Fitting Harnesses to Bucket Seats WITHOUT a cage

[dave_t]

I have a pair of Bride's i will be fitting to the S15 but i want to know if any of you guys have fitted a 4 point harness to a Silvia WITHOUT a Harness Bar on the roll cage. I dont plan on getting a cage anytime soon :down:

 

[S15_SAM]

I use a 3 point harness, and bought a spare rear seat belt male buckle and attached it to my the 3rd point strap. Then I can plug it into my rear seat belt.
It's just beyond the 45' limit so I always use my seatbelt too when on track.

 

[dave_t]

Surely that defeats the object if you use both the OEM seatbelt & the harness Sam lol.

I planned to use just my OEM seatbelts with the Brides, like the NSX-R

But thought if I could utilise a harness safely, I'd upgrade to that.

Something I saw a while back is this setup in an R34 using OEM rear seatbelt mounts and eye bolts and these Takata snap on things.


http://www.speedhunters.com/2013/02/takata-equipped-project-gtrs-new-belts/

Not sure if they are really up to the job

 

[S15_SAM]

My thoughts behind it was,
1)I can remove the harness from the back seatbelt and then still use the rear seats
2) a 3 point holds you so much more tightly when braking hard allowing more control. Compared to standard belt.
3) I only use both belts on a track day for extra protection incase my harness mount fails, or in a crash with harness mounted below the 45 degrees to the seat harness holes, you can submarine under the lap section.

Fia standards for harness require them to be mounted parallel to the upper seat harness holds or maximum of 45. Due to the risk of submarining and back injuries.

Thats why the lower rear seat belt mounts are not the best idea. But it can be done.

 

[Surfing Boris]

Can you nor use the upper rear strut brace that some people have that appears to go across the parcel shelf? Don't know if it would be strong enough but the mounting point would be the ideal height.

 

[MATT BOON]

I've always removed the rear seat belts and fitted eye bolts and clipped the harnesses to them.




Sent from my iPhone using Tapatalk

 

[Surfing Boris]

See my thought was to use the 4 belt taka name harnesses and attach them to the rear seat belt mounts, having already removed the rear and front seat belts. Is this road legal and would therefore pass an MOT?

 

[S15_SAM]

Can you nor use the upper rear strut brace that some people have that appears to go across the parcel shelf? Don't know if it would be strong enough but the mounting point would be the ideal height.

Never do this! The strut bar is not strong enough.

You could get a harness bar welded in between the two rear towers and Lower the seats and attach them. But this needs to be done professionally.

 

[Surfing Boris]

That answers that then!!!

 

[MATT BOON]

Yeah I've had takatas in 4 cars like that and no one cares ha


Sent from my iPhone using Tapatalk