speedo reading high
Lead Driver
Joined: Apr 2002
Posts: 8,813
Likes: 13
From: Littleton, New Hampshire
Elder User
Joined: Jun 2010
Posts: 934
Likes: 2
From: Sterling, Virginia
I have a C4 tranny and I got the repo cable with the gear that was recommended by Sacramento Vintage Ford and my speedo reads 5mph slower than my acutal speed. I just keep that in mine when I'm driving, small detail as far as I'm concerned.
Laughing Gas
Joined: Dec 2007
Posts: 792
Likes: 3
From: Sandy Run SC
Check out transmissioncenter.net it gives a lot of info how to determine gears with rear end ratio and tire size. It may help or not, worth looking at.
Logistics Pro
Joined: May 2010
Posts: 3,793
Likes: 19
From: Austin
Hey Wisconsin,
If you don't get where you want by swapping out the
speedo gears - there is a different route I learned about in
trying to get our's to work. We've got a wireless programmable speedo -
It's pretty neat. You put whatever speedo gear you want in your trans &
you put the wireless sender unit in where the cable would go on the trans. & you go out to a highway with known distance markers. You punch the setup button & drive it two miles at 45 MPH or so & it calibrates itself & you get the right speed showing on your speedometer.
This was my first experience with these programmable speedos & it certainly worked like a champ. I got mine from Egauges.
Good luck over there.
Ben in Austin
1950 F1
If you don't get where you want by swapping out the
speedo gears - there is a different route I learned about in
trying to get our's to work. We've got a wireless programmable speedo -
It's pretty neat. You put whatever speedo gear you want in your trans &
you put the wireless sender unit in where the cable would go on the trans. & you go out to a highway with known distance markers. You punch the setup button & drive it two miles at 45 MPH or so & it calibrates itself & you get the right speed showing on your speedometer.
This was my first experience with these programmable speedos & it certainly worked like a champ. I got mine from Egauges.
Good luck over there.
Ben in Austin
1950 F1
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