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  • 5 Post By Hotrod46
  • 1 Post By johnboy
  • 1 Post By Mike P
  • 1 Post By Scrubline
  • 1 Post By DennyW
  • 2 Post By Mike P

Thread: Pulse generator
          
   
   

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  1. #1
    Scrubline's Avatar
    Scrubline is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: '23 T bucket
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    Pulse generator

     



    Have you ever used a pulse generator when converting to an electronic speedometer? I've always used mechanical with the cable, but I'm using a Classic Instruments vintage looking electrical speedo in my t bucket. Apparently, this gizmo converts a pulse from my turbo 400 via wire to the gauge to establish MPH. Do these things actually work?
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  2. #2
    Hotrod46's Avatar
    Hotrod46 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 1946 Ford Coupe, 1962 Austin Healey 3000
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    Yes they do work. I have used them on 3 different VDO speedometers. Still have one on my 46 coupe that's been on it for over 20 years.

    FWIW - You'll like the electronic speedo. I usually take a GPS unit out on the road to calibrate one. Now there is an app for a smart phone that provides a GPS speedo. Look for one. It helps to get it just right.

    On my newest project, I skipped the trans drive speedo altogether and went with a GPS driven unit. No cable to the trans and no calibration. I'm anxious to see how well it works.
    Last edited by Hotrod46; 02-08-2019 at 11:33 AM.
    Mike

    I seldom do anything within the scope of logical reason and calculated cost/benefit, etc-
    I'm following my pass​ion

  3. #3
    Scrubline's Avatar
    Scrubline is offline CHR Member Visit my Photo Gallery
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    Thanks, I've heard about those GPS units. If this pulse generator doesn't do the job, I'll try the GPS unit.

  4. #4
    34_40's Avatar
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    Car Year, Make, Model: 34 Ford 3W Coupe Replica
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    I went with the GPS speedo some 6 or 7 years ago. LOVE IT!

    The only drawback I've found is when you let her sit for weeks / months and then when you want to go for a ride - the speedo hasn't found the satellites and won't register for a bit. But then it mysteriously starts working again. And when going thru tunnels, you may lose signals.

  5. #5
    johnboy is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: `47 Ford sedan, A.C.Cobra replica.
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    Quote Originally Posted by 34_40 View Post
    And when going thru tunnels, you may lose signals.
    ...and when going under train tracks in Chicago...

    And when you come out from under it takes a while to reconnect with the satellite.
    You keep going 'round and 'round in ever increasing circles.
    Extremely frustrating...and people toot and wave at you...but they don't use their whole hand to wave...

    L O S T = Lots Of Silly Tourists.
    34_40 likes this.
    johnboy
    Mountain man.
    Some mistakes are too much fun to be made only once.

    '47 Ford sedan. 350 -- 350, Jaguar irs + ifs.
    '49 Morris Minor. Datsun 1500cc, 5sp manual, Marina front axle, Nissan rear axle.
    '51 Ford school bus. Chev 400 ci Vortec 5 sp manual + Gearvendors 2sp, 2000 Chev lwb dually chassis and axles.
    '64 A.C. Cobra replica. Ford 429, C6 auto, Torana ifs, Jaguar irs.

  6. #6
    Mike P's Avatar
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    Car Year, Make, Model: 57 Plymouth, 37 Dodge PU, 83 El Camino
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    If you type type in speedometer transducer to a search engine you come up with a lot more options.

    I've got two vehicles with electronic speedometers now and love them, especially when it comes time to calibrate them.

    I actually started using the transducers years ago when you couldn't find aftermarket cruise controls that didn't require a VSS (vehicle speed sensor) or hanging those damn magnets on the drive shaft.

    Never had a problem with the transducers on the half dozen or so vehicles I've installed them on.


    .
    Dave Severson likes this.
    I've NEVER seen a car come from the factory that couldn't be improved.....

  7. #7
    Scrubline's Avatar
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    Damn, Mike P, you were up at 3am your time on the computer.....I don't have a pulse that early in the morning.
    Last edited by Scrubline; 02-09-2019 at 07:27 AM.
    randyr likes this.

  8. #8
    DennyW is offline CHR Member Visit my Photo Gallery
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    Us older guys have no time limits...
    Mike P likes this.

  9. #9
    Mike P's Avatar
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    Old age sucks. Anymore I'm waking up about the time I used to come rolling in


    .
    TOW'D and johnboy like this.
    I've NEVER seen a car come from the factory that couldn't be improved.....

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