Quote:
Originally Posted by Ian///M
The 1M gives V on the dash as a reading & so does P3. Original wheels & tyres
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Yea... but on a 1M or M3... that digital speedo uses the "buffered" value which is +5% just like the signal the speedo diaL reads.
On my car I have it coded so that my digital speedo (V= kph) reads ACTUAL vehicle speed while the speedo dial reports the +5% speed signal.
IF I wanted to you can recode the speedo dial(or digital M3 speedo, "V = kph") to read either "actual" or "buffered" values.
THAT is why your "V = 105" while your GPS says you really traveling at 100.
