LeftieBiker
Moderator
Posts: 17078
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Nice Efficiency Improvement

Sun Mar 21, 2021 11:45 am

Leftie, yep, my testing so far seems to show a small benefit around town, and hard to measure at highway speeds. Roll down does seem better, but I don't have the patience to do it scientifically. I do plan a "very" high speed test when it gets warmer (75mph) which I am hoping might yield .1 or so, but enjoying the wheels none the less. The good news is that I now have 16" rims free for the SV+ in a year or two when I need tires.
That was GerryAZ, not me.
Brilliant Silver 2021 Leaf SV40 W/ Pro Pilot & Protection
2009 Vectrix VX-1 W/18 Leaf modules, & 2 lithium E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

HerdingElectrons
Posts: 222
Joined: Sat Sep 08, 2018 3:20 pm
Delivery Date: 17 Sep 2018
Location: Central Coast, Ca

Re: Nice Efficiency Improvement

Sun Mar 21, 2021 12:17 pm

DougWantsALeaf wrote:
Sun Mar 21, 2021 11:36 am
As we have both a Leaf with 17" wheels and 16" narrower wheels, I confirm, the smaller wheels increase your efficiency 6-10%. It's very noticeable at 70mph. What rims did you use?
http://www.veloxwheels.com/wheels/mantra

I went with these wheels because they were offered through Costco & they had a promo + a bonus promo for buying a set of tires with the wheels. I ended up paying $480+tax for the set of wheels & $1033 OTD.

I typically drive 60mph on the freeway & only about 30% of my miles is freeway. I have an older Prius that I tend to use more longer hwy scenarios. I have intentionally created my life around a 5-25 mile radius so my driving is often(20-25K miles/yr) but highly local
2018 SL Pearl White 4.5/3.9; 5.0/4.6 with 205/65/16 tires)

09/18-01K Mi: 114.52AHr / SOH= 99.20%
04/19-10K Mi: 111.45AHr / SOH= 96.54%
11/19-20K Mi: 107.44AHr / SOH= 93.07%
12/20-33K Mi: 105.39Ahr / SOH= 91.29%
04/21-35K Mi: 104.32Ahr / SOH= 90.37%

denwood
Posts: 78
Joined: Wed Mar 03, 2021 1:14 pm
Delivery Date: 03 Mar 2018
Leaf Number: 314149
Location: Northern Ontario, Canada

Re: Nice Efficiency Improvement

Sun Mar 21, 2021 2:16 pm

HerdingElectrons wrote:
Sun Mar 21, 2021 11:12 am
...
The 17" OEM combo if TireRack's weight for the OEM Michelin specs are to be believed means that I went from a 47.2lb per corner to a 38.92lb per corner so a reduction of 8.28lb which is very noticeable during initial acceleration. basically I now get the "eagerness" of the car when Eco mode is turned off with the lighter combo while still in Eco mode.
...
That's what I would have predicted. That 8lbs of rotating mass is very significant on acceleration. On the other end, you'll have less regenerative braking energy to recover. Given the inherent inefficiency of regen, better to save those electrons on acceleration. It's the same when you swap over to say larger disc rotors and brakes for a "performance" upgrade. Yes, you stop better, but almost always at the cost of acceleration.

Try those in gear acceleration times! Thanks again for posting. Very interesting stuff for a techno geek like myself.

DougWantsALeaf
Posts: 2762
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: Nice Efficiency Improvement

Wed Mar 24, 2021 8:51 am

Ok, I fixed fixed Google image permissions for the car pic with the ev01 wheels.

https://drive.google.com/file/d/10XaT8J ... p=drivesdk
2019 S Plus (93.86% SOH) & 2019 SV Plus (93.35% SOH) Both Silver
2013 Leaf SV sold 2019 with 11 bars
100 Mile Club Member (Number 87)
Max Miles on 13 Leaf: 120 miles
Max Miles on 19 SV+: 242 Highway miles @ 4.5 miles/kWh

HerdingElectrons
Posts: 222
Joined: Sat Sep 08, 2018 3:20 pm
Delivery Date: 17 Sep 2018
Location: Central Coast, Ca

Re: Nice Efficiency Improvement

Thu Mar 25, 2021 10:56 am

Looks good!

I need to make time to take a pic of my wheels after I wash the car!
2018 SL Pearl White 4.5/3.9; 5.0/4.6 with 205/65/16 tires)

09/18-01K Mi: 114.52AHr / SOH= 99.20%
04/19-10K Mi: 111.45AHr / SOH= 96.54%
11/19-20K Mi: 107.44AHr / SOH= 93.07%
12/20-33K Mi: 105.39Ahr / SOH= 91.29%
04/21-35K Mi: 104.32Ahr / SOH= 90.37%

denwood
Posts: 78
Joined: Wed Mar 03, 2021 1:14 pm
Delivery Date: 03 Mar 2018
Leaf Number: 314149
Location: Northern Ontario, Canada

Re: Nice Efficiency Improvement

Thu Mar 25, 2021 4:46 pm

They look just fine :-) Post a pic without the covers...just curious.

DougWantsALeaf
Posts: 2762
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: Nice Efficiency Improvement

Thu Mar 25, 2021 5:58 pm

2019 S Plus (93.86% SOH) & 2019 SV Plus (93.35% SOH) Both Silver
2013 Leaf SV sold 2019 with 11 bars
100 Mile Club Member (Number 87)
Max Miles on 13 Leaf: 120 miles
Max Miles on 19 SV+: 242 Highway miles @ 4.5 miles/kWh

denwood
Posts: 78
Joined: Wed Mar 03, 2021 1:14 pm
Delivery Date: 03 Mar 2018
Leaf Number: 314149
Location: Northern Ontario, Canada

Re: Nice Efficiency Improvement

Fri Mar 26, 2021 6:41 am

Thanks for posting that :-)

I figure they look a bit better without the covers? Getting the inserts color matched to the car might take that look up a notch again.

DougWantsALeaf
Posts: 2762
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: Nice Efficiency Improvement

Fri Mar 26, 2021 8:33 am

I did like them without the covers on. I debated whether I should have waited longer before fitting the covers.

It is about an hours work to add or remove the covers; a bit more effort than to take the Tesla Aero covers on and off.
2019 S Plus (93.86% SOH) & 2019 SV Plus (93.35% SOH) Both Silver
2013 Leaf SV sold 2019 with 11 bars
100 Mile Club Member (Number 87)
Max Miles on 13 Leaf: 120 miles
Max Miles on 19 SV+: 242 Highway miles @ 4.5 miles/kWh

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