Drag Racing Data Loggers

Aim MyChron4 660 Drag Racing Datalogger

The MyChron4 660 is a modular, expandable drag racing system used to sample, view and record all data concerning your dragster.

As a standalone unit the MyChron4 660 records Engine RPM, Wheel Speed in MPH (calculated by jack shaft RPM and final drive ratio), Exhaust Gas Temperature, Cylinder Head Temperature, CVT and overdrive percentage are product of engine RPM and jack shaft RPM. It also provides linear g-force as a derivative of wheel speed or rate of acceleration. Each channel is recorded 50 times per second (50Hz).

Being a modular system, the new MyChron4 660 expands the already huge range of features which made MyChron3 660 the most powerful datalogger and gauge specifically designed for jr. drag racing. MyChron4 660 of course keeps the winning features of the former product:

Steady Stage

MyChron4 660 includes by default an RPM display stabilizer automatically invoked below 5000 RPM. The RPM stabilizer will slow and average the engine RPM on the display. The result is a much more steady and consistent number for your carburetor tuning, as you can see in this clip (wmf file).

Real Time Display

In the real time view the Engine RPM’s are displayed as large digital numbers, smooth and steady. You can also see both your cylinder head temperature and your exhaust gas temperature, labeled EGT and CHT. Lambda value can be checked too for 10″ as an alternative to CHT, simply pushing a button.

Built in Clock and Calendar

MyChron4 660 has also got a clock and calendar to time and date stamp every run. As evolution of MyChron3 660, MyChron4 660 makes further steps to allow a deeper and deeper evaluation of your Jr. Dragster behaviour:

Improved Post Run Review

At the touch button, you’ll get your maximum engine RPM, maximum jack shaft RPM, maximum temperatures, total recorded run time and much more.

New graphical display

With MyChron4 660 you’ll get a clear graphical display of RPM and jack shaft, as well as Exhaust Gas and Cylinder Head Temperatures, and even CVT, Overdrive channels and calculated wheel speed in MPH.

The MyChron4 660 is legal in NHRA competition.

Use of additional sensors by way of expansion modules may not be legal during NHRA official testing or competition. Please consult your rulebook or check with your club or sanctioning body before adding expansion modules, such as lambda.

In The Box

MyChron4 660

Technical Specs

MyChron4 660

System dimensions: 125,7 x 87,7 x 20,5 mm
Weight: 293 g
Waterproof: IP65