4 Point harness mounting locations for stock seat - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

raytrix · 01-22-2014, 11:01 PM

This looks kind of unsafe but I guess this is the quick and easy way that Japanese people do it. I would use this more for cosmetic purposes than actually use this setup on the road. Great for shows.

http://minkara.carview.co.jp/en/user...1214/note.aspx

continuecrushing · 01-22-2014, 11:33 PM

Parked and/or show use is one thing, but don't use those while on the road as that is probably the most dangerous 4pt setup you can run

mav1178 · 01-22-2014, 11:40 PM

I'm sorry.... how is this a DIY?

No sane person would do something like this.

-alex

1stGenBRZ86 · 01-23-2014, 12:14 AM

harnesses should NEVER be mounted like that.

CoupedUpSubie · 01-23-2014, 08:55 AM

How is that unsafe? I got a bunch of parts for my rallyx car and a harness just like this was with it all. All that is needed is the points for the clips to go into. This is how I was instructed it was meant to be installed. Think about it, the bolts holding the shoulder straps are designed to hold you back in an accident already. Also the ones under the rails are in a spot just as strong.

Probably just an auto-x car although these seats don't really need it as they hold you better then any other seat I have sat in.

mad_sb · 01-23-2014, 10:12 AM

Quote:

Originally Posted by CoupedUpSubie

How is that unsafe? I got a bunch of parts for my rallyx car and a harness just like this was with it all. All that is needed is the points for the clips to go into. This is how I was instructed it was meant to be installed. Think about it, the bolts holding the shoulder straps are designed to hold you back in an accident already. Also the ones under the rails are in a spot just as strong.

Probably just an auto-x car although these seats don't really need it as they hold you better then any other seat I have sat in.

Read the manufacturers install instructions, that will explain whats wrong. For starters the angle to the shoulder belts is far to steep. For another the lap belts should be mounted where the oem lap bet mounts.

ScorpionOzzy · 01-23-2014, 12:04 PM

Quote:

Originally Posted by CoupedUpSubie

How is that unsafe? I got a bunch of parts for my rallyx car and a harness just like this was with it all. All that is needed is the points for the clips to go into. This is how I was instructed it was meant to be installed. Think about it, the bolts holding the shoulder straps are designed to hold you back in an accident already. Also the ones under the rails are in a spot just as strong.

Probably just an auto-x car although these seats don't really need it as they hold you better then any other seat I have sat in.

a shoulder harness should always be mounted directly behind you, never to the floor. When you crash, those harnesses are just going to compress your back, rather than just hold your body in the seat.

A simple harness bar would do the job just fine

F1point4 · 01-23-2014, 12:11 PM

That setup is unsafe. I talked to reps at Schroth and Takeda and both of them said the car's geometry is not fit to mount shoulder belts to the rear seatbelt points so they will not be making quick fit style harnesses for our cars. They strongly urge wrapping harnesses around rollcages are properly made harness bars.

The lap belt should pointed outward, and the outside lapbelt should really be mounted to where the factory seatbelt is located.

I second everyone who says its really important to pay attention to manufacturers recommendations regarding harness angles, etc.

DR 86 · 01-23-2014, 12:33 PM

Quote:

Originally Posted by CoupedUpSubie

How is that unsafe? I got a bunch of parts for my rallyx car and a harness just like this was with it all. All that is needed is the points for the clips to go into. This is how I was instructed it was meant to be installed. Think about it, the bolts holding the shoulder straps are designed to hold you back in an accident already. Also the ones under the rails are in a spot just as strong.

Probably just an auto-x car although these seats don't really need it as they hold you better then any other seat I have sat in.

Dumbest thing I've read all year.

Anthonytpt · 01-23-2014, 12:42 PM

This DIY should come with a eulogy.

CoupedUpSubie · 01-23-2014, 12:53 PM

Quote:

Originally Posted by DR 86

Dumbest thing I've read all year.

I asked a question and made a few points of what I saw. I was looking for an informed response.

mav1178 · 01-23-2014, 01:16 PM

Quote:

Originally Posted by CoupedUpSubie

How is that unsafe? I got a bunch of parts for my rallyx car and a harness just like this was with it all. All that is needed is the points for the clips to go into. This is how I was instructed it was meant to be installed. Think about it, the bolts holding the shoulder straps are designed to hold you back in an accident already. Also the ones under the rails are in a spot just as strong.

Probably just an auto-x car although these seats don't really need it as they hold you better then any other seat I have sat in.

A simple Google search tells you:
https://www.google.com/search?q=race...w=1280&bih=939

The reason why they only provide you with the harness is, much like purchasing a set of wheels, there's no way for the manufacturer to know what type of vehicle it is going in to.

As others have covered (but not explained), harness mounting requires you to have the proper angles to prevent compression. You need to be secured, but also protected in case of a bad wreck. That's why harness bars always end up really close to your shoulder level.

Furthermore, while it is possible to use a racing seat with stock seat belts, using a harness with stock seats isn't ideal and can be dangerous. From the original picture, the harness passes between the posts for the headrest... now imagine your neck there. In an accident where the harness compresses, imagine your neck pinched in that tight location.

The shoulder harness should go OVER your shoulders, not choking your neck. Even if the harness was mounted properly, the location of the belts isn't idea for comfort or safety reasons.

But... the biggest red flag is, WHY THE HELL IS THERE A CAR SEAT IN THE FRONT SEAT?

Just because they're in Japan doesn't make them geniuses. Plenty of idiots over there too.

-alex

CoupedUpSubie · 01-23-2014, 01:31 PM

Quote:

Originally Posted by mav1178

The shoulder harness should go OVER your shoulders, not choking your neck. Even if the harness was mounted properly, the location of the belts isn't idea for comfort or safety reasons.
-alex

Thank you.

I saw that part and did think of that scenario. The harness I have won't be going in my BRZ but my impreza which seems like it is a bit better setup for a harness. Now just to get a racing seat.

DR 86 · 01-23-2014, 03:27 PM

Quote:

Originally Posted by CoupedUpSubie

I asked a question and made a few points of what I saw. I was looking for an informed response.

I have a question for you: what kind of harness do you have, and what is 1.8L of furry?

01-22-2014, 11:01 PM	#1
raytrix Senior Member Join Date: Aug 2013 Drives: Series 10 FR-S Location: Chicago Posts: 480 Thanks: 234 Thanked 380 Times in 151 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	4 Point harness mounting locations for stock seat This looks kind of unsafe but I guess this is the quick and easy way that Japanese people do it. I would use this more for cosmetic purposes than actually use this setup on the road. Great for shows. http://minkara.carview.co.jp/en/user...1214/note.aspx

01-23-2014, 08:55 AM	#5
CoupedUpSubie Senior Member Join Date: Nov 2013 Drives: 2013 BRZ Limited Location: United States Posts: 299 Thanks: 11 Thanked 118 Times in 91 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	How is that unsafe? I got a bunch of parts for my rallyx car and a harness just like this was with it all. All that is needed is the points for the clips to go into. This is how I was instructed it was meant to be installed. Think about it, the bolts holding the shoulder straps are designed to hold you back in an accident already. Also the ones under the rails are in a spot just as strong. Probably just an auto-x car although these seats don't really need it as they hold you better then any other seat I have sat in. __________________ 2013 BRZ Limited 6MT 2014 Ram 1500 Quad Cab Black Ram - 8 speed with 3.21 gears 1994 Honda VFR750 - Two brothers 4-1 left side exit exhaust 1993 Honda CB750 Nighthawk

01-23-2014, 12:11 PM	#8
F1point4 Photo Specialist Join Date: Feb 2012 Drives: 2013 Toyota 86 DGM 6MT Location: Texas Posts: 1,152 Thanks: 587 Thanked 1,804 Times in 420 Posts Mentioned: 94 Post(s) Tagged: 0 Thread(s)	That setup is unsafe. I talked to reps at Schroth and Takeda and both of them said the car's geometry is not fit to mount shoulder belts to the rear seatbelt points so they will not be making quick fit style harnesses for our cars. They strongly urge wrapping harnesses around rollcages are properly made harness bars. The lap belt should pointed outward, and the outside lapbelt should really be mounted to where the factory seatbelt is located. I second everyone who says its really important to pay attention to manufacturers recommendations regarding harness angles, etc. __________________ Lola - Toyota 86 6MT Dark Gray Metallic My 86 Flickr Set

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01-22-2014, 11:33 PM	#2
continuecrushing Join Date: Mar 2013 Drives: 2013 Firestorm FRS Location: Lake Elsinore, CA Posts: 2,707 Thanks: 1,231 Thanked 2,144 Times in 1,003 Posts Mentioned: 73 Post(s) Tagged: 2 Thread(s)	Parked and/or show use is one thing, but don't use those while on the road as that is probably the most dangerous 4pt setup you can run

01-22-2014, 11:40 PM	#3
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,099 Times in 3,030 Posts Mentioned: 95 Post(s) Tagged: 3 Thread(s)	I'm sorry.... how is this a DIY? No sane person would do something like this. -alex

01-23-2014, 12:14 AM	#4
1stGenBRZ86 Senior Member Join Date: May 2013 Drives: 2013 BRZ Location: NYC Posts: 207 Thanks: 110 Thanked 58 Times in 35 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	harnesses should *NEVER* be mounted like that.

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