Quote:
Originally Posted by gk_ghig14
Picked up some new wheels and tires yesterday which dropped a few more pounds of rotational mass, and the new tires are larger in diameter and stated to have lrr technology by Yokohama. And due to the offset of the wheels, I'd say 98% of the wheel/tire combo is tucked in behind the body work
Also should be getting my vehicle specific tunes within the next 5 days, so I'll be installing the fuel economy tune in hopes of squeezing out 1-2 more mpg in combo with the new wheels and tires
Will also be doing a grille block. Zip ties are cheap enough that I can do it on the outside for Monday-Thursday then take it off for Friday night car meets
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I spend some time over at Mustang Evolution and Insight Central, and the opinion I have formed is that ECO modes aren't always the best for economy, and PERFORMANCE tunes often help fuel economy.
In Mustangs, people on the forum often just drive the same. They put the tune on, and nothing else changes- maybe they have more fun. Of course there is ZERO testing done whatsoever, but many people note it. True, this is not a fact or established empirically, but often the only difference people notice is more miles per gallon/tank, and improved performance.
People who actively and carefully drive Insights (gen 2s), often mention they get better mileage when driving in Sport mode rather than eco. I think about how the majority of people drive an eco minded car- Prii, Insights, so on. They drive it like an ON/OFF switch, and just think it will get great mileage because they bought that car. So smashing down the pedal in Performance mode vs Eco mode will most likely show better mileage in Eco, but I imagine whatever is done to the computer will help the overall performance (read: more efficient) in Sport mode if driven appropriately.
I am not saying that the fuel economy tune is bad, or to get the most aggressive racing tune, but just offering my experience on why it may be a good idea to try different tunes, and maybe do some testing for the rest of us
