Vixen harness question

[anonymous-user]

Three point harness - the rear mount central behind each seat would be on the 'deck' a bit in front of the fuel tank well in the body. Is this deck area strong enough with an MSA type backing plate - Anyone fitted one in this way?

[Hansoplast]

I was told that the shoulder straps need to run in an wide angle to the shoulder. So not directly behind the seats.
So an crossbar was fitted with the straps fitted to it at nearly shoulder hight.

You may not like it but it works fine. Altering the length of straps is easy because in reach.
Crossbar fitted on top of wheelarch with 2 bolt and backplate in the wheel well.

Hans

[anonymous-user]

Thanks Hans. This is what I'm thinking of - the angle all works OK. I'm interested if anyone has done it this way on a Vixen...

[Matt]

On my Vixen S3 I had a 2" x 1/4" steel bar running under the rear deck. Welded to this at 90 degrees was a plate that was then bolted through the top rear shock absorber mount. The top harness mounts were bolted through this as was the mount for the spare wheel.

Not sure if it was the best angle for harnesses as 'proper mounts' seem to be higher up or further back. I'm also not convinced that in the event of a roll over or similar accident I'd want to be strapped in with a harness without a roll cage.

regards

Matt

[Andrew Gray]

Matt said:

On my Vixen S3 I had a 2" x 1/4" steel bar running under the rear deck. Welded to this at 90 degrees was a plate that was then bolted through the top rear shock absorber mount. The top harness mounts were bolted through this as was the mount for the spare wheel.

Not sure if it was the best angle for harnesses as 'proper mounts' seem to be higher up or further back. I'm also not convinced that in the event of a roll over or similar accident I'd want to be strapped in with a harness without a roll cage.

regards

Matt

I must say i agree with you there Mat hence why i went for Lap belts on the Tuscan.
Andrew

[Hansoplast]

Thanks Hans. This is what I'm thinking of - the angle all works OK. I'm interested if anyone has done it this way on a Vixen...


This is a Vixen S3.
Perhaps it's so neat that ik looks like a Rolls.

Hans

[Hansoplast]

Thanks Hans. This is what I'm thinking of - the angle all works OK. I'm interested if anyone has done it this way on a Vixen...


This is a Vixen S3.
Perhaps it's so neat that ik looks like a Rolls.

Hans[


Forgot to say that I am not a racer as all the other TVR owners say to be (or want to be).
In a big shunt the car will be cracked as a fresh biscuit.
I just like to drive the thing.
Not too fast because too many bumps in Holland.

[Moto]

Hansoplast said:

In a big shunt the car will be cracked as a fresh biscuit.

What a great line. Somethings don't make sense when translated and this may be one. But it's just a great quote. Can I use it without being charged any royalties?

Thx Hans.

Oh - also meant to say similar to others that a full harness without a roll cage seems a bit scary - racing or not.

Moto

Edited by Moto on Saturday 17th September 10:18

[280i]

Hansoplast said:

I was told that the shoulder straps need to run in an wide angle to the shoulder. So not directly behind the seats.
So an crossbar was fitted with the straps fitted to it at nearly shoulder hight.

You may not like it but it works fine. Altering the length of straps is easy because in reach.
Crossbar fitted on top of wheelarch with 2 bolt and backplate in the wheel well.

Hans

Hans I very much like the way you did this. Do you think this could be done by simply mounting the bar between the top seatbelt anchor point?

[Hansoplast]

[quote=280i]
Hans I very much like the way you did this. Do you think this could be done by simply mounting the bar between the top seatbelt anchor point?

Hi 280i,

I do not understand what you exactly mean.
In my Vixen there were no ( specific reinforced) for the top anchor points.
So can not answer your question.
Sorry.

Hans

[anonymous-user]

The original anchor points were in the top of the wheel arches. That would work OK if the tube ends were fabricated to suit provided you don't mind lugging the spare over a scaffold tube.

I'm investigating the flat between the rear shock mounts - that would work very well with a bit of stainless angle and everything seems to line up.

[Astacus]

It would be good if you could post some pictures when you are done. i am interested in how this works out as I would like to improve on the standard third fixing point in my Vixen When I get that far.

It looks like originally my fixed length three point belt was fixed to the bottom of the wheel arch at the end, then to the top by a triangular bracket that fed the belt over the shoulder to astandard type clip by the left buttock. I seem to remember that this arrangement has been "strength tested" by a poster on here at some point but I am not sure I am convinced by the single point statistics and would quite like to find an improvement.

[anonymous-user]

Ok will do

[anonymous-user]

I've used a length of 40 x 20 x 3mm stainless angle, with the 40mm section horizontal and and an extended leg welded onto the vertical 20mm section at each end to pick up the rear unused shock mount. This is in exactly the right position under the rear deck for the eye bolts to miss the spare wheel. Seems to work fine. I went for s/s as I had it under the bench and being angle it is easily strong enough. I've trial fitted but will probably weld on a couple of captive nuts for the eye bolts to make it easier to undo the eye bolts.

[Astacus]

That sounds like it would work nicely and also be de mountable if necessary. I was wary of welding stuff to the chassis.

[oliverb205]

Moto said:

Hansoplast said:

Oh - also meant to say similar to others that a full harness without a roll cage seems a bit scary - racing or not.

Moto

Edited by Moto on Saturday 17th September 10:18

Well Steve, if ever I park the 3000S on it's roof I shall hold you personally responsible for fitting those Willans harness but not a roll cage!

Oliver.

[Monkeythree]

I made a harness mounting bar from 20mm square section thick wall tube. I welded in 4 x M12 nuts for the harnesses to bolt into and the bar is fixed to the chassis using 4 x 1 1/2" exhaust hangers which fit around the chassis tubes and up through holes drilled through the harness mount bar. It slides inbetween the body and chassis through the wheel arch. Gettiing the nuts onto the exhausts hangers was a bit tight for access but it is possible. All it needed then was 13mm holes drilling through the body to line up with the weldnuts and the harnesses just bolt through the body into the bar.

[Fiscracer]

V6Pushfit said:

Three point harness - the rear mount central behind each seat would be on the 'deck' a bit in front of the fuel tank well in the body. Is this deck area strong enough with an MSA type backing plate - Anyone fitted one in this way?

No it will pull straight through. It needs to be attached to part of the chassis in some way

[anonymous-user]

All done and worked very well just needs the seat side bolts moving further apart and QED.