VSS input to 808

Converting To Delco ECU From Carby Or Other Injection Systems
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Early 56 EFI
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VSS input to 808

Post by Early 56 EFI »

Has anybody tried a Hall effect sensor mounted close to the yoke out of the back of Aussie M20 gearbox to generate some pulses for a VSS input. I can't see why it shouldn't work if the mounting is solid enough.
Any thoughts?
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Re: VSS input to 808

Post by vlad01 »

Yeah should work fine as long as the hall sensor spits out a 12V square wave.
I'm the director of VSH (Vlad's Spec Holden), because HSV were doing it ass about.
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Re: VSS input to 808

Post by Early 56 EFI »

vlad01 wrote:Yeah should work fine as long as the hall sensor spits out a 12V square wave.
Thanks gain
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Re: VSS input to 808

Post by Charlescrown »

The speed sensor sounds like a good idea. You could machine up a disc and either press it over the slip joint or weld it. I think that's what your getting at. I bought an off the shelf inline adapter for my speedo cable. I have seen an inline unit fitted into the speedo cable. It was done by a local instrument repairer but that was some years ago.
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Early 56 EFI
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Re: VSS input to 808

Post by Early 56 EFI »

Charlescrown wrote:The speed sensor sounds like a good idea. You could machine up a disc and either press it over the slip joint or weld it. I think that's what your getting at. I bought an off the shelf inline adapter for my speedo cable. I have seen an inline unit fitted into the speedo cable. It was done by a local instrument repairer but that was some years ago.
Yes, did think of a disc like you mention but I cannot see why it shouldn't work straight off the yoke. That should give you 4 pulses per rev. May need to use an OpAmp to clean the waveform up. Think I will just experiment with it.
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Re: VSS input to 808

Post by Charlescrown »

I hadn't thought of using the existing parts of the uni joint. I'm interested to see how it works out. Post a pic when you have it setup along with a component list.
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Re: VSS input to 808

Post by Early 56 EFI »

Charlescrown wrote:I hadn't thought of using the existing parts of the uni joint. I'm interested to see how it works out. Post a pic when you have it setup along with a component list.
Will do
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