4 point harness...hmm...

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thrasherx89
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Car: 90 hatch (91 dohc, tein, z32, ss, injen, energy, b &m)

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ok so i have a 4 point harness right now installed in my car and i would like some input from you all

1. i have the sides of the harness for the lap secured to the stock seat belt harness by a 800lb hook (like used for rock climbing) and i weigh 150 so thats good enough to handle 5.3 g's which i think is good enough but...should i upgrade to 1000lb just to be safe or is it good enough?

2. the shoulder straps i have in that lame mounting point under the rear seat mounts, and i hate it. now i hear that mounting to the c pillar bar is unsafe, but isnt that where the rear shoulder strap is mounted so im wondering why it isnt safe?

3. i was also considering mounting to the rear strut tower brace...i would put those climbing hooks on the bar (x4) and have the rear seat down and if i needed passenger i would just have the same hooks on the bottom of my seat mounts in case...one option

4. i was considering fabing something to mount similar to a harness bar but is less intrusive on rear passengers as i might have some sometimes. i was considering making a bar that mounts to where the stock front shoulder seat belt motor goes as i removed mine...and maybe having another support bar? problem would be foot clearance for the rear passengers so i would have to look into that a little more

5. other options???

thanks


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s13_chris
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Car: 90 240sx Hatch

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Stop painting things in your car blue.

Off colored interior pieces is not "CCCLLLEEAAAANANANANA""

Read up on harnesses and why 4 point harnesses are unsafe.

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thrasherx89
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wow.

its all a matter of preference and i personally dont like stock color and i didnt post this for somebody like you to get your rage out about my interior

i posted a question for different points of view on my situation

not to be critisized

get over yourself

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s13_chris
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thrasherx89 wrote:wow.

its all a matter of preference and i personally dont like stock color and i didnt post this for somebody like you to get your rage out about my interior

i posted a question for different points of view on my situation

not to be critisized

get over yourself
My preference? Bright a** blue in a 240sx is not my preference. Welcome to the internet expect to get feed back.

Points of view on your situation? It's unsafe. 4 Point Harnesses are unsafe. Don't go around telling people to get over themselves when you don't like their "preference" or opinion.

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thrasherx89
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blue is my preference thats why its in my car and not yours

and you say its unsafe...well...tell me...the point of the thread was to give me feedback to make it SAFE

and as for your oppinion, i dont care that you dont like my interior, it has nothing to do with this thread at all and when your being rude its best to just keep it to yourself

i know my current situation is unsafe because it could cause spinal compression due to its mounting points but i have read that with a correct mounting angle it would deffinately be more safe than the stock 3 point

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OutToWinPAHC
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Harnesses should attach to the harness bar, or the roll cage cross bar. And only used with a roll cage.

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thrasherx89
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so i guess this would kill all the options i posted,

thanks for the non attitude reply

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s13_chris
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thrasherx89 wrote:thanks for the non attitude reply
Hur Hur Hurrrr good one

Thread Jack:::: OutToWinPahc, your sig- "ceramic" is spelled wrong. Just letting ya know.

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sr20power
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Car: S14 Zenki

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thrasherx89 wrote:1. i have the sides of the harness for the lap secured to the stock seat belt harness by a 800lb hook (like used for rock climbing) and i weigh 150 so thats good enough to handle 5.3 g's which i think is good enough but...should i upgrade to 1000lb just to be safe or is it good enough?

2. the shoulder straps i have in that lame mounting point under the rear seat mounts, and i hate it. now i hear that mounting to the c pillar bar is unsafe, but isnt that where the rear shoulder strap is mounted so im wondering why it isnt safe?

3. i was also considering mounting to the rear strut tower brace...i would put those climbing hooks on the bar (x4) and have the rear seat down and if i needed passenger i would just have the same hooks on the bottom of my seat mounts in case...one option

4. i was considering fabing something to mount similar to a harness bar but is less intrusive on rear passengers as i might have some sometimes. i was considering making a bar that mounts to where the stock front shoulder seat belt motor goes as i removed mine...and maybe having another support bar? problem would be foot clearance for the rear passengers so i would have to look into that a little more

5. other options???

thanks
1. I don't know, since I don't know the actual rating on my sparco belts.

2. Look at the angle of the belt if your mount your belt there. It will be stretched across and where are you going to secure your right shoulder belt?

3. I would still not trust my life mounting my belts on the strut bar, unless you modify the mounts of the strut bar.

4. Do you plan to use the 4 point harness ALL the time? Or just at the track?

5. Just get a harness bar. I can't speak from experience but it doesn't seem very hard to install or to un-install it WHEN you have passengers in the back. But since you might have passenger sometimes your logic behind 1, 2, and 3 don't make sense. So HARNESS BAR....plain and simple.
Modified by sr20power at 8:38 PM 10/11/2009

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thrasherx89
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1. well i figured that 5.3 g's is alot of force in general so i feel they are somewhat safe

2. the angle seems to be between 15 to 30 degrees from the sholders but i was going to mount them to the c pillar bar itself i have read that between 5 degrees below sholders to 30 degrees above zero is safe, and if i follow the line from the stock point back to the c pillar it apears to follow a similar angle

3. yeah i was asking to determin how string that bar is and if it would be safe to mount there. modify how? and the only consern that i have for that mounting point is the two small bolts at the strut tower as opposed to a larger bolt

4. yes i plan on using it all the time

5. i was going to install those climbing hooks so it would be easily detachable from the mouting points in the back and moved back to my current locations allowing for passengers

i feel that my mouting of the lap belt is safe due to the point it being on the stock mounts and secured very well to the chasis at 3 points

the sholders howerever i am worried about the mounting angle. passengers are rare but it does happen so id like to be able to mount them safely for as much as i can and still be able to carry passengers

the stock set up now that i look at fully out of the car, the sholder aspect does not seem very safe at all...

eventually a harness bar will be purchased im sure but im lookin for a safer alternative for the moment.

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sr20power
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thrasherx89 wrote:eventually a harness bar will be purchased im sure but im lookin for a safer alternative for the moment.
A safer alternative...? Or do you mean cheaper alternative? Nothing is going to be safer than a harness bar is going to be a roll bar w/ a harness bar.

Do some searching on why you need to have proper mounts for 4 point belts. I would not risk my life in daily driving wearing a 4 point if its not mounted properly. You maybe a good driver but your not the only one on the road. s*** happens....just my 2 cents.

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thrasherx89
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yeah for sure, i might pull them out this weekend or something then cause even though im short, im not that short where it wouldnt compress my spin if worst comes to worse

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sr20power
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Do as you please. I don't risk my life by chance. All I can do is inform you.

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thrasherx89
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Joined: Thu Jan 10, 2008 8:34 pm
Car: 90 hatch (91 dohc, tein, z32, ss, injen, energy, b &m)

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i was looking into my unsafe harness situation and i see a few flaws with my current set up as pertains to my shoulder straps (im going to add an additional hook for 1600lb or 10.6gs worth, which would kill me of g force long before the mounts fail)

i was thinking about where to mount them correctly and i had considered mounting for the moment to the stock rear lap belt points in the center and the side

will look like this:



and using and picking up some hardware so that the straps are mounted correctly as currently they are mounted incorrectly as shown here



this is apparently a sparco diagram:



also read: " FIA rules reads the harness must be mounted between 45 and 90degrees to the driver's shoulder/seatback"

this set up that i am considering mounts to the stock oe tested mounts for the seats and are mounted at least at a substantially better angle than currently making spinal compression less of an issue and since they are on the stock oe tested points they should hold just fine

please everybody dont take me for somebody who dosnt have safety in mind, i know my set up is unsafe and im trying to correct it, cant diss me for that

p.s. i got all that info on a honda forum...weak

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baron_harkkonen
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