hillbillybubba
06-26-2017, 11:39 AM
2011 825i with 6000 miles.
I always knew this thing did decent with fuel economy, despite driving in the WV hills. But after changing out the stock weights/spring for the 855D parts, to lower cruise RPMs by roughly 1000, I'm even more amazed! And it's sooooooo quiet now! :BG:
We weren't driving to conserve fuel, either(probably quite the opposite since we were testing a new mod)... just mindlessly driving in the mountains. Constant elevation changes of between 1800-3000 feet, as you can see in the attached image of my tracking app. Average speed was around 14-15 mph. I imagine on level ground, it would get 32-35 mpg. With road tires inflated correctly, maybe even 40!
I always knew this thing did decent with fuel economy, despite driving in the WV hills. But after changing out the stock weights/spring for the 855D parts, to lower cruise RPMs by roughly 1000, I'm even more amazed! And it's sooooooo quiet now! :BG:
We weren't driving to conserve fuel, either(probably quite the opposite since we were testing a new mod)... just mindlessly driving in the mountains. Constant elevation changes of between 1800-3000 feet, as you can see in the attached image of my tracking app. Average speed was around 14-15 mph. I imagine on level ground, it would get 32-35 mpg. With road tires inflated correctly, maybe even 40!