Main index

 

Hold Curser Over Button For Contents

BRAKE PADS   MASTER CYLINDERS   RESERVOIRS   FLUIDS   AP CALIPERS   CALIPER REBUILD SEALS AP  BREMBO  ATE  GIRLING    BRAKE PEDAL BIAS CABLES

SAFETY HARNESS   KONI DAMPERS   SFI BAR PADDING   FUEL CELLS   MIRRORS   STEERING WHEEL HUBS   BEAD SEATING

PUSH-PULL CABLES   TENSION (THROTTLE) CABLES   BODY MOUNT CABLES

OIL COOLERS   CUSTOM RADIATORS   COOLANT HOSE/CLAMPS

AP RACING CLUTCH   HEWLAND GEARBOX   WHEEL BEARINGS   CV JOINTS   MIL-SPEC U-JOINTS

 

BELL HELMETS   HANS DEVICE   RACING UNIFORMS   MALE & FEMALE RACING UNIFORMS   MALE & FEMALE RACING UNDERGARMENTS    RACING GLOVES    RACING SHOES

RACING BATTERIES   LED WARNING INDICATORS   MASTER AND TOGGLE SWITCHES     BOSCH IGNITION      WIRE CONNECTORS     THIN WALL ELECTRICAL WIRE     CRIMPING TOOL

AN FASTENERS   JET NUTS   JAM NUTS   TY-RAPS   TERRY SPRINGS   CAPTIVE HOOD PINS   CAPTIVE WASHERS

RED LINE SYNTHETIC PRODUCTS

BELL HELMET ACCESSORIES   WEBER CARBURETORS   WEBER AIR FILTERS   CIRCUIT WORKERS SAFETY CUSTOM ALLOY WINGS

 

EARL'S PERFORMANCE BRAKE, FUEL, OIL HOSE   HOSE-END FITTINGS   HOSE ADAPTERS   WELD-ON FITTINGS   FLAME GUARD HOSE INSULATION   HEAT CLOTH

AURORA ROD-END AND SPHERICAL BEARING   MIL-SPEC U-JOINTS   WHEEL BEARINGS

SERVICES WE CAN PERFORM FOR YOU

SAFETY KLEEN PRODUCTS   HYLOMAR   COPASLIP   AUTOSOL   TIRE GAUGES   WIRE PLIERS   CLECO'S   PYROMETERS   DZUS TOOLS   ALLOY HOSE WRENCH   ROBIC WATCHES

PANASPORT ALLOY RACE STREET WHEELS

 

New Stuff

OUR CONTACT INFORMATION

Up ] Products ] Services ] Hours&Location ] Contact Us ] Search ] Links ]

Fit and other Instructions

hans device general size chart

HANS SIZE - comfort is the deciding factor for those between sizes.
Exceptions - some drivers with highly developed muscles may require one size larger than their neck size would otherwise indicate.

Device Angle

The angle of the driver's seat back must match the angle of the HANS Device. Examples below indicate the correct fitment for each angle of device.

HANS Device model angles, model 10, model 20, model 30 and model 40 

Model 10 - Extreme Upright

Rare Application fits some Sprint Cars, Midgets.
EXCEPTION: May fit drivers with a thin chest, who would otherwise fit a Model 20.

 

 Model 20 - Upright

Fits all Sedans, sports cars, Midgets, late models, Modifieds, etc., such as NASCAR, Corvette, Porsche, Viper, Miata, Honda and similar.

 

Model 30 - Semi Reclined

Fits many single seat vehicles, such as Formula Ford, Formula Mazda, F2000, SR-1, SR-2 Spec Racer Ford and similar.
EXCEPTION: May fit drivers with a barrel chest, who would otherwise use a Model 20.

 

Model 40 - Fully Reclined

Rare application, fit some vintage Formula cars and Formula 1 vehicles. *Measure seat back before ordering to ensure correct fit. 

 

Basic Concept

 

    In a crash without a HANS, the shoulder harness and seat, restrain the driver's torso, but only the neck restrains the head and helmet.

The HANS device reduces the whipping action of the head and keeps the driver's head from being pulled away from their upper body. With a HANS, forces stretching the neck in a frontal collision are reduced by 80%. In a frontal crash, the tethers restrain the head with forces that directly counteract the head's forward movement while the torso and HANS are restrained by the shoulder harness. By restraining the head to move with the torso in a crash, the head motions and forces in the neck are dramatically reduced. In a crash test without a HANS, head accelerations, neck loads are largest due to swinging motion of the head.

Note: Many chassis do not feature properly located shoulder harness mount locations to begin with. These should be corrected for proper harness performance, regardless of whether or not a HANS device is being used.

 

 

SFI Specification 38.1
Head and Neck Restraint Systems

The SFI Foundation, has established Specification 38.1 "Head and Neck Restraint Systems", as a partner to their other standards for specialty/performance automotive and racing equipment.

Conformance with this new specification, requires demonstrations that equipment, like the HANS Device, meets or exceeds performance standards established by experts in driver safety.

Devices are tested both when a manufacture, like HANS  Performance Products, enters the program, and on a periodic basis thereafter. All testing is conducted by an independent laboratory, is authenticated by a state registered professional Engineer, and is observed by an SFI official. In a test, devices are fitted to a crash dummy in a dynamic crash sled configured to replicate a racecar environment. 

The crash dummy is restrained by a Nylon SFI Specification, 16.1, six-point driver restraint system provided by SFI. A minimum of two frontal crash tests and one 30 right frontal crash test are conducted. Each test represents a 43.5mph (70 kph) crash. For a device to "pass" the first time, the dummy's neck tension and compression, must be less than 720 lbf (3,200 N) is all tests. Any result over 900 lbf (4,000 N) is considered an outright failure. Once SFI's performance and other requirements are met, a manufacturer may advertise, promote and offer a Head and Heck Restraint System for sale, with the representation that their product meets SFI Specification 38.1.

hans head and neck restraints, with and without test photos

Peer Group Acclaim

HANS success has not come overnight. Downing and Hubbard have spent more than 25 years on the development of their HANS technology as a commitment to help keep high-performance motorized sports participants from injury and save lives. Their success and commitment has been recognized by many professional and sporting organizations worldwide.

 

HANS anchor information SAH and 8860

 

Stop by our Michigan location for personal assistance with your HANS Device.

Copyright 2016 Averill Racing Stuff, Inc.
Madison Heights Michigan
Phone 248-585-9139  Fax 248-585-9242