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FJR Motorcycle Forums
Technical & Mechanical Problems
Fuel Economy and Smoothness without Compromise
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<blockquote data-quote="extrememarine" data-source="post: 864268" data-attributes="member: 3568"><p>This is very interesting. And without a doubt, if I have some seriously complicated computer / electronic stuff to figure out, Jeff is definitely the first person I’d call.</p><p></p><p>Here is how I have addressed the performance / MPG balancing act on my bike.</p><p></p><p>I am running at PC-V on my ’09. I have installed a switch that allows switching between two maps. I did not purchase / use the Dynojet switch; I used a standard rocker switch from RadioShack and some light gage wire. There is no voltage, just a open / closed switch.</p><p></p><p>It opens up two map positions, viewed when you plug in a laptop to the PC-V. Switching is instant – you can watch it do it while it’s running and plugged in.</p><p></p><p>What I chose to do is put a zero map in one position, and the hybrid smoothness map in the other. On my last trip, I ran the zero map on the highway and pulled an average of 45.4mpg. Once off the slab and into the twisty stuff, I averaged 36.4mpg. Slab riding included mostly +10 over posted limit running 70-75mph. Twisty stuff is better measured in average RPM, which was mostly between 5-8k rpm’s</p><p></p><p>I’ve thought about playing with the mapping by gear option. Typically, I don’t use 5th gear much in the twisty stuff, so I could take and change the 5th gear map to an all zero map to mimic the OEM fuel map.</p><p></p><p>Maybe, once I drag Jeff to SE Ohio this summer, fuel mileage will be the last thing on his mind…</p></blockquote><p></p>
[QUOTE="extrememarine, post: 864268, member: 3568"] This is very interesting. And without a doubt, if I have some seriously complicated computer / electronic stuff to figure out, Jeff is definitely the first person I’d call. Here is how I have addressed the performance / MPG balancing act on my bike. I am running at PC-V on my ’09. I have installed a switch that allows switching between two maps. I did not purchase / use the Dynojet switch; I used a standard rocker switch from RadioShack and some light gage wire. There is no voltage, just a open / closed switch. It opens up two map positions, viewed when you plug in a laptop to the PC-V. Switching is instant – you can watch it do it while it’s running and plugged in. What I chose to do is put a zero map in one position, and the hybrid smoothness map in the other. On my last trip, I ran the zero map on the highway and pulled an average of 45.4mpg. Once off the slab and into the twisty stuff, I averaged 36.4mpg. Slab riding included mostly +10 over posted limit running 70-75mph. Twisty stuff is better measured in average RPM, which was mostly between 5-8k rpm’s I’ve thought about playing with the mapping by gear option. Typically, I don’t use 5th gear much in the twisty stuff, so I could take and change the 5th gear map to an all zero map to mimic the OEM fuel map. Maybe, once I drag Jeff to SE Ohio this summer, fuel mileage will be the last thing on his mind… [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Fuel Economy and Smoothness without Compromise
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