Aim MyChron 3 660 Technical Documentation Download Page 2

                                           

 

                                                                                                                        MyChron 3 660 

2

Installation notes 

 

 

 

We suggest You to install the gauge behind the body cell on the vertical metal bulkhead 
which separates the driver’s seat from the engine. In particular, as shown in 

Figure 2

AIM recommends all 

MyChron 3 660

 users to install the gauge under the engine’s 

ON/OFF switch. 

 

The gauge 

has to be mounted on a

 

self-made bracket

Figure 2

 shows an example of 

mounting bracket. 

 

The bracket has to be made in aluminum or steel; its thickness must be 2.5 mm (0.1“) or 
more in order to have an high stiffness and not to vibrate when the engine is turned on. 

 

Please, firmly fix the bracket to the vertical metal bulkhead and, afterwards, fix your 

MyChron 3 660

 to the bracket. 

 

Do not over-tighten the 8 mm nut. Over-tightening the nut may cause damage to the 
display unit casing.

 

 

While connecting the RPM wire to your MyChron 3 660, please keep this cable as 
far as possible from temperature ones. In case RPM and temperature wires are 
wrapped together, temperature channels might be very noisy. 

 

660

ON

OFF

ON

OFF

 

Figure 2

: How to install Your 

MyChron 3 660

 on Your Junior Dragster: 

front view (on the left) and side view (on the right). 

Example of self-made bracket on the right. 

 

Display description 

 
 

Exhaust gas temperature

Temperature unit of measure

RPM graphical bar

USB port

RPM input

RPM digital value

Low battery warning

Night vision

Current time hh.mm.ss

Day - Month - Year

Speed - Shaft RPM

RPM scale

Cylinder head temperature

Run time

Battery voltage

660

 

Figure 3: MyChron 3 660

 display. 

 
 

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