Re: Is it possible to run two Tachs at the same time?
[Re: JohnRR]
#106085
08/16/08 08:51 PM
08/16/08 08:51 PM
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Joined: Jan 2003
Posts: 5,791 Hamilton, Ontario Canada
Magnum
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Posts: 5,791
Hamilton, Ontario Canada
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I've seen factory and aftermarket tach running together many times. 2 aftermarket ones can't see why not but I've never seen it.
Do you have a timing light with a tach?
69 Super Bee, 93 Mustang LX, 04 Allure Super
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Re: Is it possible to run two Tachs at the same time?
[Re: stan1970]
#106087
08/16/08 10:46 PM
08/16/08 10:46 PM
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Joined: Feb 2003
Posts: 4,808 Castlegar, BC, Canada
That AMC Guy
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Castlegar, BC, Canada
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Tone Generators are great for this kind of thing. Every pulse sensing tach can be re-set correctly using a pulse generator. Believe it or not, anybody with an audio editing program and a line out jack can create their own tone generator Very helpful when recalibrating old tachs.
Bloody Mary, Full of Vodka, Blessed art thou among cocktails....
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Re: Is it possible to run two Tachs at the same time?
[Re: That AMC Guy]
#106089
08/16/08 11:01 PM
08/16/08 11:01 PM
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Anonymous
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Anonymous
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Quote:
Tone Generators are great for this kind of thing. Every pulse sensing tach can be re-set correctly using a pulse generator.
Believe it or not, anybody with an audio editing program and a line out jack can create their own tone generator Very helpful when recalibrating old tachs.
(Ahem...) My age is showing. In the mid '60's I build an Allied Radio "Knight kit" tach, and they had you calibrate it using a high value resistor off the AC line as a pulse source. Nowadays, that would be a gigantic liability.
I would suspect that if you hooked ENOUGH tachs up all the same time, you'll eventally load down the ignition, but I doubt two of 'em will do it
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Re: Is it possible to run two Tachs at the same time?
#106090
08/16/08 11:05 PM
08/16/08 11:05 PM
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Joined: Jan 2003
Posts: 70,126 Here
DirectSubjection
Tacohead. The First and Only
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Tacohead. The First and Only
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Posts: 70,126
Here
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I have one in my dash for driving and one under the hood of my Duster for tuning, both wired to my MSD's tach terminal.
Ride eternal, shiny and chrome
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Re: Is it possible to run two Tachs at the same time?
[Re: stan1970]
#106091
08/17/08 01:14 PM
08/17/08 01:14 PM
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Joined: Jan 2003
Posts: 2,874 Upstate, NY
sixpack4spd
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Quote:
When I take off in the car (4speed w/ 4.10 gears in the rear), it feels like it's revving very high and I have to shift, but generally the tach is showing less than 2000 RPMs.
What does the tach say when you are going 70MPH in 4th gear???
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