As I can’t really see all my dials, I decided to buy a Honda S2000 instrument cluster today. It’s a lot smaller and should be entirely visible through the steering wheel.
The cluster is a bit of a pain to connect because the S2000 has a 156000 ppm (pulses per mile) speed sensor, while the miata has a 4000 ppm. I’ll have to come up with a way to multiply the stock signal by 39.
Also, the coolant sensor does not just measure the resistance (voltage) of the coolant sensor. Instead, the ecu measures it and sends a 5V signal that has a 30ms high pulse and a 150ms to 1500ms low pulse, relavite to the temperature, so that’ll require some modifications as well.
Oh, and I’ll have to reprogram the km reading, because I only have 12K kms, not 142K!
I have no idea yet if it’ll fit inside the Westfield dash as the upper part of the cluster is rather high. I’ll make it fit if necessary.
I’m also planning on changing the color of the display because I don’t like the yellow/orange backlight. It’s just a piece of plastic, so it shouldn’t be too hard to swap it with a different color. The bulbs are a bit yellow-ish as well, so I’m going to look into replacing them with bright white leds.
More pics in the S2000 album.
