Four point harness install
05-11-2007, 05:15 PM
#1
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Four point harness install
Since my car is built for performance and i do some autocrossing, I decided to install some four point harnesses. My local speed shop, CNC Motorsports, had some nice red Sparco 2 inch "street" type harnesses in stock.
The lap belts were a straightforward install - left belt to left OEM belt position, and right lap belt bolted to seat rail bolt. After much discussion, I decided to bolt the rear belts to the hidden child seat restraining loops sandwiched between the upper and lower sections of the rear seats. The question became - How do the belts attach. My brilliant engineering student son suggested a carabiner . . you kknow . . the things rock climbers use. here is a pic of a red anodized carabiner I bought from REI:
I got the sturdiest carabiner I could find, that wasn't too huge. Then it simply clips to the rear child seat loops like so:
Finished product looks like this:
The rears detach very quickly by unclipping the carabiners. When you drive with harnesses on, its much easier to do spirited driving without sliding all over the place. I love the secure feeling.
The lap belts were a straightforward install - left belt to left OEM belt position, and right lap belt bolted to seat rail bolt. After much discussion, I decided to bolt the rear belts to the hidden child seat restraining loops sandwiched between the upper and lower sections of the rear seats. The question became - How do the belts attach. My brilliant engineering student son suggested a carabiner . . you kknow . . the things rock climbers use. here is a pic of a red anodized carabiner I bought from REI:
I got the sturdiest carabiner I could find, that wasn't too huge. Then it simply clips to the rear child seat loops like so:
Finished product looks like this:
The rears detach very quickly by unclipping the carabiners. When you drive with harnesses on, its much easier to do spirited driving without sliding all over the place. I love the secure feeling.
05-12-2007, 10:01 PM
#9
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Originally Posted by xoomer.com
The front looks awesome, awesome, awesome..... but the hookup in the back got me confused. 
05-12-2007, 11:05 PM
#12
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Xoomer, I like the belts, even for daily driving. Ill most likely leave them in but just "relax" them if people need to be i nrear seat.
Chern: Thanks!! Any more ideas for subtle red accents? Here is a shot of engine cover with red letters:
Chern: Thanks!! Any more ideas for subtle red accents? Here is a shot of engine cover with red letters:
05-12-2007, 11:17 PM
#13
Nations 1st 6th Gen Turbo
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Originally Posted by DeusExMaxima
Xoomer, I like the belts, even for daily driving. Ill most likely leave them in but just "relax" them if people need to be i nrear seat.
Chern: Thanks!! Any more ideas for subtle red accents? Here is a shot of engine cover with red letters:
Chern: Thanks!! Any more ideas for subtle red accents? Here is a shot of engine cover with red letters:
05-13-2007, 09:13 AM
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Chern: Exactly what i was thinking. Know where i can get one?
04black: Its actually very easy to get in and out of. Its meant for street driving. Shoulder and lap harness are together, so it buckles like a seat belt.
04black: Its actually very easy to get in and out of. Its meant for street driving. Shoulder and lap harness are together, so it buckles like a seat belt.
05-13-2007, 03:06 PM
#18
you have a carabiner, that doesnt scream jury rigged to you? its your life, not mine. You really need to install eyebolts, snap hooks, and 4" backing plates
ie parts from: http://www.discoveryparts.com/cgi-bi...?product=hhard
ie parts from: http://www.discoveryparts.com/cgi-bi...?product=hhard
05-14-2007, 01:38 PM
#21
Originally Posted by Bassplayer400
Those look awesome man. Only one problem though, if you get pulled over it will be impossible to get out of a ticket when your strapped in with a four point harness 
05-14-2007, 01:58 PM
#22
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LOL, well these belts are safer than the stock 3 point shzit. By the way, back to the carabiners-being-jerry-rigged-issue, each carabiner is rated at 24 kilonewtons. A kilonewton = 224 lbs of force. I have 2 carabiners per passenger, so thats 48 kilonewtons x 224 lbs = 10,752 lbs of force. 10,752 divided by 200 lbs of body weight is 53Gs of force!!!! Remeber, too, that the shoulder straps only restrain your upper body!!! Nothing jerry-rigged about using carabiners, baby!!!! Dont believe me? Check this website on my math:
http://www.southeastclimbing.com/faq/faq_kilonewton.htm
http://www.southeastclimbing.com/faq/faq_kilonewton.htm
05-14-2007, 06:06 PM
#23
Originally Posted by DeusExMaxima
Xoomer, I like the belts, even for daily driving. Ill most likely leave them in but just "relax" them if people need to be i nrear seat.
Chern: Thanks!! Any more ideas for subtle red accents? Here is a shot of engine cover with red letters:
Chern: Thanks!! Any more ideas for subtle red accents? Here is a shot of engine cover with red letters:
paint the red battery turminal cover the same color as the rest of the red, or do something with the battery for some more red
05-14-2007, 10:22 PM
#24
Originally Posted by JSutter
you have a carabiner, that doesnt scream jury rigged to you? its your life, not mine. You really need to install eyebolts, snap hooks, and 4" backing plates
ie parts from: http://www.discoveryparts.com/cgi-bi...?product=hhard
ie parts from: http://www.discoveryparts.com/cgi-bi...?product=hhard
In the Mythbuster show, the test dummy sustained 100G hits during some of the experiments. Angular velocity and stuff.
A neck brace maybe?
I wish you well.
05-15-2007, 06:12 AM
#26
Originally Posted by Bassplayer400
Those look awesome man. Only one problem though, if you get pulled over it will be impossible to get out of a ticket when your strapped in with a four point harness
05-15-2007, 07:04 AM
#27
Originally Posted by !PrjctMax!
pulled over...? All that he has to do is downshift and go through the turn at a higher rate of speed and watch the cop cruiser fly off the road cause' his POS can't hold the road fo' shiet!
05-15-2007, 11:05 AM
#28
Originally Posted by !PrjctMax!
pulled over...? All that he has to do is downshift and go through the turn at a higher rate of speed and watch the cop cruiser fly off the road cause' his POS can't hold the road fo' shiet!
05-15-2007, 01:05 PM
#29
Originally Posted by mavssolja
hhahah police cruisers are tuned and have upgraded suspensions, good luck let us know how ur court date goes when u try.
If you are talking about the new Dodge Chargers then yes, but a regular Crown Victoria that is loaded with hundreds of pounds of equipment and the weak motor that they call a "V-8," and the thing is more of a boat than the 6th gen itself...let alone a 6th gen with "tons" of suspension mods and a few motor mods! 
Not saying that I would, I was just saying that Dues should since his car is
and looks like a rocket and probably drives close to one. But a
catching a 6th gen...
lolololedit: it was more of sarcasm and joking anyways guys!
05-15-2007, 02:12 PM
#30
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I can guarantee u, that I would not be caught if it was cop car vs. me. If they didnt have radios, they wouldn't stand a chance. The car is as fast as it looks, and I can drive it, hehe. So if I saw this---->, I would do this ----->
, I would do this ----->
05-15-2007, 04:23 PM
#31
Originally Posted by DeusExMaxima
I can guarantee u, that I would not be caught if it was cop car vs. me. If they didnt have radios, they wouldn't stand a chance. The car is as fast as it looks, and I can drive it, hehe. So if I saw this---->, I would do this ----->
, I would do this ----->
05-16-2007, 05:31 AM
#32
We understood your joke Dan, and nobody doubts that Deus would outrun them, but with police technology and numbers its a whole different story...not to mention what the 6th gen looked like after the trio was running away from cops couple of months ago. (I think most of us here know what I am talking about)
05-16-2007, 06:28 AM
#33
Originally Posted by xoomer.com
We understood your joke Dan, and nobody doubts that Deus would outrun them, but with police technology and numbers its a whole different story...not to mention what the 6th gen looked like after the trio was running away from cops couple of months ago. (I think most of us here know what I am talking about)
05-16-2007, 07:16 AM
#34
Originally Posted by DeusExMaxima
I can guarantee u, that I would not be caught if it was cop car vs. me. If they didnt have radios, they wouldn't stand a chance. The car is as fast as it looks, and I can drive it, hehe. So if I saw this---->, I would do this ----->
, I would do this ----->oh wait you've already done that in this thread... a carabiner holding your seatbelt is against EVERY racing sanctioning body known to man and you would be immediately escorted off the facility if you showed up with something like that at any Houston SCCA events. There is absolutely no way I would put my life in the hands of a couple aluminum clips.
Take the harnesses back to the shop you bought then and purchase a proper snap-in harness, like this one.
http://sportscar-parts.com/graphics/...p04604mprs.jpg
They're the same price as the bolt-in that you've got, and the attachments are MUCH safer and won't accidentally come loose on you.
05-16-2007, 08:32 AM
#35
Originally Posted by Matt93SE
Don't be stupid man..
oh wait you've already done that in this thread... a carabiner holding your seatbelt is against EVERY racing sanctioning body known to man and you would be immediately escorted off the facility if you showed up with something like that at any Houston SCCA events. There is absolutely no way I would put my life in the hands of a couple aluminum clips.
Take the harnesses back to the shop you bought then and purchase a proper snap-in harness, like this one.
http://sportscar-parts.com/graphics/...p04604mprs.jpg
They're the same price as the bolt-in that you've got, and the attachments are MUCH safer and won't accidentally come loose on you.
oh wait you've already done that in this thread... a carabiner holding your seatbelt is against EVERY racing sanctioning body known to man and you would be immediately escorted off the facility if you showed up with something like that at any Houston SCCA events. There is absolutely no way I would put my life in the hands of a couple aluminum clips.
Take the harnesses back to the shop you bought then and purchase a proper snap-in harness, like this one.
http://sportscar-parts.com/graphics/...p04604mprs.jpg
They're the same price as the bolt-in that you've got, and the attachments are MUCH safer and won't accidentally come loose on you.
Dude they are not "a couple aluminum clips". These are the same carabiners that are used in rock climbing, etc. I've seen people going up a straigh-up cliff and they were hanging on these. You think anyone would use these if they werent safe?
05-16-2007, 08:46 AM
#36
Originally Posted by xoomer.com
Ouch.
Dude they are not "a couple aluminum clips". These are the same carabiners that are used in rock climbing, etc. I've seen people going up a straigh-up cliff and they were hanging on these. You think anyone would use these if they werent safe?
Dude they are not "a couple aluminum clips". These are the same carabiners that are used in rock climbing, etc. I've seen people going up a straigh-up cliff and they were hanging on these. You think anyone would use these if they werent safe?
Also note the clips on those things aren't safety clips. someone sits in the back seat on them and pushes them sideways and down in relation to the clip, then they will quickly and easily become unlatched.
At that point, the belt goes from a safety device to a metal weight on the end of a rope that aims straight at your head in a frontal collision. In a rollover, it's even possible the thing could wrap around your neck and you can hang yourself with your own seatbelt.
there's a reason these harnesses were made with bolt-in ends or locking safety clips on them and not carabiners. If they were designed to be used like that, they'd have come SFI certified from the factory with them. Also note those belts are most likely not DOT certified, so you can't even legally use them on the street. Try getting through a safety inspection on the street or track with those carabiners holding your seatbelts together, and you'll be quickly failed. get pulled over by a cop that sees you driving with them on the street and you'll be ticketed and fined if they see them.
Even though any other racer out there will 1000% disagree that those are safe to use, at ABSOLUTE MINIMUM, he should be using locking clips, as pictured here:
The setup he posted above is simply unsafe and needs to be redone properly using the correct parts for the job.
05-16-2007, 09:11 AM
#37
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The other detail is that carabiners are designed to handle ropes, not the metal tab that you looped it through. A rope is going to exert a far different type of stress on the soft aluminum carabiner than that hardened metal tab will in an impact. Add to that the stretch you get in a rope vs. the zero stretch web belts. Carabiners are very strong, and stand up well when subjected to the stresses they are designed for. Used improperly they will open up or break.
Oh and lower ***hers for child seats are designed for 80lbs or less arent they.
It may look good, but you would be safer with the stock.
Oh and lower ***hers for child seats are designed for 80lbs or less arent they.
It may look good, but you would be safer with the stock.
05-17-2007, 07:54 AM
#39
Originally Posted by 04BlackMaxx
Its gonna be fun sitting in the backseat too 
Deus said he will remove the harness when someone will want to sit in the back.
05-17-2007, 10:35 AM
#40
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I have been fastening my OEM belt over the harness to eliminate any "danger" of my shoulder harness breaking. I get the best of both worlds. I really like the secure feeling of having the belts hold you in. Spirited driving is much more pleasurable.