|08-12-2009 08:14 PM|
Tech...You almost made me fall off my chair...LOL.. That's some funny stuff there !!!!LOL
|08-12-2009 07:57 PM|
If you plan to be in a situation where you actually need a 5 point harness, you need more framework than a 1977 unitized body has to offer.
And the sheetmetal floor, is not a good attachement point.
Now, with proper framework and a rollcage, the 5 point harness can be properly installed without rendering the back seat useless. (albeit the back seat of a '77 firebird, was pretty much useless anyway, unless yer both small people, )
|08-12-2009 06:34 PM|
|Tomlowe523||Its a 77 Trans Am. By law its my dads, I'm only 17, I can't have a car in my name, but yes I'm free to make modifications to it. It is already modified to a certain extent, it has a built 455 in it. Weight reductions such as the front bumper is gone, the A/C compressor, condensor, blower motor,etc.|
|08-12-2009 01:46 PM|
He's 17. That back seat could be the geographic focus of his existance. But the idea of having the 5-point belts is still good, both from the safety perspective as well as the image perspective.
Is the car a 2-door? 4-door? Is it yours (are you free to modify it without getting in big trouble)?
|08-05-2009 03:11 AM|
|08-05-2009 03:08 AM|
|techinspector1||I didn't mean to suggest that shoulder belts mounted at the package tray were legal to go quicker than 11.50. I thought this was just a street car that he maybe wanted some extra protection in. A simple lap belt is all you need down to 11.50, but at 11.49 and quicker you need the 5-point belts installed per the photo I posted.....with a roll bar or roll cage.|
|08-04-2009 09:54 PM|
|08-04-2009 02:51 PM|
|Tomlowe523||That would still make the back seat unusable. At the very least inconvenient to sit it. If I get an aluminum seat from Kirkey or something could I weld blocks on to the back of the seats then drill and tap them, then bolt the belts to the seat?|
|08-04-2009 01:30 PM|
It's true that mounting the shoulder belts to the floor can compress the spinal vertebrae in a crash. The angle of pull is all wrong. Shoulder belts should be mounted even with the shoulders to a maximum of 4" below the shoulders. Also, pay attention to the crotch strap mount. DO NOT attach it at the front of the seat. See the attached photo for proper 5-point belt installation.
If you want to use shoulder belts without a roll bar/cross bar, then rig up a mount back at the shelf panel (package tray).
|08-04-2009 12:11 PM|
Mounting 5 Point harnesses to the floor
Is this safe? I've heard that If the mounting point isn't above your shoulders or equal to them it will compress your spine in a collision. I'd put a roll bar in but I don't want the back seat to be out of commission.