SnakeMedic
Member
Been thinking about throwing in some 4.10s in my Cobra, but since I have no records of mods on this car I am not sure if it was changed already.
Found a chart that says at 65 mph in 5th gear what RPM I should be turning for certain gears but my problem is that I know my speedo is off, which leads me to believe it might already be geared. The faster I go, the more it is off and at my perceived 75 mph is when I am actually going 65. Tires/wheels are stock size, so I know that is not the issue.
Anyone have any insight on how to figure this out? Can I just base it off of RPM and being in 5th gear?
I know 3.55s turn 2k at 65 mph in 5th gear, so despite not knowing the real speed I could conceivably just use RPM...... I think....
Any help is appreciated. Though I have owned many Mustangs, I never geared any of them so this is new to me. :undecided:
Found a chart that says at 65 mph in 5th gear what RPM I should be turning for certain gears but my problem is that I know my speedo is off, which leads me to believe it might already be geared. The faster I go, the more it is off and at my perceived 75 mph is when I am actually going 65. Tires/wheels are stock size, so I know that is not the issue.
Anyone have any insight on how to figure this out? Can I just base it off of RPM and being in 5th gear?
I know 3.55s turn 2k at 65 mph in 5th gear, so despite not knowing the real speed I could conceivably just use RPM...... I think....
Any help is appreciated. Though I have owned many Mustangs, I never geared any of them so this is new to me. :undecided: