Harness angle

[MuZiZZle]

Hi guys, I was wondering if anyone could help, my cage has harness bars, so it would make sense to use them, but because my seats are so low, the harness bar is higher than the hole in the seat, so the harness is coming down from the bar if that makes sense

Sort of like this MX5, I have a safety devices cage in a saxo.



now the FIA ruling is 0-45 degree below, so obviously I'm out of their guidelines, but I'm not racing so that doesn't matter.

Is it any real issue for track use though?

I mean I was using an eyelets on the rear seatbelt points, and eyelets on the transmission tunnel and they were beyond the 45 degree

Any ideas?

[Trev450]

How high are your shoulders in relation the cut outs in the seat? If they are higher then it should be fine. If they are lower then the harness will be pulling downwards on the seat which is definately not recommended as in a heavy frontal impact the back of the seat is likely to break.

[Mr MXT]

Personally, I wouldnt be happy with that regardless of where your shoulders are.

Can you "modify" the cut out on the seat?

[mrmr96]

I think that so long as the harness can run from the bar to your shoulder, without the seat impinging, then you'll be ok.

So the key question is: How high are your shoulders compared with the holes in the rear of the seat? If you shoulders are lower than the holes I can't see a problem. If your shoulders are higher than the holes then you have a big problem.

HTH

[jasongtr]

Mr MXT said:

Personally, I wouldnt be happy with that regardless of where your shoulders are.

this /\

plenty of guides on the net and none will say its ok to have the shoulder straps rising behind the seat

http://www.securon.co.uk/fitting/extras/fiaharness...

what happens in a rollover, there will be more body movement in the seat id of thought.

Still its your car and your body but i wouldn't have it like that, i wouldn't cut the seats about either just move the harness bar on the cage

ill also add just because you are not racing and you dont need to be within FIA guidelines they surely are good things to follow, i know the fia dates on belts and seats can be ignored if they haven't been in an accident but the harness angles should surely be followed for very good reason.

Edited by jasongtr on Thursday 9th October 18:38

[Altrezia]

jasongtr said:

this /\

plenty of guides on the net and none will say its ok to have the shoulder straps rising behind the seat

http://www.securon.co.uk/fitting/extras/fiaharness...

what happens in a rollover, there will be more body movement in the seat id of thought.

Still its your car and your body but i wouldn't have it like that, i wouldn't cut the seats about either just move the harness bar on the cage

ill also add just because you are not racing and you dont need to be within FIA guidelines they surely are good things to follow, i know the fia dates on belts and seats can be ignored if they haven't been in an accident but the harness angles should surely be followed for very good reason.

This bloke speaks sense.

Change it - sorry :/

[andyiley]

jasongtr said:

http://www.securon.co.uk/fitting/extras/fiaharness...

Edited by jasongtr on Thursday 9th October 18:38

I know I am being a pedantic tw@t, but if a manufacturer can't get crotch & crutch right........ WTF!

[jasongtr]

can't say is a read it, just the first one i found of the many that are available