To help people who wanna to change a seat

[CSG Mike]

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.

[jayliu.jiayu@gamil.com]

Originally Posted by CSG Mike

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?

[CSG Mike]

Originally Posted by jayliu.jiayu@gamil.com

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

Nope.

[jayliu.jiayu@gamil.com]

Originally Posted by CSG Mike

Nope.

any link for install the seat safely ?

[NoHaveMSG]

Originally Posted by jayliu.jiayu@gamil.com

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.

[jayliu.jiayu@gamil.com]

Originally Posted by NoHaveMSG

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.

[NoHaveMSG]

Originally Posted by jayliu.jiayu@gamil.com

so, its need a roll cage then.

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

Originally Posted by CSG Mike View Post
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.

[jayliu.jiayu@gamil.com]

Originally Posted by NoHaveMSG

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

thx for the help, slowly getting there!

[86MLR]

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.

[CrowsFeast]

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)



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...

[jayliu.jiayu@gamil.com]

Originally Posted by 86MLR

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.

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

[jayliu.jiayu@gamil.com]

Originally Posted by 86MLR

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.

by the way any link for build a half cage ?

[86MLR]

Originally Posted by jayliu.jiayu@gamil.com

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

[ka-t_240]

Originally Posted by jayliu.jiayu@gamil.com

by the way any link for build a half cage ?

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