 Racing Harnessess, Install |
 Mar 4, 2004 - 9:54 PM
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 Enthusiast  Joined Dec 4, '03 Currently Offline Reputation: 0 (0%)  |
Ive been wondering how do you install a 3 point racing harness when you dont have a roll cage??
I thought you just bolt it down to the floor but where is a brace to attach it to. --------------------  hows it taste motha f*cka |
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Mar 5, 2004 - 10:17 AM
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Enthusiast Joined Jan 16, '03 From Wichita KS Currently Offline Reputation: 0 (0%) |
i thought i heard its very dangerous to bolt it to the floor because in an accident it compresses your spine and there is to much downward force
i'm not sure someone wanna back me up |
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Mar 5, 2004 - 11:42 AM
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Enthusiast Joined Nov 18, '02 From Texas Currently Offline Reputation: 0 (0%) |
Yes, it is incorrect to just mount it to the floor. The shoulder restraints need to be mounted to a bar that is directly behind the holes where the come through. This way, on impact, you are held correctly into the back of the seat and not pulled to the bottom.
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Mar 5, 2004 - 11:52 AM
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 Enthusiast Joined Aug 29, '02 From Dallas, Tx Currently Offline Reputation: 0 (0%) |
First off, you already have a 3-point harness....the stock seatbelt attaches at 3 points. You're thinking of a 4,5,or 6-point racing harness.
Both the above guys are correct. You'll have to have a harness bar made, or install a cage to mount the belt properly. There is an exception to this rule however. If you're only using the harness for autox where the chances of a collision are less than getting hit by lightning, then it is acceptabe to clip it into the rear seat belt. This is how my harness is done. It is not there for protection in a crash, it is only there to keep me from sliding around in the car at over 1g and help me feel what the car is doing. I never use it on the street. |
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Mar 5, 2004 - 12:15 PM
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Enthusiast Joined Nov 4, '02 From Davenport Iowa Currently Offline Reputation: 0 (0%) |
I was under the assumption that you could mount them to the floor as long they atleast came up and over the bar behind the seat and then came forward to the seat - PLEASE correct me if Im wrong on that!
--------------------  99 project version 3.0.. hello SEMA 2010 =) |
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Mar 5, 2004 - 12:52 PM
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Enthusiast Joined Aug 29, '02 From Dallas, Tx Currently Offline Reputation: 0 (0%) |
Um, why would you need to mount them to the floor if you have the bar there? Bad bad idea. There are wraparound harnesses that are made to go around the cage bar behind the seat and require no brackets.
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Mar 5, 2004 - 1:16 PM
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Enthusiast Joined Nov 4, '02 From Davenport Iowa Currently Offline Reputation: 0 (0%) |
my harnesses are bolt in ones.. and I really dont wanna mess with straps goin all the way to the rear seat area just to mount them... I have seen it done before and that is why I asked if Its a bad idea or not... the set up im talkin about still goes over the roll cage bar behind the seat like it should.. I know enuf not to just have them directly come down the back of the seat to the floor.. the set up Im talkin about comes straight back to the bar like it should then angles down 90 degrees and mounts onto the floor. It makes sense to me that in an accident it would pull you back not down, figure this setup would be fine but wanted to make sure it wasnt a big NO NO that I have somehow over looked that last 8-10 years 
-------------------- 99 project version 3.0.. hello SEMA 2010 =) |
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Mar 5, 2004 - 6:16 PM
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Enthusiast Joined Dec 4, '03 Currently Offline Reputation: 0 (0%) |
so can you get a bar that attaches from each seatbelt post on the door frame? That runs across the back of the driver/passenger seats. I remember seeing something in Super Street that a company sold a bar that bolts onto the seatbelt part and connects to both of them so you can install harnessess.
Yeah i thought 3 pt harnessess had 2 straps on the sides and one that was attached to the roll cage? -------------------- hows it taste motha f*cka |
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Mar 6, 2004 - 7:29 PM
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Enthusiast Joined Aug 29, '02 From Dallas, Tx Currently Offline Reputation: 0 (0%) |
Once again, there is no such thing as a 3-point harness....its just a seatbelt.
Yes, they exist, but to my knowledge, nobody makes one for the celica. You'd have to have one custom made.
Lets back up. Do you have a cage or a harness bar? I think you're making this way more complicated than it has to be. Many harnesses come with the hardware to bolt in. And nearly all that come with that configuration can be converted to wrap around the bars. The wrap around style are far superior for a number of reasons. In a crash, you harness stretches, the longer it is the more it stretches. If its really long, your head can and will hit the steering wheel and if that happens you're in deep do do. Secondly, bolting it to the floor seems like a good idea, and it can work, but you have to be very, very careful with how you do it. Much of the metal in the floor is pretty thin, it will totally tear out in a crash if not supported VERY well. Yet another reason why the wrap around style is better. The seatbelt attachment points are already reinforced (where a harness bar would bolt in) and if you have a cage, its already way stronger. Dynamic forces in a crash can be insanely large. Forces up to and exceeding 60g are not uncommon. As an example I weigh 165lbs. In a 60g impact, I would exert a force of almost 10,000lbs on the belts in the car (and also possibly the seat, another reason to buy good seats). I've seen lesser impacts break every motor and tranny mount in a car. Not because any part of the drivetrain was touched, but because the force due to deceleration was so great that the mounts failed. The safety systems in the car were well designed, the driver was fine. The car wasn't even hurt that bad but it gives you an idea how serious this issue is. |
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Mar 7, 2004 - 1:49 AM
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 Enthusiast Joined Nov 15, '03 From mississippi Currently Offline Reputation: 0 (0%) |
So basicly it seems that harnesses even though they look cool can cost a pretty penny have installed correctly. Would it be better (for safety reasons) to just have your seats reapolstered instead of buying new seat and to use stock seat belts??? I know I don't want to spend a fortune on just the seat belts. I would like to have them but if it is unsafe why put them in to begin with??? peace, William |
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Mar 7, 2004 - 12:12 PM
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Enthusiast Joined Aug 29, '02 From Dallas, Tx Currently Offline Reputation: 0 (0%) |
Yeah, if you don't have the money to do it right, you're a lot better off with stock stuff (as long as its in good condition structurally).
I can't believe that DOT or somebody hasn't cracked down on some of the cheap ass 'racing' seats out there. Very unsafe in some cases. Did anybody see SCC's article on seats a while back? If you noticed, all the seats with FIA approval were mega bucks. Thats because they've gone through the testing and you will have the piece of mind of knowing that they're not going to kill you if used properly. |
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Mar 7, 2004 - 12:55 PM
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Enthusiast Joined Dec 4, '03 Currently Offline Reputation: 0 (0%) |
ok to make this easier.
Where can i get a harness bar? And if its custom how much do you think it would cost? ---Scott -------------------- hows it taste motha f*cka |
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