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Old 06-16-2018, 07:31 PM   #1
michael a
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Default Tachometer for my model A

Can I use a 12-volt tack with a 6 to 12 volt Step Up regulator

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Old 06-17-2018, 11:19 PM   #2
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Default Re: Tachometer for my model A

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Can I use a 12-volt tack with a 6 to 12 volt Step Up regulator

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Yes on some. No on some. Try it.
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Old 06-18-2018, 12:16 AM   #3
Bill G
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Default Re: Tachometer for my model A

I recently bought and returned an electronic voltmeter from Harbor Freight that was supposed to be able to register engine RPM. Supposedly, either from clipping the probe to the coil or using the coil wire pick-up. It did not work. It just registered random numbers on the display. I took it back and claimed it was defective. They graciously exchanged it. The second one did the same thing, so I took it back and did not ask for another one.

I don't know why it would not work, but perhaps because it needed 12-volt power instead of 6-volt.
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Old 06-18-2018, 01:03 AM   #4
Mike V. Florida
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Default Re: Tachometer for my model A

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Originally Posted by Magicbox51 View Post
I recently bought and returned an electronic voltmeter from Harbor Freight that was supposed to be able to register engine RPM. Supposedly, either from clipping the probe to the coil or using the coil wire pick-up. It did not work. It just registered random numbers on the display. I took it back and claimed it was defective. They graciously exchanged it. The second one did the same thing, so I took it back and did not ask for another one.

I don't know why it would not work, but perhaps because it needed 12-volt power instead of 6-volt.

Too much noise from the unshielded ignition system for digital meters, especially inexpensive ones, to work. This is why analog meters with a needle are recommended for the Model A.
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Old 06-18-2018, 08:50 AM   #5
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Default Re: Tachometer for my model A

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Too much noise from the unshielded ignition system for digital meters, especially inexpensive ones, to work. This is why analog meters with a needle are recommended for the Model A.
Ditto
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Old 06-18-2018, 09:42 AM   #6
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Default Re: Tachometer for my model A

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I'm an analog guy in a digital world. So is the A.
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Old 06-18-2018, 10:10 AM   #7
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Default Re: Tachometer for my model A

Quote:
Originally Posted by michael a View Post
Can I use a 12-volt tack with a 6 to 12 volt Step Up regulator

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Unless there's some reason you want 12 volt, this place sells 6 volt, + ground, 4 cyl tachs for $125

http://www.westach.com/

(Disclaimer: This post is only information, not recommendation. I have not done business with them so you're on your own there.)
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Old 06-18-2018, 11:03 AM   #8
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Default Re: Tachometer for my model A

I use a "tiny tach". Simple to hook up and works. I have a 6 volt system.
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Old 06-18-2018, 11:31 AM   #9
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Default Re: Tachometer for my model A

I use this model from Westech.com Works well.
Model: 2CT32-6V
Price: $124.65
Tachometer 3,500 RPM, 2" round, std pt ign, 2 imp/rev, 6 volt pos or neg grd ( 4 cyl )
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Old 06-18-2018, 12:47 PM   #10
Willie Krash
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Default Re: Tachometer for my model A

My ears are still working pretty well so I live in a tach free world.
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Old 06-18-2018, 01:02 PM   #11
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Default Re: Tachometer for my model A

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Originally Posted by wmws View Post
I use this model from Westech.com Works well.
Model: 2CT32-6V
Price: $124.65
Tachometer 3,500 RPM, 2" round, std pt ign, 2 imp/rev, 6 volt pos or neg grd ( 4 cyl )
I think that should be Westach.com
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Old 06-18-2018, 06:59 PM   #12
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Default Re: Tachometer for my model A

Quote:
Originally Posted by wmws View Post
I use this model from Westech.com Works well.
Model: 2CT32-6V
Price: $124.65
Tachometer 3,500 RPM, 2" round, std pt ign, 2 imp/rev, 6 volt pos or neg grd ( 4 cyl )
I am using the same one and it works well.
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Old 06-18-2018, 07:46 PM   #13
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Default Re: Tachometer for my model A

This is a pic of a Westach in a model A.
Attached Images
File Type: jpeg Westach_Buzztach.jpeg (89.7 KB, 419 views)
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Old 06-18-2018, 10:21 PM   #14
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Default Re: Tachometer for my model A

Red line 7200??
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Old 06-18-2018, 10:25 PM   #15
Pete
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Default Re: Tachometer for my model A

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Red line 7200??
Actually it was 6500. I never bothered to set the red pointer.
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Old 06-19-2018, 08:06 AM   #16
wmws
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Default Re: Tachometer for my model A

Yes Y-Blockhead your right. Here is the web address.
[url]www.westach.com
The tac shown in post 13 is not the same one I have.
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Old 06-19-2018, 09:03 AM   #17
BILL WILLIAMSON
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Default Re: Tachometer for my model A

Bill Jones has a SMALL LED, rectangular tach, that sticks on his dash rail. It has its' OWN battery & I "think", a skinny wire, that just winds around the coil wire. You notice,I use a LOTS of QUOTATION MARKS, when I'm NOT SURE of stuff--LOL---Wouldn't EVER mean to MIS-LEAD someone.
Not "SURE" of the BRAND name???---MOSTLY, I just recommend stuff that has worked for me, PERSONALLY, in my SORID MECHANICAL BACKGROUND. "Sometimes" something I lurned while workin' on a GOGOMOBILE, "might" apply to a Model A.
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Old 06-19-2018, 03:26 PM   #18
Y-Blockhead
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Default Re: Tachometer for my model A

Bill, you ever see the videos on this Gogomobile with a 'Radial' engine. pretty crazy

https://youtu.be/f2V7B7-gdRA
https://youtu.be/Xk8d-bMhViM
https://youtu.be/luvkcP0mkgA

Sorry for the detour...

Last edited by Y-Blockhead; 06-19-2018 at 03:34 PM.
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Old 06-19-2018, 06:21 PM   #19
Tom Endy
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Default Re: Tachometer for my model A

The Westech 6-volt model 2CT32-6V looks interesting. Could some of you who have installed this device post some descriptions on how you mounted it and hooked it up eclectically in a Model A.


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Old 06-19-2018, 07:00 PM   #20
31 Woody
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Default Re: Tachometer for my model A

Not trying to be critical or funny, but why would I want a tach in a Model A? I have one in my Mustang Cobra, which does redline at 7,000...been there many times in fact. But the Model A just does not make sense to push and the actual RPMs do not seem important. Is this a curiousity being satisfied?
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