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Old 05-27-2019, 07:25 PM   #1 (permalink)
FiatDiffuser
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Join Date: May 2019
Location: Lake Forest, CA
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Diffuser for the Fiat 500e!

Hi All, there is finally a custom made diffuser that fits the 500e. In a continuous effort to make the world a better place, I am glad to be supporting people getting the most they can with their EV cars. We need more EV cars for a better environment. I have designed a diffuser to get more miles with the Fiat 500e. The more miles EV cars will do, the less ICE (internal combustion engine) cars will do, the better the world will be. This picture is from my 500e. I've put more than 8000 miles on this prototype and counting, really robust design, maintenance free.

For those who wonders, I have been recording the performance of my Fiat with and without the diffuser installed for the last 6 months. I constantly repeat the same 15 miles commute day after day, which includes about 2/3 of freeway, or 10 miles. When leaving in the morning, the battery is always at 100%. I have also adjusted the tire pressure to be at the same level day after day. I always put the cruise control at 65mph or 70mph on the freeway, so that all measurements can be compared together. However, there are external factors that I cannot control, such as external temperature, rain, humidity, etc., which can significantly influence the energy usage of the car. I have discarded the data collected on rainy days when the road is wet as the effect of water on the road can't be reliably assessed, and for the other days when it's dry, which we get a lot here in Socal, I have plotted the data as a function of external temperature.

After collecting the data over a period of 6 months, I have noticed an upward trend of 0.223 mile per kwh at 65mph freeway speed with the diffuser installed, or just about a 5.1% increase, and 6.4% increase at 70mph.

Let me know what you think!

Thanks for sharing!


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The Following 4 Users Say Thank You to FiatDiffuser For This Useful Post:
aerohead (09-14-2019), BamZipPow (09-19-2019), gil (10-16-2019), MetroMPG (09-13-2019)