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Some Help Installing Racing Harness

dont_ask

By dont_ask,
in New South Wales

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dont_ask Collaborator

dont_ask

Posted
Posted

Anyone able to give me some pointers on where to mount the racing harness?

Its a 3 point harness the rear top straps are mounted to the rear seat beats bolts cant work out where to mount the bottom half of the harness any pointers will be appreciated.

Its in a R34 GTT without a roll cage.

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https://www.sau.com.au/forums/topic/381089-some-help-installing-racing-harness/
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The Bogan Grand Master

The Bogan

Posted
Posted

Use the search function, there are lots of ways to do it but most of them are wrong.

You don't want a harness if you don't have a roll cage either, if you roll the far the harness will hold you upright and your head will act as a roll cage, but with your head made from meat and bone you will be dead.

MBS206 Grand Master

MBS206

Posted
Posted

Use the search function, there are lots of ways to do it but most of them are wrong.

You don't want a harness if you don't have a roll cage either, if you roll the far the harness will hold you upright and your head will act as a roll cage, but with your head made from meat and bone you will be dead.

I'll take a harness in a roll over crash over a seat belt with or without a roll cage any day thanks.

As to the question from OP, the BEST thing to do, is actually grab the CAMS regs on mounting and get the angles right. As for the nut strap, you will most likely need to drill straight through the floor, and put the mount in. You can buy certified mounting plates from around the place that the loop will bolt into.

GoldZilla Grand Master

GoldZilla

Posted
Posted

As for the nut strap, you will most likely need to drill straight through the floor, and put the mount in. You can buy certified mounting plates from around the place that the loop will bolt into.

Before you drill, MAKE SURE you're not going to pierce through fuel or brake lines, or drill straight into a wiring harness.

The Bogan Grand Master

The Bogan

Posted
Posted

3 point harness hence no nut strap, only correct way IMO would be to install a harness bar, you can use the bolt on the seat belt slide thing on the right side but you will need to drill a hole in the floor on the left side and use a backing plate.

Look at a few cars that have rolled over, its the top of the seat that stops it from going any further down, if you cannot move out the way its going to be your head that stops it.

Do a risk assessment on it and see what you come up with.

Mark " safety devices that are installed without thought will be just another risk "

Cassbo Grand Master

Cassbo

Posted
Posted

In my R33 I have a 4 point harness that uses 3 mounting points.

I used the following:

Front bolt for the OEM seatbelt rail for the right hand side

Rear left seat bolt for the left hand side

Made a bracket that bolts onto the parcel shelf for the rear mounts

I'd take photos when I get home, but home doesn't have internet at the moment :laugh:

Off the top of my head I think CAMS recommends a maximum of a 45deg angle from the horizontal from your shoulders (or something to that effect). Any more than that and the harness will tend to pull you down, puting extra strain on your spine (source: Eric the CAMS scrutineer at the old Oran Park drift days :D) This means that your rear mount from the rear seat belt is not ideal...

In my opinion, a harness with a OEM seat is far more effective in holding you in place that an aftermarket seat with OEM seat belts :thumbsup:

The Bogan Grand Master

The Bogan

Posted
Posted

It will definitely hold you in place so you don't move around but that isn't what a harness is designed for, the seat holds you in place, the harness stops you from being thrown around in the event of a accident.

dont_ask Collaborator

dont_ask

Posted
  • Author
Posted

Thanks for all the advice guys i kind of got most of the harness installed except the bottom strap on the left. which i need to buy or create a plate to bolt one down.

I was originally going to use the normal seat belt my friend gave me his harness as a present so i thought i use it just for fun.

MBS206 Grand Master

MBS206

Posted
Posted

3 point harness hence no nut strap, only correct way IMO would be to install a harness bar, you can use the bolt on the seat belt slide thing on the right side but you will need to drill a hole in the floor on the left side and use a backing plate.

Look at a few cars that have rolled over, its the top of the seat that stops it from going any further down, if you cannot move out the way its going to be your head that stops it.

Do a risk assessment on it and see what you come up with.

Mark " safety devices that are installed without thought will be just another risk "

Look at the injuries sustained in crashes from front on, side on, and rear on from seat belts, and then from harness.

Then compare the number of total accidents that involve roll overs.

Even on the track, roll overs are the rarest form of accident.

Even if you don't have a roll cage, I'd rather protect myself from the most common type of injuries/accidents...

Aggroman Grand Master

Aggroman

Posted
Posted

Thanks for all the advice guys i kind of got most of the harness installed except the bottom strap on the left. which i need to buy or create a plate to bolt one down.

I was originally going to use the normal seat belt my friend gave me his harness as a present so i thought i use it just for fun.

your lower left strap should be easy..

I ended up bolting mine onto my seat rail bolt as its directly opposite the bottom seat belt bolt and goes along the transmission tunnel unlike most other skylines that bolt to the floor..

Hope that made sense.. Basically to summarise.

bottom left strap - left rear seat rail bolt

bottom right strap - bottom seat belt bolt.

shoulder straps. bottom rear seatbelt bolts or rear child restraints or harness bar ( whichever is best location or available)

If i remember ill take pics of mine tomorrow

MBS206 Grand Master

MBS206

Posted
Posted

Thanks for all the advice guys i kind of got most of the harness installed except the bottom strap on the left. which i need to buy or create a plate to bolt one down.

I was originally going to use the normal seat belt my friend gave me his harness as a present so i thought i use it just for fun.

You are only going to be using this on the track correct?

If it isn't engineered and certified, and you're using it on the road, you can be booked for it.

Cassbo Grand Master

Cassbo

Posted
Posted

In my experience it's a bad idea to use a harness on the road anyway. In combination with my dark tints and my low mounted Sparco Sprint V, blind spots get quite large and only get larger if I can't move my body :laugh:

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