MX5 NC 6 speed adding a electronic speedo drive

[Darbo]

decided to put a mx5 6 speed in my 2.3 duratec escort as the cossie t5 is whineing abit





but after buying the box found that its speed sensor is just a blank and you need some hens teeth part to make it work
so seeing as i just bought a lathe i decided ill have a go at making the speed sensor gear wheel





the signal wheel mounts on the tail shaft using a 6mm bearing and circlip to keyway it in place
i will drill between the boss i made trial and error untill i get the right depth so the circlip locates




im planning to index 6 teeth on the gearboss but as i dont have a index wheel on my lathe and im very much a amature it will be out with the grinder to cut my teeth
in the "to size" boss ,the easy bit was the sensor its just a mazda 3 wire sensor the box already has a place for it to bolt

[stevieturbo]

What does the box/car normally use for speed ?

What sort of signal do you need for whatever speedo is in the car ?

[Darbo]

mx5 duratec nc normally take a speedo signal from the abs sensors
they did fit the gearbox speed sensor on none abs supplied cars
my car has a racetech programable speedo using a ford ka /fiesta speed sensor of the cable drive with a burton adapter in the cossie t5 box
so it just needs a 3 wire adapter to mazda sensor from the superseal i had fitted to the ka sensor
anyway the gearbox 6 tooth wheels done i balanced the mazda sensor ontop

[Dazzx10r]

Very clever, I'm looking at mounting an abs reluctor ring onto the gearbox end of the propshaft and using an abs sensor for speed signal

[Billybob1982]

Would you be willing for cash to make one to suit a rx8 5 speed gearbox to mk2 rs2000 clocks?

[katana]

Mk2 RS2000 clocks are mechanical so this would be pointless for you!