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FJR Motorcycle Forums
FJR Specific Discussion
US ECU in a rest-of-the-world 2009?
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<blockquote data-quote="Mau MaGau" data-source="post: 1465432" data-attributes="member: 99855"><p>So the calibrated UK speedo remains accurate after the ECU change, suggesting that all ECUs report the same speed to the dash. </p><p></p><p>And a very unscientific method suggests that the calibration of speed is purely done by the speedo's backplate. I've compared a US speedo to a calibrated UK one, and as you can see the marks differ slightly. Most noticeable if you look at 130mph - it's left of top-dead-centre on the US speedo, but slightly to the right on mine.</p><p></p><p>So if you're looking for a more accurate speedo, you could either buy a whole US dash, or get a new backplate printed out (which is how the police over here do their calibration, as you can see in the third image).</p></blockquote><p></p>
[QUOTE="Mau MaGau, post: 1465432, member: 99855"] So the calibrated UK speedo remains accurate after the ECU change, suggesting that all ECUs report the same speed to the dash. And a very unscientific method suggests that the calibration of speed is purely done by the speedo's backplate. I've compared a US speedo to a calibrated UK one, and as you can see the marks differ slightly. Most noticeable if you look at 130mph - it's left of top-dead-centre on the US speedo, but slightly to the right on mine. So if you're looking for a more accurate speedo, you could either buy a whole US dash, or get a new backplate printed out (which is how the police over here do their calibration, as you can see in the third image). [/QUOTE]
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FJR Motorcycle Forums
FJR Specific Discussion
US ECU in a rest-of-the-world 2009?
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