Anyone fitted a 4-point seat-belt harness?

[dempsey]

Having done many trackdays in my Chimaera with uprated brakes and suspension, I just did my first one in the Cerbera (saturday at Bedford Autodrome).

The level of roadholding, composure, braking and cornering speed is in a different league.

Consequently I found myself using the steering wheel mainly as something to hang on to rather than as a pointing device.

I've got a CG-Lock on the seatbelt but it doesn't do anything for the upper body.

So I think I need to investigate a 4-point harness.
Anyone fitted one? Who's recommended to fit one? Can they be fitted without installing extra interior bracing tubing?

Thanks for any advice.

[neil0205]

I`ve not fitted one bit I`ve been told to fit it to the rear seat belt anchor.For the front mounts you need to take the seat out and use the belt mount on the right.I`ve just found this .. www.pistonheads.com/gassing/topic.asp?h=0&t=242126&hw=+%2B4+%2Bpoint+%2Bharness

[jesfirth]

Yep its a doddle.

A standard 4 point harness fits directly to the existing mounting points to each side of the driver seat and then you use the drivers sdie top mount and the rear seat parcel shelf mount but.

1. You need a very long harness for the straps to reach the rear parcel shelf. I got mine from Demon Tweaks. and then you will find that if you corner hard, car bouncing over kerbs etc (even with the harness tight) the shoulder straps can slip apart. The way I solved that was to use a velcro windsurfing strap to hold the 2 shoulder straps together just behind the head rest.

2. The bolts that hold the existing straps need to be replaced with eyes so that you can keep the belts for roads (or get a sore neck)and MOT and use the harness for the track. The bolts on the shoulder straps need to be the long ones not the standard ones cos of the guide that you need to retain to use the standard belts.

I would take photos but the car is at the mechanics at present.

[TT Tim]

The scrutineer at Cadwell yesterday was very thorough and suggested I crossed over my seat belt to stop them falling off in an accident, and I have to say it felt even more secure than normal.

I have wide belts, I think they may be too wide to cross over, so a narrower set are in the pipeline.

You could try Rally Design for belts as well: www.raldes.co.uk

Good luck

Tim

[dempsey]

Thanks guys, you've pointed me in the right direction.

One last question - I assume your solutions involve permanent fittings;
is it possible to get a harness that can be easily removed, leaving the
seat belt in situ for everyday use?

[TT Tim]

dempsey said:

Thanks guys, you've pointed me in the right direction.

One last question - I assume your solutions involve permanent fittings;
is it possible to get a harness that can be easily removed, leaving the
seat belt in situ for everyday use?

In short - yes.

Simply swap the seatbelt mounting bolts for eye bolts with extra long threads. Most race harnesses are clip in so hey presto you can add and remove as you see fit. I have both in mine inertia belt for road use, and 4 point belt for weekend fun.

Tim

[jesfirth]

Yes you can.

the new bolt fixings have an eye on them so you can just unclip the harness when you want to, but the original belts are still fixed by the bolt. the only probelms with this are.

the mounting behind the seat in the tunnel is a bugger to get at so i just tuck that part of the harness under the saet rather than remove it

and the rear mounting point on the b pillar is at head height ofr a child in the rear seat so it would cause alot of damage in the event of an accident. i have some foam padding to cover mine.

Jes