and walk away.
"PPIR sets standards for all its events to keep drivers, crew, and spectators safe," said PPIR General Manager Bob Boileau. "However, it is the responsibility of the car owner, driver and crews to be sure their vehicles are prepared to take to the track. We're glad there were no serious injuries" he said.
I use and recommend sanctioned racing (NHRA, SCCA, NASCAR) SFI attachment methods:
1. Metal to metal mounting only, no bolts thru webbing. Attachment method needs to be based on belt manufacturers hardware, typical attachment are spring loaded hooks, or tab and metal L bracket with bolt hole. Former uses a special hardened steel solid eyebolt through floor, latter uses a hardened bolt and nut through floor and a special shoulder bolt between tab and bracket.
2. Floor mounting point for lap belt must be in a straight line from floor across wearer's pelvis (not across legs or stomach) and back to floor behind the wearer. The line of the belt should be 45* to the floor. The spacing between the mounting points should equal the width of the wear's pelvis. The belts should pivot freely at the mounting point.
3. Eye bolts and/or attachment bolts AND NUTS must be grade 5 (only!) minimum 7/16" diameter fine thread. If possible the bolts should pass through a structural member under the floor such as a sturdy crossmember. If they must be installed to the floor sheetmetal only then a 4" diameter or 4x4" square 1/8" minimum mild steel backer plate should be installed so the floor is tightly sandwiched between. (Note: the proper hardware and backer plates are available inexpensively from racing and safety equipment suppliers like Summit Racing, Jeggs, Simpson, G-Force etc.)
#7
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#8
One of the most common fatal automobile accidents are single car overcorrection crashes where the driver drops a right tire off the pavement or begins a skid, yanks the wheel in the opposite direction causing a fishtail skid and running off the opposite side of the road. Here in the tree covered Eastern US this often ends up with the car hitting a tree head on or sideways, or rolling like the car in the video.
#9
This was a private event (not NHRA sanctioned) using the pit road on a road course. Wrong surface for drag racing, both cars were all over the place. If that were an NHRA-sanctioned event, I don't think cars with big slicks and that kind of HP would be allowed without 4-point belts and a full cage. A bad idea from the start.
#10
This was a private event (not NHRA sanctioned) using the pit road on a road course. Wrong surface for drag racing, both cars were all over the place. If that were an NHRA-sanctioned event, I don't think cars with big slicks and that kind of HP would be allowed without 4-point belts and a full cage. A bad idea from the start.
I believe the original poster was trying to use this accident not as a condemnation of unsanctioned street racing, but as an example of the forces involved in an accident as a way to open a dialog on building safe and proper installation of adequate restraints.
The "old school way" of building was due to a lack of understanding, safety engineering and testing, and lack of available materials and parts, not because it was a good or safe way to do things.
#11
Yeah I was primarily aiming the post at seat belt installation, but the other issues about safety issues mentioned above cannot be ignored. I still can't get over how this guy rolled this car, went through the windshield, and then walked away. Ross is right, both cars were completely out of control. It appears he rolled it while trying to keep it off the Camaro. If you look closely at the still photo on the youtube link as he is getting out of the car, it appears that his cell phone is still clipped to his belt. HOW????!!!!
If anybody sees any close-up pics of his seat belts or the failed mounts on the internet, the HAMB, etc., please post them here. I'd love to see what setup he had.
If anybody sees any close-up pics of his seat belts or the failed mounts on the internet, the HAMB, etc., please post them here. I'd love to see what setup he had.
#14
dans 51, you are correct for the most part, but SCCA sanctioned autocross is one of the only automobile competitions where standard street automobile insurance coverage is in force. Notice I said competitions NOT "racing" because SCCA sanctioned autocrosses are classified as "driver education" events, not racing.
But except for incredible luck the insurance coverage he likely would have needed would have been either medical or life! BUT he either saved about 10 bucks in reinforcing washers and/or proper fasteners or kept true to the esthetics of the 50's look of period slide buckle type lap belts only.
If the belt mountings held and the seat mounts broke loose instead he might have been cut in half or had all his internal organs squeezed out his nose!
But except for incredible luck the insurance coverage he likely would have needed would have been either medical or life! BUT he either saved about 10 bucks in reinforcing washers and/or proper fasteners or kept true to the esthetics of the 50's look of period slide buckle type lap belts only.
If the belt mountings held and the seat mounts broke loose instead he might have been cut in half or had all his internal organs squeezed out his nose!
#15
I'm looking at an early 90s GM seat. I plan for the bolts (grade 8) to be long enough to pass through the seat, riser, and floor pan. There will be a plate below the floor pan to spread any energy over a wide area. If my seat or belts come out, they are bringing the floor pans with them.