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Spedo way off


Poseidon

Poseidon

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Lesage WV
Vehicle Year
1996
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Ford
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Mighty 2.3
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Automatic
My credo
If it ain't broke,you're not trying
Hi all i have a 1996 2.3 auto ranger and my speedometer is about 17 mph off. It has 235 75 15s i know it could have came with 14s. But i dont think it would be off by 17 mph just because of the tire size or am i wrong?
 


adsm08

adsm08

Senior Master Grease Monkey
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Dillsburg PA
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31X10.50X15
Is it a consistent flat 17 MPH across the whole speed spectrum, or is it 17 MPH off at say 55 or 60 MPH?

Speedometer errors caused by tire size or gear ratio changes are percentage errors, so the faster you go the greater the error in terms of MPH.
 
Poseidon

Poseidon

New Member
Joined
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Messages
2
Reaction score
0
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0
Location
Lesage WV
Vehicle Year
1996
Make / Model
Ford
Engine Size
Mighty 2.3
Transmission
Automatic
My credo
If it ain't broke,you're not trying
as far as ive seen its never less than 15 off and i haven't seen it more than 17 off
 
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