To help people who wanna to change a seat
 

First of all, it is not safest way to do the seat until u combo

1. seat and bracket
2. harness
3.harness bar
4.roll cage
5.hans
6.helmet

as lots of common said.
i am totally agreed

but i have no problem pass the local auto x event as stx class
and local track"not racing just training use as they said "
the only thing i changed is the seat with no side airbag on the side and the stock seat belt working same as before
so u lost side air bag for sure, and people said it also not safe during the roll over"dont understand that part".
anyway, just sharing my experience for buying a seat.
and help people can study some thing from my mistake.

Hi all

over a past month for change the seat that wut i got


1.test fit
if u know someone already had the seat installed in their car, go test it out for the fitment. this is the most easiest way to find out ur size
and planning ahead for the harness if u wanna one, cause some of the seat come with the hole right under ur leg and some of them not
the main different which is 4 points harness or 6 points harness.
the seat with hole is for 6 pints harness, with out is for 4 points.
i recommend pick a seat with hole so u can easily change it.

2.pick a seat
u need measure ur waist and upper body for buying the right seat for u, i did my by test seat whatever the seat i can find, then i ask the owner which brand is the seat and which series is belong to, also the size for the seat. after that, i was searching the size on the internet for the seat i was testing. u should have a pretty good idea on the size for ur need by know at end
for example u should find something like this and pay attention on those number i had circled. that is the most important number for fit ur body, car, and bracket!!



Attachment 180627


Attachment 180628


Attachment 180630


Attachment 180629

3.find a bracket

once u narrow down the seat u wanna buy, u should looking for the bracket now, this is the most important part over all the process.
a good bracket should let u seat as low as the floor, and center with the steering wheel.


Attachment 180626


keep ur eyes on that number, this is how u know if the bracket will fit ur seat or not.


for the bride seat, they don't give u that number for any reason
buy i found when u go to their home page and select the seat u wanna, then the next task is for pick a bride bracket where they will told u which one will fit ur seat and ur car. very helpful info
http://bride-jp.com/en/seat/


Attachment 180631


Attachment 180632


Attachment 180633


Attachment 180634


Attachment 180635


now u should had a good idea on the bracket size



4.harness
the harness is the most important thing for ur safety

there r a lot of rules, some of them asking that angle. some of them r not.
i am not respond for any safely issues



Attachment 180636


first of all, get ur angle right. follow the local track requirement.
and either buy a harness bar or mounting the harness on the chassis

i keep my stock seat blot and not really using the my 6 points harness
so i end up just using the hock on the top of the rear seat where there is a baby seat safety hock


Attachment 180637


the one in the mid had hock behind the rear seat from factory too
anyway
angle is one thing

harness bar is another
and hans is the important too


Attachment 180638


if u really get all them working right

here is my tho just give u a idea


Attachment 177792


for the side part of the harness,
i drill a hole at transmission panel and get the the hock blot installed on the right side
and take that factory seat blot cover at bottom, u will find there is the hock for factory seat belt, and i just hocked it in there.


Attachment 180639



the most difficult part is the lap part.
their is brake line and chassis structure right under the point for my drill point.


Attachment 180641


Attachment 180642


Attachment 177786


Attachment 177787


Attachment 177788


i guess it is cause they design it for left hand drive maybe
i end up with the cusco seat brace.



Attachment 180640


it fit perfect, but it may off the angle a bit, just a bit.


by the way, the stock seat belt should run thought the left side hole on the seat, my seat just fit me perfect or a bit tight. when i seat in the car, the stock seat belt fit me perfect like before.


here is the stock seat belt bracket


Attachment 180643


Attachment 180644


6.buy a resister

which is 3.3ohm u can get it in any electric store and tap for warp the resister


Attachment 180645


the drive side is very easy, nothing but the resister and take out the wires from factory seat

the passage side is not,
u need take all the above and also a pad between the stock seat and bracket, that is for trigger the air bag for passage side.
then u put it under ur bucket seat fiber pad.



http://www.ft86club.com/forums/showp...&postcount=448


here is the link who is explaining better than i for sure





7.need a zip tie
for clean up the harness and the wires under the seat


8.hardware
a lot of things come with the seat and the bracket in the package


a)but u still need 4 spacers to security the factory bolt for the chassis



Attachment 180655

b)1or3 large space for install the harness, this is goes under the car so pick something that not going to rust out. and apply some permit coating after u tight them up.

Attachment 180656


all in all

hope this is going to help, i study that in the hard way
bought one sparco ergo and sparco bracket and seat rail, which i find out it just too high, even higher than stock seat. i don't recommend it at all
so i bough another nagisa bracket which i really love it, but it was not fit my seat, just a 5 mm.
so i sold the sparco seat and went buy the bride zeta iii type L
compare those two seat, the bride has a better quality for sure
much better!!!!


i am 183 cm 42 waist with 90kg
my seat is bride zeta iii type -L
harness is sparco 6 point
bracket is nagisa double locked seat rail

Attachment 177789


Attachment 177790


Attachment 177791


Attachment 177792

Wut the F dud u sey?

Reading the first couple steps makes my head hurt


Sent from my SM-G950U using Tapatalk

are harnesses street legal in canada? If I was ever to get a bucket seat, I'd wanna use the stock seat belt.

Also follow the harness mounting instructions. The shoulder harness rear mount point doesn’t look right to me. Is that per the instructions? Angle appears too high.

Plus, harness without a half cage is generally considered unsafe... definitely less safe than using OEM 3 point belts.

A fixed seat and a 6 point works well without a cage, until you crush your head, a 4 point works well till you submarine and find yourself in the foot well.

Yeap, some good advice on fixing a seat.

sry for my bad english skills
i will do it more carefully
everything is good now
bride zeta iii type L

nagisa double locked bracket
spraco 6 points harness
cusco seat brace
here is the over all for my mods and some pic on the set up
https://www.ft86club.com/forums/showthread.php?t=136068

sry for the bad english, i did my best this time. was working on the car for a bit last month

ok just be nice for a guy who is not native speaker maybe

i did my best this time hope it will help .:thumbup:

yep keep the stock seat belt for sure

yea, safety first. did it again to current my language

hope it will help others

:clap:thats why u need hans and helmet and a 6 points harness

And roll cage

right right right.

a racing car required :cheers:

Please do not use a harness and bucket in a street car. You are compromising the safety systems designed to keep you safe.

Please do not use a harness and bucket on track without at least a half cage with harness bar. This method of using harness is for show cars only, and is NOT SAFE.

if i add a harness bar. is it will be safe enough?

Nope.

any link for install the seat safely ?

The problem is not the install of the seat.

Your OEM seat is designed so that it can collapse in a roll over that crushes the roof. A racing seat will be not and you will be crushed without a roll cage.

so, its need a roll cage then.

Half cage with a harness bar min as CSG Mike said.

thx for the help, slowly getting there!:thumbup:

For a street car, you only really want a half cage, with a full cage ingress and egress is a PITA (a full cage without side intrusion is stupid), plus without a helmet your head will open up like a smashed water melon if it comes into contact with the bar (window bar or front leg), seat design can negate this to a point, but visibility can be lost , harness bar is a given.

For a street car there is always compromises, BUT, never on safety.

Weld in is best, bolt in is adequate.

Good installation is paramount, welds, bracing, plating, bolts, if any of these points fail, the roll bar might not give any protection, or kill you even in a minor crash.

Seat mounting, same same, mounting points and seat angle.

Harnesses, if you are doing it, do it right, get a 6 point, your balls will thank you, mounting points, correct fixture position, both angles and points.

No point adding safely devices that are installed incorrectly, making them worse than OEM in a crash.

My 2 cents, go to a joint that preps race cars, NOT, your local tuner, or mate with a drill and welder.

Cool story (bro): when I was young and dumb I put in a 4 point, it worked OK, till I hit a barrier, then I basically ended up mostly in the foot well, turned out my seat angle was wrong (not enough angle) and the 4 point was actually the reason I turned into a submarine.

Be safe, have fun.

If you are at all wondering why the installation is so important (and often unsatisfactory for bolt-ins) look at this picture closely (unless you're squeemish)

http://i35.tinypic.com/2ppneae.jpg

This was a bolt in cage that did not have proper reinforcement/bracing at the mounting locations. Notice that the cage just blew right through the floor pan and that there is no 'roof' anymore. Miraculously I believe that both the driver and passenger survived this crash uninjured but don't expect the same fate awaits everyone experiencing this failure.

EDIT: can't seem to figure out why the image is only visible half the times I load the page...

so for the stx in autox and 4 trackday in a year
i may just need harness bar and a good hans right?
in my opinion, the only thing i changed is side airbag, and 6 points harness(only use it on track maybe)
it should be just safe as factory right?
did nothing but a seat, and stock seat belt is working just as before:(

by the way any link for build a half cage ?

https://www.google.com/search?q=roll...obile&ie=UTF-8

I used a Bond bolt in half cage in my Skyline and a MX5 Plus bolt in in my, um, MX5

If you need a link to build one, you probably should not try to build yourself. Find a local fabrication shop and build something.

just trying find out some quick idea for what i need.

I got this and had the guy that built my brothers drag car cage put it in for me. But it seems that they aren't selling the 86 version anymore at Evasive, or I can't find it...

It took 4 months from ordering it to having everything in the car done.

https://www.evasivemotorsports.com/s...hoCTpAQAvD_BwE

i know that one , that the one i am going to order in the future.
but for now, i think i dont need it.
still have my stock seat belt.

I know there were many comments on the autopower bar not being "legal" for most groups rules for roll bars. Maybe they quit making it?

I know my local shop charges less to make and install a custom bar than it would cost to buy/ship weld in the autopower bars.

We definitely had to hack it up and just used it as a starting point to get what I needed. It cost me about $1050 for the cage, shipping and to get it installed. If I had to start over, I would just make something from scratch.

My local shop treats people really good for fab on safety stuff. Plus, if I want to do stuff like make the base plates and help with that kind of stuff, I can do so. So its pretty awesome.

Just not ready to take that dive yes since I do so much auto-x still and my cars already on the heavy side of STX

the half cage weighed about ~60lbs, which is not as bad as I was anticipating.

it is the same thing i concern
anyway, it is still my daily.
i had went to one of the local shop

they said it is going to be more expensive for them to build a cage

i passed all the autox and my local track
once i am going to more serious event, i will know how i should do it at that time.
:thumbsup:

Stock Seat, Belt, etc is the safest way to go until you have all the safety stuff in a combo.

Im already a 100lbs or so heavier than a FRS with the brz limited. So, have to shave the weight somewhere!

Question:

Are the Sparco seats designed for the "street" then to be considered unsafe?

https://www.sparcousa.com/vehicle-seats-street

Only the fixed buckets.

Also
"Designed" for the streets doesn't necessarily mean intended for a stock vehicle with no roll over protection.