Forums/Z31P/z31-performance-upgrade-forums suspension-chassis-and-brakes/Harness bars…
Imported from Z31Performance.com Forums{{#if:Racinjitter| — original post by Racinjitter}}{{#if:2013-01-22 05:05:07|, posted 2013-01-22 05:05:07}}{{#if:24| · 24 post{{#ifeq:24|1||s}}}}{{#if:/Z31performance_archive/forum/z31-performance-upgrade-forums/suspension-chassis-and-brakes/20454-harness-bars.html|
Local archive: view archived thread on dev.z31library.com}}
Racinjitter: (2013-01-22 05:05:07)
Well guys, I have started making harness bars in the past few weeks. Josh has the first one installed into his car as a test piece. I have changed a few things that he complained about (mounting holes need to have more clearance) and make the bar less of a press fit. I am nearing completion for my personal harness bar, with his recommendations.
Bars are fully tig welded with SA-80 filler rod. The bar itself is .120 wall DOM tubing. Josh's shipped weighed less than 20 lbs. I can make more, but they are per order and take about a week.
You will have to remove the stock seat belts in order to install these. So aftermarket harnesses are required. I can get RJS's harnesses at a discount, in any color.
Pics
Here is my personal one.
Josh has pictures of his bar installed on his FB, but I'll let him post up if he would like.
bleakdragonmage: (2013-01-22 05:26:50)
Whats the price looking like?
Racinjitter: (2013-01-22 05:34:14)
For a simple bar like Josh's, its looking like $175 plus shipping. His shipping was only $45, from Michigan to Tennessee. One like mine is much more complicated, and requires a lot more work. Once I finish it, I can get pricing together. Shipping for my style will be a lot more expensive also.
Careless: (2013-01-22 06:47:14)
nice unit and price. i'll be having a front engine clip cut up that looks similar to the sectional pieces you have for mockups. lulz. cool beans.
Racinjitter: (2013-01-22 07:03:24)
Like this???
- TEST EDIT*
adamvann3: (2013-01-22 18:39:58)
The bars looks excellent Jason! Great weld quality as well. All those roll cages and practice are paying off.
I would be rocking one if I didnt install a 4pt last summer. RIP RBZ31, pieces of the car are still being put to good use though, I can ensure that.
300zxturboftw: (2013-01-22 19:05:44)
Looks nice Jason. A couple questions:
1. It looks like these bolt in to the stock seat belt mounting bolts, correct?
2. For the supporting piece towards the trans tunnel, is that welded on or will it be a bolt on piece as well?
3. Will this work with completely stock interior or do we have to gut things out?
I need one for next season and would prefer not to install a full cage and have something I can remove if needed.
adamvann3: (2013-01-22 19:13:47)
Let me help him out
1.) Yes
2.) He hasnt finished "his" yet but he is looking or could weld a plate to bolt to the tunnel with a backing sandwich plate. He was discussing this via FB i believe.
3.) From my past experience you are going to need to trim the B-pillar cover. You will most likely need to slot a hole for the bar to come out of. I have a decent amount of experience hacking, trimming and finishing int pieces and can help you/guide you through it to make it look pretty OEM'ish when done. Since the rear storage compartment swings rearward, depending on how close the drop bars are you may still retain functionality, however access will be a bitch.
300zxturboftw: (2013-01-22 19:31:49)
I don't use the rear storage compartment so that's not a problem. I'm not to worried about cutting into the B pillar as well to make it look stock-ish. My only concern is it removeable. Last thing I want in my Z is something welded in place cage wise, but I also don't want to die if something goes wrong and my harness is not properly angled.
Racinjitter: (2013-01-23 01:01:42)
I can make the down tubes to the tunnel differently if you want more functionality of the rear cargo area. Adam hit everything on the head. Mine will be welded, but I can easily make a sandwich plate to install into the tunnel. If you want something one off and completely custom, bring it on up here and we'll knock it out in a weekend.
I plan on finishing mine sometime this week. Working a few days in the morning.
300zxturboftw: (2013-01-23 04:30:50)
Why are you on the whole other side of Michigan! 330 miles isn't that bad actually. Hopefully I get my ass in gear soon on my car so I can have it together for tune in spring. Seats/Harnesses are on the list…
DeleriousZ: (2013-01-23 06:23:29)
Hey Jason, are you willing to provide the finished kit non-welded to save on shipping? Smaller heavy boxes are significantly cheaper than large heavy boxes for the likes of me :P
Racinjitter: (2013-01-24 07:34:21)
If you would like, I can ship it in pieces. The crossbar is about 55"wide and 6" deep. 1.5" DOM tube. If you can think of a design you want, just make a drawing and I'll do my best.
quicksilverz31: (2013-09-05 12:51:05)
Oh yeah, I was supposed to put pictures up of my bar installed.
From the rear:
Driver's side front:
KevinA: (2013-09-05 13:45:20)
Would this fit a 2+2, or just a 2 seater?
adamvann3: (2013-09-05 14:49:44)
This would work on a 2+2 as well. Just connects to the B-pillar, but it would make you back seats impossible to access. Not that they are much use to begin with.
frostvectron: (2013-09-05 16:40:37)
Which Corbeau seat is that? Looks a lot taller than I would have thought!
quicksilverz31: (2013-09-05 18:22:32)
Unfortunately with the harnesses I already had prior to the harness bar my only option was to wrap them to take up the extra length and bolt them to the bar.
quicksilverz31: (2013-09-05 18:25:19)
And the seat is a Corbeau FX1 pro. It's taller than I like too, but it works.
adamvann3: (2013-09-05 19:07:49)
Thats the incorrect way to wrap them to take the extra length. You can risk them slipping creating slack and bad things happen. They need to be securely mounted directly to the bar, then the extra length can be coiled or wrapped (not prior to connection).
You either need to wrap them around the bar with a secure connection with the slide bar, or bolt them to your mounts/secure with the slide bar.
Note my harness have about 4ft of extra length I dont use. They are securely fastened within the 0-15 degrees from my shoulders (spinal compression), less than 18" away (belt stretch).
I used to have it connected to my strut bar (ghetto and dangerous I know). I was amazed on how much the belts could stretch with that much slack. Even secured and strapped down the harness would stretch not holding me tight when braking hard. I was amazed how much better they worked when attached within a short distance to the 4pt roll bar.
quicksilverz31: (2013-09-05 21:03:11)
I too used to have mine attached to the strut tower brace, and how I have it now is much better. If you wouldn't mind, PM me so I can get a little more detail on how you did yours/how I can improve mine. I agree how mine are now isn't ideal, but I think they're secure enough to get the job done with no issue other than how it looks for the most part.
quicksilverz31: (2013-09-05 22:19:59)
Well, unlike many Z31p'ers I decided not to sit and argue and try to justify keeping my setup the way it is since it's not proper. I took what you said to mind and ordered schroth racing LV10 slides and B64 brackets to remount it to the bar and adjust the lap belt lengths more precisely. Should be able to un-stitch my current bolt in ends and make it work pretty easily.
adamvann3: (2013-09-06 18:28:19)
Bingo, those are the correct and safe ways too attach. While your setup is probably fine, it is fairly inexpensive and easy to make it correct and safe.
I used the Schroth install instructions when putting in by belts: http://www.schroth.com/installation-…stallation.htm
quicksilverz31: (2013-09-06 19:39:17)
I planned on using the schroth method of fastening too, I watched their tutorial video on Youtube. Makes it super easy to see how they work. I'll be looping in the B64 brackets to retain the bolt in function of my harness bar, and I'll loop in the original bolt in brackets for the lap belts. I'm just glad I'll finally be able to fine tune the lengths to fit me even better. Normal harnesses are not suited to people of my size lol.