Bill,
Go to the Master Tech Bulletin section in the SCCA Garage section of the Scca.com site:
6. Effective 1/1/05, approved by the BoD in December: change GCR Section 20. to read as
follows:
20. 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. (Note: SFI
requirements for Driver’s Restraint System does not include arm restraints at this
time. Window nets need not be dated.)
1. 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.
2. A six or seven-point system, recommended for use in all automobiles where the
driver is seated in a semi-reclining position, consists of a three (3) inch seat belt
or an FIA approved two (2) inch seat belt, 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
8. 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.
A. 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.
B. 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.)
C. 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 antisubmarine
straps.
D. If a restraint system has more than one type of certification label, the label
with the latest expiration may be used.
9. Harness Threading: Assemble in accordance with manufacturers instructions.
10. FIA certified 2-inch shoulder harnesses are allowed when the HANS® device is
used by the driver. 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 GCR Section 20.8.
Dave Z
[This message has been edited by Dave Zaslow (edited March 03, 2005).]
[This message has been edited by Dave Zaslow (edited March 03, 2005).]
