harness mounts

[gavloz]

Hi
What is the best way to mount 4 point harnesses in my sylva striker kit car?

thanks

[Colin 1985]

Can you weld an internal thread to a bar behind the seats and bolt the harness to that?

Like this: -

or


I'm definitely not the best person to speak to when safety is concerned however, does the build manual give you a number of options to choose from?

Edited by Colin 1985 on Friday 12th November 21:30

[Russ Bost]

Well, certainly not as in the pic above - I would be amazed if that passed current IVA, the belt mountings should never be arranged with a bending moment about the mounting point such as is pictured, if subjected to any significant load the whole thing would pivot around the base!! Not a good thing. Also the belt should pass cleanly thro' the seat onto drivers shoulders not use the seat as a further mounting point or tester will require evidence that the seat has adequate strength for that purpose - which a fibreglass shell clearly hasn't.
You would be far better to use flat 6mm plate preferably mounted between the angle of 2 tubes so it is supported on 2 sides -not sure how easily that can be made to work on your cage - alternatively a mounting point/tube thro' one of the existing tubes & seam welded both ends should suffice. HTH

[p1doc]

your kit car manufacturer should be able to help advising strongest and safest place to put harness points
martin

[Russ Bost]

p1doc said:

your kit car manufacturer should be able to help advising strongest and safest place to put harness points
martin

Actually - that begs a question, since when did manufacturers start selling chassis WITHOUT seat belt mounting points already welded in

[Yazza54]

Off the roll bar?

[p1doc]

Russ Bost said:

p1doc said:

your kit car manufacturer should be able to help advising strongest and safest place to put harness points
martin

Actually - that begs a question, since when did manufacturers start selling chassis WITHOUT seat belt mounting points already welded in

very true,they should advise where i presume they have strengthened the grp to allow mounting points
martin

[Colin 1985]

Russ Bost said:

Well, certainly not as in the pic above - I would be amazed if that passed current IVA, the belt mountings should never be arranged with a bending moment about the mounting point such as is pictured...

The second picture is one I fount on the net, but if the mount is strong enough to resist the BM then I don't see why there would be a problem, even if it does look crap.