6pt harness mount points?

blackparis · #1 (**permalink**) 05-04-2007, 06:33 PM

Ok...

So today I test fitted the seat brackets Byron sold me

They seem to fit no problem... He said they were off in one corner???

But now I am looking at this... Where do bolt the 6point harness to? Should I drill some holes in the bracket and get some grade 8 bolts/nuts/washers? Or should I use the bolts that mount the bracket down? Or should I mount this stuff elsewhere?

I had a 4pt in my old BMW and just stuck longer bolt in the rear seat mounts and they worked fine... (but I never got in an accident to test em out)

I'm just curious I want to do this the proper safe way...

O and I already have a harness bar...

JClark · #2 (**permalink**) 05-04-2007, 10:09 PM

The SCCA rule book has full instructions on the proper mounts and angles. I used my BMWCCA book but they are the same specs (probably even the same diagrams). Google for the SCCA or BMWCCA specs. Either of those will pass every hard tech inspection you'll ever do.

blackparis · #3 (**permalink**) 05-04-2007, 10:49 PM

Quote:

Originally Posted by JClark

The SCCA rule book has full instructions on the proper mounts and angles. I used my BMWCCA book but they are the same specs (probably even the same diagrams). Google for the SCCA or BMWCCA specs. Either of those will pass every hard tech inspection you'll ever do.

Ok... SO I checked my SCCA solo rule books... Cant find any info on it...

Any Idea what sections? Or am I looking @ the wrong rulebook? All I do is solo, but would like to get to the track...

Thanx!

mikecentola · #4 (**permalink**) 05-04-2007, 11:22 PM

6 point harnesses are bad without a cage. I wouldn't want that submarine belt strong at all since that is whats keeps you there to smash your head in.

blackparis · #5 (**permalink**) 05-04-2007, 11:30 PM

Quote:

Originally Posted by mikecentola

6 point harnesses are bad without a cage. I wouldn't want that submarine belt strong at all since that is whats keeps you there to smash your head in.

I hope to have a cage before hitting up the track....

This year I am sticking to SOLO events... I can relocate the belt points once I get a cage.. I sure hope i dont toal my car @ a Solo event...

mikecentola · #6 (**permalink**) 05-04-2007, 11:32 PM

That's a good idea. When I had my 6 points in the wrx, I just used the front bolts where the seat bracket mounts to. It was the best place to mount them without drilling/welding

JClark · #7 (**permalink**) 05-05-2007, 04:50 AM

BP- Whups, check the SCCA Club Racing rulebook. If you dont have it, they will be online in PDFs.

blackparis · #8 (**permalink**) 05-05-2007, 11:03 AM

Quote:

9.3.18. DRIVER’S RESTRAINT SYSTEM All drivers in SCCA sanctioned speed events shall utilize either a five, six or seven point restraint harness meeting the following specifications. A seven-point restraint harness is recommended. Arm restraints are required on all open cars including open Targa tops, sunroofs and T-tops. The restraint system installation is subject to approval of the Chief Technical and Safety Inspector.

A. A five point system, for use in automobiles where the driver is seated in an upright position, consists of a three (3) inch seat belt, an approximately three (3) inch strap over the shoulder type of shoulder harness, and an approximately two (2) inch anti submarine strap. A Five-point harness is considered a minimum restraint system. Six or seven-point systems are highly recommended in all cars including automobiles where the driver is seated in an upright position.

B. A six or seven point system, recommended for use in all automobiles, consists of a three (3) inch seat belt or an FIA approved two (2) inch seat belt (SFI 2-inch seat belts are not currently allowed), approximately a three (3) inch strap over the shoulder type of shoulder harness, and two approximately two (2) inch leg or anti submarine straps. The seven-point system also has an approximately two (2) inch anti-submarine strap.

C. The material of all straps shall be Nylon or Dacron polyester and in new or perfect condition. The buckles shall be of metal to metal quick release type except in the case of leg straps of the six point or seven-point systems where they attach to the seat belt or shoulder harness straps.

D. The shoulder harness shall be the over the shoulder type. There shall be a single release common to the seat belt and shoulder harness. When mounting belts and harnesses it is recommended that they be kept as short as reasonably possible to minimize stretch when loaded in an accident. The shoulder harness shall be mounted behind the driver and supported above a line drawn downward from the shoulder point at an angle of twenty (20) degrees with the horizontal. The seat itself, or anything added only to the seat shall not be considered a suitable guide. Guides must be a part of the roll cage or a part of the car structure. Only separate shoulder straps are permitted. (“Y” type shoulder straps are not allowed.) “H” type configuration is allowed.

E. The single anti submarine strap of the five point system shall be attached to the floor structure and have a metal to metal connection with the single release common to the seat belt and shoulder harness.

F. The double leg straps of the six point or seven-point system may be attached to the floor as above for the five point system or be attached to the seat belt so that the driver sits on them, passing them up between his or her legs and attaching either to the single release common to the seat belt and shoulder harness or attaching to the shoulder harness straps. It is also permissible for the leg straps to be secured at a point common to the seat belt attachment to the structure, passing under the driver and up between his or her legs to the seat belt release or shoulder harness straps. All straps shall be free to run through intermediate loops or clamps/buckles.

G. Each seat (lap) and shoulder belt of the harness (5, 6, or 7 points) shall have an individual mounting point (i.e. 2 for seat belt and 2 for shoulder belt minimum). Six or seven point system anti-submarine straps may share a mounting point with one or both seat (lap) belt(s). The minimum acceptable bolts used in the mounting of all belts and harnesses is SAE Grade 5. Where possible, seat belt, shoulder harness, and anti submarine strap(s) should be mounted to the roll structure or frame of the car. Where this is not possible, large diameter mounting washers or equivalent should be used to spread the load. Bolting through aluminum floor panels, etc., is not acceptable.

H. All driver restraint systems shall meet one of the following: SFI specification 16.1, FIA specification 8853/1985 including amendment 1/92 or FIA specifications 8853/98 and 8854/98.
1. Restraint systems meeting SFI 16.1 shall bear a dated ‘SFI Spec 16.1’ label. The certification indicated by this label shall expire on December 31st of the 2nd year after the date of manufacture as indicated by the label.
2. Restraint systems complying with FIA specification 8853/1985 including amendment 1/92 shall be no more than five (5) years old. (Not all manufacturers are dating every belt in a set. They may be dating one of a pair of shoulder or lap belts or may only be dating one belt in an entire set. Scrutineers are reminded that restraint systems need only one date label.)
3. Restraint systems homologated to FIA specifications 8853/98 and 8854/98 will not have a date of manufacture label. Instead they will have a label containing the Manufacturer’s Name, Type of Harness Designation and Date of Expiration which is the last day of the year marked. All straps in this FIA restraint system will have these labels. FIA restraint systems with the certification ‘D ####.T/98’ are equal to FIA specifications 8853/98 and 8854/98, and are therefore, acceptable restraint systems. FIA two-inch seat belts with the certification 8853/98 are acceptable restraint systems when used in conjunction with their corresponding FIA shoulder harness and anti-submarine straps.
4. If a restraint system has more than one type of certification label, the label with the latest expiration may be used.

I. Harness Threading: Assemble in accordance with manufacturers instructions.

J. FIA certified 2-inch shoulder harnesses are allowed when the HANS® device is used by the driver. SFI 2-inch shoulder harnesses are not currently allowed. Should the driver, at anytime not utilize the HANS® device, then 3-inch shoulder harnesses are required. The replacement cycle for the 2-inch harnesses shall be per Section 9.3.18.H.

There is what I found... So basically each belt needs to have a separate mount?

Since ALL I am going to be doing this year is solo, can I get away (@ local and regional SOLO events) with just mounting the belts between the seat bracket and the floor? (seat mounting points) Then When I finally get a cage I can do it the proper way...

mikecentola · #9 (**permalink**) 05-05-2007, 08:12 PM

Quote:

Originally Posted by blackparis

There is what I found... So basically each belt needs to have a separate mount?

Since ALL I am going to be doing this year is solo, can I get away (@ local and regional SOLO events) with just mounting the belts between the seat bracket and the floor? (seat mounting points) Then When I finally get a cage I can do it the proper way...

Yeah I think you can. That's how I did it when I was autox-ing my wrx. Instead of putting them between the floor and the bracket, I would do floor, bracket, washer, seat belt, washer, bolt.

blackparis · #10 (**permalink**) 05-05-2007, 09:48 PM

Quote:

Originally Posted by mikecentola

Yeah I think you can. That's how I did it when I was autox-ing my wrx. Instead of putting them between the floor and the bracket, I would do floor, bracket, washer, seat belt, washer, bolt.

Cool, Much thanx! Just hope the MoHud scca Officials don't mind...