When I bought my project Integra LS, it came with good tires on the stock alloy 14″ wheels which I have no desire to replace right away. However the PO put 185/65R14s on it instead of the called for on the door jam sticker 185/60R14s for whatever reason. This taller aspect ratio tire is throwing my speedo off right at 3 mph which also runs the miles up a little faster. Speedo at 80 mph car actually only going roughly 77 mph. This verified by my Garmin GPS. This is also true at slower speeds across the board.
Is there an easy way to re-calibrate the speedo (VSS?), playing with it till it is reading correctly? Then if I decide to upgrade my wheels to 15 or 16s in the future, calibrate the speedo to read correctly with whatever tires I end up with?
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