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Old 02-13-2009, 03:47 PM   #1
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Default Harness questions

I have a set of Schroth Rallye Cross harnesses in my sights, and was wondering who here is running a harness in their car, and how they have them mounted. I have stock seats and a double hoop roll bar, and would have a harness bar mounted across the seatbelt towers when the time comes. I can see perfectly how to mount them inboard, but the outer mounting location looks a bit tricky. Not enough room between the seat and the seatbelt adaptor and roll bar itself. I guess it could be mounted directly on the roll bar, but that area is diagonal and a bit too far away from the seat, and looks like it would pull the belt off your shoulder in an accident. How are you guys mounting harnesses? I feel its kind of pointless running roll bars with stock belts, turning the car into a scalping machine if I do roll it.
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Old 02-13-2009, 03:54 PM   #2
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Get some racing seats.
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Old 02-13-2009, 04:12 PM   #3
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Quote:
Originally Posted by SamS View Post
Get some racing seats.
why, won't stock seats work just as well?
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Old 02-13-2009, 04:14 PM   #4
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I'd prefer the shoulder and hipguides for a harness on a raceseat over the stock seat where the harness might not stay in the right place.
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Old 02-13-2009, 04:15 PM   #5
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They have holes for the harnesses to go through instead of going around the side of the seat, plus they're so much nicer for holding you while driving.
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Old 02-13-2009, 04:18 PM   #6
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i have the same harnesses in my car, the shoulder portions are wrapped onto the harness bar and the belt sections are bolted to my seat bracket, though with a harness i'd recommend a seat
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Old 02-13-2009, 04:23 PM   #7
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Well seats arent an option since I just spent $600 on leather to cover them like 2 months ago. I know racing seats are better, but I know people run harnesses and stock seats. Im still not seeing how to mount the outer shoulder sections since you cant really route them to the harness bar without rubbing against the roll bar, belt tower or seat. Very tight area.

This is a daily driver, another reason I dont want race seats. Thats why I like the Rallye Cross harness, it looks more livable for daily driving. No fancy 5 point cam lock **** to deal with, just a single lap belt buckle.
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Old 02-13-2009, 04:24 PM   #8
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and on that note, particularly if you track the car, you want your helmeted head to be below a line running from the top of the windshield frame to the top of the rollbar, i.e. the "broomstick test". That's the main reason people get racing seats, so they can sit lower than stock.
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Old 02-13-2009, 04:27 PM   #9
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Quote:
Originally Posted by supersaiyan93 View Post
and on that note, particularly if you track the car, you want your helmeted head to be below a line running from the top of the windshield frame to the top of the rollbar, i.e. the "broomstick test".
This car probably wont see any track duty, thats what my new Miata project will be focused on. I may take it to some autox every now and then. My unhelmeted head sits about 2''-3'' below the imaginary line, so probably above it slightly with a helmet on. Im 6' and I added about an inch of foam to the seats, so yeah... not great for tracking, but I dont plan on it.
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Old 02-13-2009, 05:16 PM   #10
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I love my stock seats now that they are shaved, the difference is night and day. I will probably be running harnesses without racing seats as well. I remember seeing some info somewhere that the harnesses can be wrapped around the harness bar/roll bar and taken down to the rear seat bolts if the angles permiss.
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Old 02-13-2009, 06:54 PM   #11
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I'm using a Hard Dog Hard Core (Hardtop Version) with Willans 6-points (T-sub, not V...)

I have the shoulder belts mounted to the crossbar on the rollbar, the hip belts attached to the stock seatbelt lower mount points and drilled/installed 8.8 1/4-in eyebolts (with washers and rubber bushings) between the seat rails for mounting the T-subs. - Even with stock seats, I'm not going *anywhere* when belted in...

- L
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Old 02-14-2009, 02:08 AM   #12
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Any of you guys have pictures of the installs? Im still just not seeing a good way to mount the outer shoulder belt. There is a tube from the roll bar right there, but it seems a bit too far to the outside, and angled so that it would slip off your shoulder. Dont the mounting points ideally need to be straight behind and maybe slightly to the center (for stock seats anyway) as to help hold the shoulder belts against the seat and over your shoulders? Wouldnt be an issue if I had the seats with adjustable headrests.
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Old 02-14-2009, 07:00 AM   #13
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You aren't seeing a good way to mount the outer belt because there isn't one. You need to order racing seats if you want to use harnesses. Get a Kirkey or something and just install it when you go to autocrosses.

edit: 4-point harness? Throw it away. A Mini driver was killed last year at Big Willow when he submarined under his 4-points. 4-point harnesses are JUNK.
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Old 02-14-2009, 07:08 AM   #14
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Maybe Im just better off with stock belts then. Im not getting seats and I dont want a 5 (or 6) point harness to daily drive. I'll just have to try and keep it on all 4 wheels.

I may cave in and get seats later down the road and use my existing seats in another car, at which point I will get a set of actual harnesses. But I dont see this car ever becoming much more than a fun daily driver. Ive done too much I would have to undo, or redo to make it a good autocross car. I'll ponder this for a few days.
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Old 02-14-2009, 07:12 AM   #15
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3-point belts are a fantastic blend of practicality and safety. If you want more holding power, get a CG lock.

The only 4-point belt I would recommend is the Schroth ASM, and you won't want to pay for it.
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Old 02-14-2009, 07:32 AM   #16
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EDIT:

Yes, Im now looking hard at the Schroth 3 and 4 point "ASM". Pretty much the same as the Rallye, just with the shoulder belts with 1 mounting location, which would work better with factory seats.

Last edited by NA6C-Guy; 02-14-2009 at 07:56 AM.
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Old 02-14-2009, 07:49 AM   #17
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The stock seat frame deforms in an accident. It's not strong enough to be used with a harness at all, IMO.
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Old 02-14-2009, 08:10 AM   #18
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Well, seat strength in question, I would still feel safer in a roll over accident with some type of harness over the factory restraints.
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Old 02-14-2009, 08:36 AM   #19
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The problem is that perception and reality aren't always the same. If you want to keep your head away from the rollbar, you need to get a larger headrest which requires a racing seat. Stock seats and harnesses just don't mix.
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Old 02-14-2009, 04:37 PM   #20
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Well, honestly though, its likely if Im going to be in an accident that is bad enough to kill me, Im going to be doing something stupid like going too fast on the interstate on my way home from work at 2am with no traffic, and have a blowout or something. So its likely the harness wouldnt help me anyway. If a harness will make me feel more secure like a security blanket, thats good enough for me. I still like my chances with a harness and stock seats over stock belts and stock seats. At least the harness will hold me in the car better and will be less likely to be ejected in a rollover and crushed.
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