Manufacturer: Chronar clocks, odometers, and rally computers
Owner Ed Rachner produces the Chronar line of TSD rally equipment. This line, designed by the late Mac Cornforth, has included clocks, odometers, and computers. Their current production model is an A-Box designed for Computer Class competition.
Note: While Ed Rachner produced the Chronar line of rally equipment, he is no longer engaged in the rally business. This entry is provided as a point of contact for inqueries for existing equipment.
This sofware allows you to use your IBM compatible laptop computer as a full-featured rally computer.
Manufacturer: C-rally computer.
The Coralba computer is generally designed for use as a Pro Rally odometer.
Marc Goldfarb produces a memory module for the Texas Instruments TI-74 palmtop computer that turns it into the Turbo-Kurta TSD calculator. The module is available with the computer or separately.
Manufacturer: Halda odometers and computers (mostly used in European Pro Rallying) and speedometer components (cables, T-gears, etc).
Manufacturer: clocks, electronic components, and kits.
Manufacturer: rally odometers
Helius produces a line of rally odometers that use sunlight-viewable LED displays.
Publisher: rally books, tables, and software.
Manufacturer: precision analog speedometers
Herschel Crump owns this outfit, which has supplied several competitors in the Great American Race with temperature-controlled, precision speedometers.
Manufacturer: precision analog speedometers
Don supplies custom-made precision speedometers to Great American Race competitors. His units are based on tachometers designed for high-vibration environments.
Manufacturer: Alfa clocks, A-Boxes and B-Boxes.
Owner Mike Friedman is the designer/manufacturer of the Alfa line of TSD rally equipment. Current units include computers designed for Computer Class competition, correctable odometers for Odo Class, and clocks for checkpoints and competition.
Manufacturer: Custom rally and hillclimb cars
Owner Brad Martin is a designer of rally cars and a frequent rally and hillclimb competitor.
Specializes in building race and rally cars, as well as, customizing performance street cars.
Owner Murray Thomas.
Manufacturer: Terratrip rally computers (one model useful for Odo Class)
Eddie Cartrwight produces a line of rally equipment designed for European Pro Rallyists. Several of the units are suitable for American TSD rallying, particularly in Odo Class competition. They also produce correctable speedometers.
Manufacturer: Timewise odometers, rally computers, clocks, and sending units.
Owner Jack Christensen is the designer and manufacturer of a line of rally equipment for TSD competition. The units include TSD computers for running in a Computer Class, units designed for Odo Class competition, and competition and checkpoint clocks. Jack can be contacted for special-order equipment or particular modifications desired for Timewise equipment. Jack also repairs older Zeron equipment and Curta calculators. A wide selection of sending units are available.
Dealer: Instruments and gauges. VDO, Stewart Warner. Custom cable and casing, speed ratio adapters.
Manufacturer: Checkpoint clocks and automatic triggers.
This company specializes in a line of clocks and infrared triggers for use by checkpoint crews. The triggers utilize a motion-sensitive photo-head which requires equipment on only one side of the road.
Manufacturer: Rally computers (A-Boxes).
Bill Hall developed a small, clipboard-mounted rally computer. Production is currently on a per-order basis. This unit is not currently available through any distributors, so call Bill directly to inquire.
Manufacturer (out of production): Zeron clocks, odos, & computers
Bill Gronning produced the Zeron line of rally computers, odometers, and clocks. He may be willing to repair or do maintenance on the equipment on a case-by-case basis.