Tach install
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Elder User
Joined: Aug 2000
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From: Burke VA
Tach install
I'm installing a VDO tach on my 78 w/a 351W. On the negative side of the coil, there's a green wire that runs to the trucks brain box. Do I splice my tach onto this wire?
Jayson
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Joined: Sep 2001
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Tach install
That green wire on the negative side of the coil is the usual place. You must follow the directions that came with the tach.
That "brain box" doesn't have much of a brain, it is the ignition module.
That "brain box" doesn't have much of a brain, it is the ignition module.
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Joined: Aug 2002
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From: Eau claire united states
Tach install
What I do is using a connector and hit right on the coil if have the plug on it I just rap the wire around the post and snap the plug back on the coil. Worked great on my 79F150
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Elder User
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From: Burke VA
Tach install
All,
Intalled the tach but I'm not sure if it is operating properly. Says I Idle around 800 RPM which sounds right. I have not changed my driving style, the tach tells me I shift between 2-3 grand. At what the tach says is three grand really sounds like I'm pushing it, it wont rev much higher. I thought a V8 should redline around 5 grand (my mustang redlines at 5500) Is this something to do w/the trans?
Mine is a 351W witha 3 speed manual trans
Intalled the tach but I'm not sure if it is operating properly. Says I Idle around 800 RPM which sounds right. I have not changed my driving style, the tach tells me I shift between 2-3 grand. At what the tach says is three grand really sounds like I'm pushing it, it wont rev much higher. I thought a V8 should redline around 5 grand (my mustang redlines at 5500) Is this something to do w/the trans?
Mine is a 351W witha 3 speed manual trans
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Elder User
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From: Burke VA
Tach install
The only setting I saw on it was a 4-6-8. I set it to 8. Anything I'm missing here?
Jay
Jay
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