toy-mota

Mechanical to electric speedo

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So im looking at changing my speedo from mechanical to electrical. Currently my cable does a sharp turn out of the gearbox And wobbles the needle +\~ 15km , also im pretty sure i need to change the gear on the driver. 

So im thinking change to electric sensor - run to link ecu ( change to correct output) - dash speedo. 

Do i just need to find a electrical speedo with the same sweep and cut to fit? 

Gearbox is a w57. 

 

Thanks

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You've likely already figured out how to get a signal, but an Altezza speedo drive should fit straight in to the W57.

And yeah, your pretty well onto it with finding a speedo and making it fit the face from your mechanical one.

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8 hours ago, Raizer said:

You've likely already figured out how to get a signal, but an Altezza speedo drive should fit straight in to the W57.

And yeah, your pretty well onto it with finding a speedo and making it fit the face from your mechanical one.

 

Or could i make a stepper motor work and make it fit into the back of the cable drive?

 

970E050B-DE36-465D-83C0-0C62A5047290.png

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If you have a set of verniers and some drawing skills i'm positive someone here could print you the parts needed to adapt a stepper to ya factory input.

The problem is that you are still stuck with a relatively inaccurate potentially bouncy speedo mechanism. 

People should correct me if im wrong here but im sure even the guts from a tachometer could be installed behind ya factory cluster and fed pulses from the link to display speed 100% accurately.

Id just hotglue the guts in there and smugface 

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2 hours ago, flyingbrick said:

 

People should correct me if im wrong here but im sure even the guts from a tachometer could be installed behind ya factory cluster and fed pulses from the link to display speed 100% accurately.

Id just hotglue the guts in there and smugface 

That's what I did. You just lose the odo.

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would i need to keep odo for a wof?

or i was looking at this? 

frequency to voltage converter  with a dc motor into the back 

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28 minutes ago, toy-mota said:

would i need to keep odo for a wof?

or i was looking at this? 

frequency to voltage converter  with a dc motor into the back 

I've never had any problems with getting wofs. It's been like that for at least 4 years. You can buy speedos that take a pwm input and you get an odo. I think they are a few $100. I only used a tacho because I was looking for the cheapest possible solution, because racecar.

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I fitted an adaptor from a GX81 with an auto box to my T50. Maybe it will fit a W series. It just screwed into the spot where the cable normally goes, and spits out the relevant signal. $20 or so from pick a part. I am using a Stack ST3800 series speedo.

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Different gear on drivers should still be available new via Toyota and it sounds like you need a toyota 90° adapter to fix the sharp turn which come on most old auto boxes (will grab a photo when I have my car on hoist later today)

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