Im putting 4.30s in my cobra and was wondering what speedo gear I will need? Will I have to change the drive gear as well to make it a close calibration?
stang9
The other nice thing about a Speedcal is that you can fine-tune your speedo in something like 0.2% increments if you have access to a portable GPS/nav unit. For example, my speedo reads low at 40 mph and high at 70, so I split the difference.
Indicated Actual
40 42
70 68
Indicated Actual
40 42
70 68
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
