Introducing
Stainless Steel & Aluminum
High Integrity Performance Measurement
Introducing
Stainless Steel & Aluminum
High Integrity Performance Measurement
- Dragstrip Duplicator -with incredible wireless accuracy
The CHRONO-G is designed to be the most accurate dragstrip style timer available using inertial measurement technology. It wirelessly and portably mimics a dragstrip's operation. Pushing "Reset" starts a dragstrip style "tree" countdown then captures the reaction time from "LAST YELLOW" until the starting line is passed. Proprietary algorithms with calibration to each vehicle's suspension in 1/100th of a degree increments and to rollout in 1/10th of an inch steps provide extremely close duplication of the dragstrip's E.T.s - at all distances. All E.T. and distance timers start when the vehicle rolls out to pass the "virtual starting line"- dragstrip style. The only device to not only display both 1/8 & 1/4 mile ending speed, but also true dragstrip speed averaged over the last 66' before those marks. For links to the match test against the IHRA sanctioned dragway, see Accuracy
suction cupped to the center windshield, it wirelessly displays all these measurements -- every run - in real time:
Elapsed Time
Speed
Distance
Horsepower
G-Force
see the Measurements Table for details
Features for the Tuner and Racer:
* For the bracket racer, set your typical rollout distance, then fine tune your starting tree countdown reaction and vehicle rollout to just cut the "tree" without redlighting.
* Set a speed window and capture the highest peak horsepower, G-force, and speed that occur within it as well the elapsed time and distance required to cover the window.
* Record your vehicle's wind and rolling drag resistance in terms of G-Force which is used for true Horsepower calculation. Review this recorded log at each mph of speed to understand and reduce chassis rolling drag or improve fuel efficiencies.
* Rugged heavy hand polished cast aluminum enclosure, with aluminum support arms and 18-8 stainless knurled knobs, complement and set off any classic vehicle with a professional metallized touch of elegance.
CHRONO-G Design features:
- Highly linear and stable 1.5 G instrument grade bulk-mass accelerometer provides exceptional 7.5 ten-thousandths of a G resolution. This range is ideal for vehicles not using drag slicks with typical 1/4 mile E.T.'s above 11.80 seconds. Higher ranges for quicker cars optionally available.
- Proprietary algorithms with non-linear pitch compensation to 10 deg./G and fine 1000 increment tilt compensation adjustment coupled with rollout adjustment to tenths (1/10th) of an inch, insure accurate calibration to each vehicle, for excellent matchup with dragstrip measured times.
- To maintain its extreme precision, which could easily be lost with component aging, degradation, and temperature cycling, CHRONO-G features AUTOMATIC-RECALIBRATION, typical of only the finest instruments.
- Polished cast aluminum housing provides a temperature stable shielded environment for sensitive components. It reflects & rejects the the sun's impinging ultraviolet rays which can heat soak darker duller devices into temperature drift measurement errors.
- The powerful microprocessor displays any selected reading during the run, not just at the end, while for highest accuracy, it samples and calculates acceleration, velocity, and distance at 200 times/second to capture those small incremental changes lost at slower 100/second sample rates.
- All timing starts when the rollout distance is passed - dragstrip style, eliminating variances, offsets, & 1/4 mile timing errors associated with G-force starts.
- Simple two pushbutton operation - using high quality microforce buttons. Simply push one button to cycle to and read the next of 14 captured measurements for each run. Each sub-component of that measurement, for example, E.T., Speed, and G-Force, alternately cycle into the display.
- CHRONO-G is immediately ready to record all measurements at turn on. No programming or setup required before each run.
- All measurements from the last run are stored in memory, even with power off. Turn on and view the last run until overwritten by a new run.
- All user setup input, i.e.- car weight, number of countdown yellows, rollout distance, tilt calibration, user selected distance, speed bracket, & etc. are permanently stored in memory.
- Audible tone occurs at selected trip and capture points.
- LARGE 4 digit .5" character LCD display for easy viewing at a distance, just like viewing a dragstrip's timing boards.
- Small 4.35" W x 1.75" H x 3.21" D enclosure with small 1-1/4" clear mounting suction cups keep from blocking valuable windshield real estate.
- Low power circuitry uses only one internal common 9 volt battery for power.
- All stainless steel and aluminum construction provides heavy mass stabilization of the measurement platform and rugged unit integrity.
- Wireless operation and solid cast metallic enclosure provides superior shielding against spark and magneto Electro-Magnetic Interference (EMI).
- Each unit is furnished with a hand initialed calibration report documenting its 1/4 mile accuracy on the motorized mechanical testing simulator.
1.5G CHRONO-G built to order, price U.S., $999
RANGES higher than 1.5G optionally available
FOR USE ON ABANDONED ROADS OR AIRPORTS - NOT PUBLIC ROADS!!
For ordering information, email stemend@chronog.com
or contact
Stemen Engineering
5933 E. State Rd.
Lima, Ohio, 45807
419-236-2514