Realize he's summing up thousands of dyno tunes on thousands of bikes of every make and model and modifications etc.įor a real example of experience you're asking about: On one of my street bikes, 2009 Yamaha FZ1, my MPG went from 30-32mpg to 35-37mpg with hypermiling on the freeway up near 38-40mpg, after Nels flashed the ECU. V twins are the worst, and benefit the most from a tune, you should see the difference in cruisers and ducati's, it's hard to believe people ride them untuned, that's how bad they can be. every bikes different, i dont know what mpg the new zx10rs are getting post flash. some bikes, go from 80hp to 82hp, but below peak it picked up 10hp along the power curve. it may sound weird off but some bikes will go from 80hp to 100hp, with nothing wrong, just needed tuning. 12% vs 20% throttle to maintain cruising speed is an example of the difference in post tune vs pre tune, some bikes get more some bikes get less. fuel economy is tied to your wrist as much as your tune. You may fall into the trap that many do which is, "i got my ecu flashed and now my fuel economy went down" when in reality, your ecu got flashed and you're riding more aggressively because the bikes so much more fun to ride. Getting it tuned and running a happy air fuel ratio is much better for the bike and will increase your MPG because your engine is performing it's internal combustion more efficiently. It will be improved though because, from the factory, the fueling is off due to EPA regulations. No, you'll probably not get 20% better fueling. Yes, some bikes get upwards of 20% better fuel economy. You're not quite comprehending what's being said. I've been told this doesn't come off well but, pre-emptive warning, i'm not trying to be a dick.
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