Haltech and stock speedo gear
#1
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Haltech and stock speedo gear
I have an 87 non-tubo and am going to running haltech with a digital dash. I know the speedo is cable driven but is there any way to modify the speedo gear so that haltech can receive an analog pulse that it can interpret as speed?
I think I've heard of people modifying them for other cars, anyone know of any write ups?
While searching I found this but nothing about using a hall effect or inductive sensor.
https://www.rx7club.com/1st-generati.../#post11403825
I'm thinking of taking the speedo gear down to the local machine shop and and seeing what they can do.
I'm pretty sure my car doesn't have ABS so I can't tap into that system.
Is there an easy way to add an ABS ring gear and sensor?
Could I possibly use an electronic speedo gear off a newer car such as a rx8 or miata?
I think I've heard of people modifying them for other cars, anyone know of any write ups?
While searching I found this but nothing about using a hall effect or inductive sensor.
https://www.rx7club.com/1st-generati.../#post11403825
I'm thinking of taking the speedo gear down to the local machine shop and and seeing what they can do.
I'm pretty sure my car doesn't have ABS so I can't tap into that system.
Is there an easy way to add an ABS ring gear and sensor?
Could I possibly use an electronic speedo gear off a newer car such as a rx8 or miata?
#2
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The FC cluster outputs a pulsed VSS for the power steering and cruise control. I believe it's a GN/RD wire which can be tagged under the drivers side dash where the cruise module is/would be.
To be fair, I haven't gotten this working with my Adaptronic, but I know others have gotten it working on Megasquirt. There is a thread detailing all of this.
To be fair, I haven't gotten this working with my Adaptronic, but I know others have gotten it working on Megasquirt. There is a thread detailing all of this.
Last edited by DC5Daniel; 07-10-19 at 03:25 PM.
#3
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the stock system is trans-> speedo gear thingee-> cable-> speedo-> vss output to ps and cruise control
if you want to ditch the cable the FD speedo drive is just the VSS. it'll go right into a turbo trans, and should work with the NA also.
someone, like dakota digital probably also makes a box that outputs a VSS from the cable as well
if you want to ditch the cable the FD speedo drive is just the VSS. it'll go right into a turbo trans, and should work with the NA also.
someone, like dakota digital probably also makes a box that outputs a VSS from the cable as well
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Sweet thanks guys that's what I needed! I'll grab a speedo gear off an FD.
I am ditching the stock cluster and I am going to use a tablet. Haltech has a OBD2 adapter that I can use for aftermarket Dash cluster apps like torque pro.
Thanks again everyone!
I am ditching the stock cluster and I am going to use a tablet. Haltech has a OBD2 adapter that I can use for aftermarket Dash cluster apps like torque pro.
Thanks again everyone!
#6
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Well, I've been looking and I can't seem to find an electronic speedo gear from an FD. Does anyone know where I can source one of these? Would one off a miata work too?
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#8
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Maybe this is also an option:
https://trail-gear.com/301447-1-kits...rical-vss.html
This is an adapter that you screw into the stock speedo drive where the cable normally goes.
https://trail-gear.com/301447-1-kits...rical-vss.html
This is an adapter that you screw into the stock speedo drive where the cable normally goes.
#9
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The FC cluster outputs a pulsed VSS for the power steering and cruise control. I believe it's a GN/RD wire which can be tagged under the drivers side dash where the cruise module is/would be.
To be fair, I haven't gotten this working with my Adaptronic, but I know others have gotten it working on Megasquirt. There is a thread detailing all of this.
To be fair, I haven't gotten this working with my Adaptronic, but I know others have gotten it working on Megasquirt. There is a thread detailing all of this.
Do you have a link to said thread?
I would like to maintain my factory cluster but have the speed readable by my Adaptronic.
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