Quote:
Originally Posted by DreamSign
Yes, the difference in sidewall makes the overall measurement the same.
The issue remains, the speedo is off by 8%+ and that throws off mileage and makes using the odometer for navigation more difficult.
My other 4 cars are about 100% accurate.
So there is no speedo gear that is easily changed or something like that?
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I would bet your odometer is still very accurate, years ago automakers got in trouble for that as warranties would expire sooner and gas mileage would look higher. If you really want to find out if something can be done, try contacting North Hollywood Speedometer or Palo Alto Speedometer. If something can be done, I'm sure it won't be cheap!
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Current: 2022 718 Cayman GT4, PDK bone stock (the dark side).
Former: 2003 S, 3.6 LN Nickies, ARP rod bolts, under-drive pulley, Fabspeed sport headers, Softronic tune, 987 airbox 987 motor mount, Function-First Sport motor mount insert, Ben's short shifter, Nine8Six projector headlights & center caps, ROW M030, stainless flexible brake lines, B-K rollbar extension & fire extinguisher mount, hardtop
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