2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

does anyone have 4point harnness in there fc

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Old Nov 7, 2005 | 02:52 AM
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DriftingB26RX7's Avatar
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does anyone have 4point harnness in there fc

can you tell me how you hooked it up and can anyone pose pics ???
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Old Nov 7, 2005 | 02:58 AM
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By Schroth. Take a look at their products here:

Soloracer.com...

Otherwise you need to wrap it around a harness bar which is intergrated into your rollbar or rollcage. A third option is wrapping/bolting/clipping your harness onto a strut tower brace. This isn't a good option however because you can imagine what happens if you are hit in a corner, or if your suspension otherwise breaks.
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Old Nov 7, 2005 | 09:34 AM
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send me your email and I'll show you how mine was done
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Old Nov 7, 2005 | 09:47 AM
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Its not very safe running a harness in a car without a rollcage.
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Old Nov 7, 2005 | 02:48 PM
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I have a custom made chassis brace in my vert. The hinge on each side of the roof is held on by three bolts, the top two of which are one-on-top-of-the-other. I made brackets that use the same holes with longer bolts, and between these is a 1 3/8" stainless tube running horizontally. There is a verticle tube from the middle of the first tube straight down to the crossways reinforcing beam, like a "T". From that "T" junction, I have a third tube running diagonally down and forward to the tunnel, where the console used to be. This stiffened the car tremendously. It is basically a roll bar without the bar that actually goes over your head, so I guess it is a non-roll bar. Sorry but I can't post pics. Anyway, the horizontal tube is 3-4 inches directly behind the openings in the seats, and my harnesses are attached to it.

When you buy the harnesses, follow the guidelines about angles and attachment hardware, without these it is much more dangerous than the factory belts!
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Old Nov 7, 2005 | 04:46 PM
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Where a good place to find a simple rollcage that you can mount harnesses to? Preferably a non-expensive one since its not a full fledged race car.
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Old Nov 7, 2005 | 05:30 PM
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Belts

IIRC Factory belts are made such that if you were in a situation that the top of the car became crushed that you would effectively "slide" down when pushed.
The 4 point belts will keep you in your same position in the seat, thus sealing your fate of a broken neck/crushed skull/death...

The roll cage is not simply something to attach the belts to, but your protection from the cave in of the roof (or lack thereof roof on a convertible)
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Old Nov 8, 2005 | 07:37 AM
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I understand all that. When my belts are snugged up tight I can't move an inch forward or sideways, but I can still slip down under them when I choose. I can't vouch for every case, but maybe for me its just the way I have them set up. I think it would work the same way. Roll overs are a miniscule percentage of accidents, and in a convertible with the top stowed, I just can't see flipping over as something imminently survivable anyway.
I am planning on adding the upper portion of the roll bar at a later date, especially if I ever take this car to the track.
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Old Nov 8, 2005 | 08:07 AM
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Originally Posted by Ronald E. Jacques
I understand all that. When my belts are snugged up tight I can't move an inch forward or sideways, but I can still slip down under them when I choose. I can't vouch for every case, but maybe for me its just the way I have them set up. I think it would work the same way. Roll overs are a miniscule percentage of accidents, and in a convertible with the top stowed, I just can't see flipping over as something imminently survivable anyway.
I am planning on adding the upper portion of the roll bar at a later date, especially if I ever take this car to the track.
Yep, I follow the same logic- its all about probability. The majority of accidents that occur are frontal or rear accidents (where the 3-point and furthermore 4-point harness has more use anyway), while rollovers are rather rare. In the case of a rollover, I wouldn't say a 3 point leaves you any more safe just because you "slide" around. You can just as well be thrown out of the vehicle (most cases resulting in death) with all the "sliding" you're doing, thus making that type of accident more severe and at the same time proving its unpredictability. I believe side, rear, and accidents from odd angles cause more damage to the lower back, spine, pelvis and collar regions with a 3-point just because it doesn't distribute force equally (as possible) across the body. At the same time though, with a 4 point holding you in too firmly, it places more strain on your neck because its the only portion still in motion at impact.

Basically, there is no perfect seatbelt. Many accidents are just too unpredictable, so you just try to work within the greatest margin of safety while hoping for the best.
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