harnesses

[stuthemong]

Hi guys,

Just musing - how easy (ha!) is it to fit 4 pt harnesses to a cerb? Just wondering what's involved - I'm guessing new seats and some sort of bar across the back seats?

Has anyone done this without totally stipping/building a racecar?

I'd like to more secure in the seat

[Nickccc]

Longbow has done this check his thread.
I know what you are saying about being a bit more tied into the seat,
you find yourself holding onto the wheel to keep from sliding about.
Maybe try to get one of these made for Cerb fitting.
http://www.gmpracingproducts.com.au/harnesses/Trac...

[Gazzab]

You dont want to use 4 point harnesses on the road. Right pain and not really very safe so I am told.
My first cerb had them fitted (and removed though before I bought) by prev owner. I cant remember how they fitted but they didnt require much surgery.
If you just want to be held in place better then I think there are other options, dont some people by something to attach to current belts?

Edited by Gazzab on Sunday 15th August 22:34

[Nickccc]

The link above is a clip in device, uses the existing belt retainers no changes
required. Though the Cerb seatbelts retainers are not in the ideal possition
for such a kit. Have a look at the G lock aswell.

[Tanguero]

You just replace the bolts in the existing seatbelts with long ring bolts and use a clip in harness. That way you can keep the inertia reel for road use (which is vastly preferable) and use the harness for track.

If you are buying ring bolts, they are generally available in 2 lengths - you need the long ones because of the depth of the Cerbera seatbelt fittings. I agree that the placement isn't perfect but I was given a tip by a scrutineer at a sprint who suggested crossing the shoulder belts of the harness behind the headrest. That way they are far less likely to slip off the seat in the absence of proper retaining holes.

[Nickccc]

Have you got a picture of that setup? I'm not doubting you've done it
properly, just can't visualise how the lap belts would sit.
Both lower retainers are to the left of you.

[markh1]

I use a CG lock, from my own experience in other cars it is much better than a four point harness. The CG lock holds your butt into the seat but stills allows you to lean forward at junctions. With a harness you can't lean forward at junctions and it really hampers your visibility.

[Tanguero]

Nickccc said:

Have you got a picture of that setup? I'm not doubting you've done it
properly, just can't visualise how the lap belts would sit.
Both lower retainers are to the left of you.

This is the passenger side, but the drivers one is arranged the same way (but with a wider harness that has an aircraft type buckle)


I am not quite sure what you mean about the lower retainers? The standard seat belt has a mounting point either side of the seat, one on the pillar and one on the back shelf. I just replaced the standard bolts with long ring bolts and clipped the harness in. The lower ones are tight to get to but I managed with just sliding the seat right forward.

I will try to take some pictures of the bolts later if this doesn't clarify it.

[Dave 500]

I have them in mine and also kept the standard belts.

The backs are held in with eye bolts and the lap belts are fitted with normal bolts as you can't get the clearance for eye bolts.

I used eye bolts at the back so they could easily be removed.





You will also need to remove both front seats to get to the bolts for the lap belts.

[stuthemong]

Thanks guys, interesting stuff for sure.

I think that if I did do this, I'd do it alongside a proper bucket seat - has anyone worked out which variants fit? Any particular examples of seats that should get in with minimal surgery?

Something like these, especially if I could get them retrimmed in cream alcantara with maroon squab, would be great - http://www.demon-tweeks.co.uk/Motorsport/Seats_&am...

The height of the rear mounting points looks pretty good, no need for a harness bar - woot!

I shall maybe give this some more thought, but any input on types of seats that fit are appereciated