Triumph GT6 MK3 race harness fitting

[jimmyrjm]

Hi,

 

I recently purchased a sparco 6 point race harness for my 1972 Triumph GT6 MK3, and am not ready just yet to install it as I'm doing a restoration and want to drill to holes for the harness before it lay the carpet etc. I was just curious about the mountings and where you guys mounted your race harness' where exactly on the body panels? Any advice or pictures would be great. I would also love a picture of the crotch belt fitting holes in the floor panel, I have 2 crotch belts.

 

Regards,

 

Jim.

[JohnD]

Jim,

Please consult the MSA Yearbook, (The Blue Book), Section K Safety. https://www.msauk.org/assets/153191commonregulationsforcompetitorssafetyk.pdf

It's not specific for a GT6, but shows you the best way to secure the anchors and run the belts.  The shoulder belts in particular should be as horizontal as possible.

 

In that situation, using a cross tube of the roll cage is a good way to achieve this.  See: http://sideways-technologies.co.uk/forums/index.php/topic/4470-4-point-harness/   It avoids the need for more holes in the shell.  See Section K for details.  

 

The crotch belts should go through a hole in the seat, just in front of your crotch - many modern race seats provide one, and then be spread apart as widely as is practical.   The objective is to prevent 'submarining', where the energy of an impact pushes the body downwards in the seat - bad for the spine and (less importantly!) for the legs.    

 

For specific examples, suggest  you visit a race circuit where a GT6 is competing, and talk to the drivers.  Classic Sports Car Club has Gt6s in the "Swinging 60s" series  Their race calendar is here:   http://www.classicsportscarclub.co.uk/?q=Calendar

 

John

[jimmyrjm]

Jim,

Please consult the MSA Yearbook, (The Blue Book), Section K Safety. https://www.msauk.org/assets/153191commonregulationsforcompetitorssafetyk.pdf

It's not specific for a GT6, but shows you the best way to secure the anchors and run the belts. The shoulder belts in particular should be as horizontal as possible.

 

In that situation, using a cross tube of the roll cage is a good way to achieve this. See: http://sideways-technologies.co.uk/forums/index.php/topic/4470-4-point-harness/ It avoids the need for more holes in the shell. See Section K for details.

 

The crotch belts should go through a hole in the seat, just in front of your crotch - many modern race seats provide one, and then be spread apart as widely as is practical. The objective is to prevent 'submarining', where the energy of an impact pushes the body downwards in the seat - bad for the spine and (less importantly!) for the legs.

 

For specific examples, suggest you visit a race circuit where a GT6 is competing, and talk to the drivers. Classic Sports Car Club has Gt6s in the "Swinging 60s" series Their race calendar is here: http://www.classicsportscarclub.co.uk/?q=Calendar

 

John

 

Hi John,

 

Thanks for all this information it is very helpful I will study the links you have provided me.

 

Kind regards,

 

Jim.