7
3.5
–
Installing the speed sensor
To sample the dragster speed a magneto-resistive speed sensor (part number
XSMSNVB301
) is to be installed at a 4-8 mm
distance from the phonic wheel (part number
DNKTRF660
) that is to be installed on the jackshaft (3/4
” diameter
) moved by the
clutch. The movement of jackshaft and wheel are related to the crown/pinion ratio.
The scheme below shows the layout of the installation.
To correctly install the speed kit, follow these steps:
•
remove the pinion and insert the phonic wheel (internal diameter
¾”
) on the jackshaft.
•
fix the phonic wheel to the jackshaft screwing the nut.
•
install the magneto-resistive speed sensor on a self-made bracket; please remember that sensing distance
–
the distance
between the sensor and the phonic wheel
–
is to be 4-8mm (0.15
”
-0.3
”
)
•
plug the speed sensor male connector in the 4 pins Binder 712 female connector rear of MyChron5 660 highlighted here
below.
