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Discussion Starter #1
I need some help. I have been trying to find out how many teeth my driven speedo gear should have. These are the numbers:
tire diameter:25.10
Revolutions per mile:803.5
axel ratio:3.36
dive teeth:5
tire size:p235/60R14
Transmission: Turbo 400

My calculation is: 5x3.36x 803.5 divided by 1001 =13.4

the gear holder is a 40 series it has the making on the outside and the gear that was in it was a yellow 41 tooth gear.
(I have a photo of the drive teeth but I get invalid file when I try to up load.)

What am I missing

Thanks,
Dean
 

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Premium Member
Joined
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153 Posts
Discussion Starter #2
I need some help. I have been trying to find out how many teeth my driven speedo gear should have. These are the numbers:
tire diameter:25.10
Revolutions per mile:803.5
axel ratio:3.36
dive teeth:5
tire size:p235/60R14
Transmission: Turbo 400

My calculation is: 5x3.36x 803.5 divided by 1001 =13.4

the gear holder is a 40 series it has the making on the outside and the gear that was in it was a yellow 41 tooth gear.
(I have a photo of the drive teeth but I get invalid file when I try to up load.)

What am I missing

Thanks,
Dean
Correction the Drive gear has 16 teeth. that gives me a driven gear of 43 teeth.
 
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