MotoGP » Marc Marquez: 5 years in 300 photos

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This stuff about ECU mapping really is nonsense. If you've ever worked with race engines you will know that the ECU is mapped pretty much to the optimum for the engine, you wouldn't get much extra out of it just by tweaking the ECU. There are a lot of myths about ECU mapping that originate mostly from road cars. Road cars (even naturally aspirated ones) can get a reasonable boost from a remap for several reasons. They have to be able to run on pretty awful fuel. They have to run reasonably well when worn and without regular servicing. They are built to relatively loose tolerances. Such things as fuel economy and ease of starting are much more important than outright power. Moto2 bikes aren't built like road cars so you can't just whip out a dozen extra horses with a quick remap.

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