Anyone know the revs/mile for the original speedometer?
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Car: 1986 Chevy Camaro
Engine: LB8
Transmission: 700r4
Anyone know the revs/mile for the original speedometer?
Hi,
I've got a 1986 camaro with the original 85mph speedometer.
I'm working on the transmission, and it turns out the drive gear is missing.... so I can't count the number of teeth it used to have
So I did some calculations:
I have a 41 tooth driven gear, 3.42 rear axle ratio and 26" tires.
It turns out that the only driven gear that would work with my current setup is a 15.... but in order for that gear combo to be accurate, the speedomter would have to register miles at 1 mile per 971.45 cable revolutions.
...does that sound right? I thought most speedometers registered at about 1000 revolutions per mile.
If so, then the best combination I of gears could use would be a 45 and a 17.
Anyone know what the correct revs/mile is for these speedometers? 970? 1000? something else?
Thanks in advance for whoever knows this one. (or whoever knows where to look to read it off of the part)
-Masked
I've got a 1986 camaro with the original 85mph speedometer.
I'm working on the transmission, and it turns out the drive gear is missing.... so I can't count the number of teeth it used to have
So I did some calculations:
I have a 41 tooth driven gear, 3.42 rear axle ratio and 26" tires.
It turns out that the only driven gear that would work with my current setup is a 15.... but in order for that gear combo to be accurate, the speedomter would have to register miles at 1 mile per 971.45 cable revolutions.
...does that sound right? I thought most speedometers registered at about 1000 revolutions per mile.
If so, then the best combination I of gears could use would be a 45 and a 17.
Anyone know what the correct revs/mile is for these speedometers? 970? 1000? something else?
Thanks in advance for whoever knows this one. (or whoever knows where to look to read it off of the part)
-Masked
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Hotrodboba400
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