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4 point 3 point harness install

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Old Sep 15, 2003 | 10:49 PM
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Rich Hoe
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4 point 3 point harness install

ANyone have any pics or info on there 3 point or four point installation on there FD? Did you connect to teh rear strut tower brace?
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Old Sep 16, 2003 | 01:38 AM
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i connected to the rear strut tower. the side buckles are mounted to the stock seatbelt locations on each side of the seat. i will post pics if i find my camera. its really easy.
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Old Sep 16, 2003 | 08:43 AM
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Rich Hoe
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Stock rear strut tower bar

You mounted to the stock rear strut tower bar? Is that thing stronger enough to hold you inplace if you do get into an accident?
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Old Sep 16, 2003 | 08:44 AM
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i went to the rear strut tower bar as well. but i have a harness bar and not the stock bar. i bought mine from chuck at rotaryextreme.com
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Old Sep 16, 2003 | 07:46 PM
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i think the stock would be strong enough. those bolts are pretty solid. If you are really nervous, then i would buy a different bar, or drill your own hole in the back somewhere.
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Old Sep 16, 2003 | 08:01 PM
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Rich Hoe
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Bolts

The bolts are only 14mm that isn't very big. I would think that 17mm would be at the bare minimum safe. I will try and design my own.
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Old Sep 16, 2003 | 08:18 PM
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From: Dove le cose sono fatte il vecchio moda il senso
I ordered a set of Sparco 4-Points last week. I was thinking of drilling a few holes into the stock rear strut bar to bolt the back Sparco straps into it. Should be safe be enough.
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Old Sep 16, 2003 | 09:09 PM
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Rich Hoe
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Stock

The stock rear strut bar isn't very big to be drilling into it. If anything you should try and weld up a piece of angle iron and then attached the harness to the angle iron. This wood make it a little beefier.
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Old Sep 16, 2003 | 09:11 PM
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http://www.m2performance.com/safety.htm
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Old Sep 16, 2003 | 09:40 PM
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although the 14's are small, the are extremely solid and huge threaded. normally i wouldnt do it, but i think they are pretty safe. they are not much bigger than your stock seatbelt bolts.
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Old Sep 16, 2003 | 09:44 PM
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From: Dove le cose sono fatte il vecchio moda il senso
Thanks guys. Looks like I'll have to either buy an aftermarket bar or better yet,.... bolt the back straps to the floor behind the seats.

Didn't really like the idea that the back straps could be seen through the rear window bolted to the R/S/B.
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Old Sep 16, 2003 | 09:54 PM
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Use rotary extreme harness bar - M2 is ****
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Old Sep 16, 2003 | 10:00 PM
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From: Dove le cose sono fatte il vecchio moda il senso
Actually, that looks pretty awesome. What don't you like about the M2 R/S/B.??
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Old Sep 17, 2003 | 09:57 AM
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some guys have had fitment issues with m2's bar. rotaryextremes bar is really a solid piece.. def worth the money
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Old Sep 17, 2003 | 10:16 AM
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THE STOCK REAR STRUT BAR IS NOT FOR MOUNTING HARNESSES TO

A harness must be mounted to something solid. A 3 point harness may be mounted to the chassis at the left shock tower itself (NOT AROUND THE STRUT BAR), but a 4 point needs some sort of harness bar (such as the M2) or cage to fasten the shoulder belts to.

The stock rear strut bar has very flimsy attachement to the chassis and the bar itself is only a small tube of steel. Most of the "bulk" you see is plastic padding. There is no way in hell that a shoulder harness wrapped around the stock bar is going to save you; the entire stock bar assembly will simply bend and let you slide forward.

If you want belts so you can be "cool" do whatever you want. If you want belts to save your butt whenever everything goes wrong, you do it the right way.
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Old Sep 17, 2003 | 10:17 AM
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Originally posted by areXseven
I was thinking of drilling a few holes into the stock rear strut bar to bolt the back Sparco straps into it. Should be safe be enough.
NO IT WILL NOT!
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Old Sep 17, 2003 | 10:21 AM
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Originally posted by areXseven
Thanks guys. Looks like I'll have to either buy an aftermarket bar or better yet,.... bolt the back straps to the floor behind the seats.
The best solution is a harness bar or roll cage with a bar to mount the belts to. The reason this is better than using the trunk floor is the angle of the shoulder belts. A harness bar (or cage) leaves the shoulder straps nearly horizontal after they pass over your shoulders. Anchoring the belts to the trunk floor leaves the shoulder belts angling downward behind you. This means that in a collision when the shoulder belts are under strain that the belts are trying to compress your spine. Not a good idea.

I know everyone can find hundreds of pics of belts installed other ways. That does not make it right or safe. This is common knowledge from the harness manufacturers themselves.
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Old Sep 17, 2003 | 11:00 AM
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Yeah, the stock strut bar is just a rod surrounded by rubbery foam - not anything you want to trust your life to.
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Old Sep 17, 2003 | 12:56 PM
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Rich Hoe
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Safe

Aren't you guys glad i posted this up. Mounting to the stock strut bar is suicide if you do get into an accident. Buck up the money and do it right.
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Old Sep 17, 2003 | 06:14 PM
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ya, i definetly wouldnt "wrap the harness around the bar ever. Its just a flimsy idea.
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Old Sep 17, 2003 | 08:04 PM
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The m2 bar fit just fine for me.

guys damion is right, The stock bar is a flimsey POS. Look at the part that mounts the bar to the bracket. IMO if you got in a hard crash these would rip right off.
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Old Sep 17, 2003 | 09:30 PM
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From: Dove le cose sono fatte il vecchio moda il senso
Cusco makes a nice heavy duty R/S/B for the FD. It is threaded for the bolts that are going to secure the rear harness straps and even comes with the hangers installed for your trunk cover. Think I'm going to have to get that one!!
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Old Sep 18, 2003 | 07:39 AM
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Originally posted by areXseven
Cusco makes a nice heavy duty R/S/B for the FD. It is threaded for the bolts that are going to secure the rear harness straps and even comes with the hangers installed for your trunk cover. Think I'm going to have to get that one!!
That is still not what you want to mount a harness to. The bar itself may seem sturdy to you, but it's endplates where it connects to the chassis are still not up to the task of resisting crash forces.

How much is your life worth? Buy a harness bar.
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Old Sep 18, 2003 | 08:57 AM
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the rotaryextreme harness bar also retains the hangers for your trunk cover
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Old Sep 18, 2003 | 09:30 AM
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From: Dove le cose sono fatte il vecchio moda il senso
Originally posted by DamonB
How much is your life worth? Buy a harness bar.
I thought the Cusco bar I mentioned WAS a "harness bar"??
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