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bobkart
Posts: 192
Joined: Sat Dec 22, 2018 12:17 am
Delivery Date: 14 Dec 2018
Leaf Number: 307853
Location: Pacific Northwest
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Nice Efficiency Improvement

Fri May 01, 2020 4:00 pm

I had replaced two of the steel wheels on my 2016 S with much lighter versions last September (Enkei RPF1s), but didn't really see an efficiency improvement then. I put it down to new tires having more rolling resistance than old tires, and the weather cooling off.

In March of this year I replaced the other two wheels. They're around 7.5 pounds lighter per wheel than stock. Partway through April I noticed my efficiency numbers headed towards the upper 4.x m/kWh range (I reset all those counter at the end of each month).

Admittedly I'm driving less now, and more of it is 'elective' as opposed to necessary (no more commute). The elective nature means I can be in less of a hurry. For April I averaged 4.9 m/kWh, over 234.4 miles. My previous best had been last May at 4.7 m/kWh.

Keep in mind that I've done a bunch of other weight-reduction efforts. Not going into full detail on that here, but (for example) one of the larger items on that list is the 12V battery tray, which because I reduced my battery size/weight down (via LiFePO4 battery), I replaced an over-four-pound set of parts with a ~170g setup, a weight reduction of over 10x.

I went for a short trip today (under six miles), with the counters starting at zero (first day of the month), and was able to get 5.3 m/kWh. I've never seen 5.x before today. This trip had hills even. And this is a round trip (started and ended at home). I was intentionally trying to get a good number, so my more normal driving style wouldn't do as well.

Image

Feel free to contribute your numbers here!
Pearl White 2016 Leaf S, 24kWh battery
Silver Enkei Racing RPF1 16x7 Wheels
Ohmmu T12403 LiFePO4 12V Battery
Nissan All-Season Floor Protectors

ClipperCreek LCS-25P
2x REC 325Wp Solar Panels
10kWh LiFePO4 Battery Bank
BAFX OBD2 Reader, LeafSpy Pro

coleafrado

Re: Nice Efficiency Improvement

Sun May 03, 2020 2:58 pm

Nice suggestion - wonder if they'd do well with Tesla-style aerodynamic caps.

powersurge
Posts: 1743
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: Nice Efficiency Improvement

Tue May 05, 2020 10:50 am

Most people don't know that the factory 16" steel wheels on the S are 5lbs lighter each than the alloy wheels.

DougWantsALeaf
Posts: 2686
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: Nice Efficiency Improvement

Tue May 05, 2020 11:50 am

That's like taking 80 pounds off of the car. Most of us believe that the 16" vs 17" wheels is the main driver of the efficiency difference between the S and SV/SL Leaf's in the 2019/2020 model year for the Plus.
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

User avatar
bobkart
Posts: 192
Joined: Sat Dec 22, 2018 12:17 am
Delivery Date: 14 Dec 2018
Leaf Number: 307853
Location: Pacific Northwest
Contact: Website YouTube

Re: Nice Efficiency Improvement

Wed May 06, 2020 5:21 pm

Image

In case anyone wonders what they look like on the car.
(It was a bit on the dark side today so contrast is lacking.)
Pearl White 2016 Leaf S, 24kWh battery
Silver Enkei Racing RPF1 16x7 Wheels
Ohmmu T12403 LiFePO4 12V Battery
Nissan All-Season Floor Protectors

ClipperCreek LCS-25P
2x REC 325Wp Solar Panels
10kWh LiFePO4 Battery Bank
BAFX OBD2 Reader, LeafSpy Pro

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Dala
Posts: 334
Joined: Sun Oct 28, 2018 11:24 am
Delivery Date: 01 Jan 2015
Leaf Number: 316851
Location: Finland
Contact: Website

Re: Nice Efficiency Improvement

Thu May 07, 2020 12:26 am

Looks good, now just 3d-print an aeromod front ;) https://github.com/dalathegreat/Nissan- ... od-Grille/

User avatar
bobkart
Posts: 192
Joined: Sat Dec 22, 2018 12:17 am
Delivery Date: 14 Dec 2018
Leaf Number: 307853
Location: Pacific Northwest
Contact: Website YouTube

Re: Nice Efficiency Improvement

Thu May 07, 2020 10:27 am

I'm definitely considering something like that (but have no printer).

Is there any data on how much of an improvement that makes?

Thanks for the link.
Pearl White 2016 Leaf S, 24kWh battery
Silver Enkei Racing RPF1 16x7 Wheels
Ohmmu T12403 LiFePO4 12V Battery
Nissan All-Season Floor Protectors

ClipperCreek LCS-25P
2x REC 325Wp Solar Panels
10kWh LiFePO4 Battery Bank
BAFX OBD2 Reader, LeafSpy Pro

User avatar
bobkart
Posts: 192
Joined: Sat Dec 22, 2018 12:17 am
Delivery Date: 14 Dec 2018
Leaf Number: 307853
Location: Pacific Northwest
Contact: Website YouTube

Re: Nice Efficiency Improvement

Thu May 07, 2020 10:29 am

I'm wondering if anyone has done anything to blank out those empty foglight receptacles.
Pearl White 2016 Leaf S, 24kWh battery
Silver Enkei Racing RPF1 16x7 Wheels
Ohmmu T12403 LiFePO4 12V Battery
Nissan All-Season Floor Protectors

ClipperCreek LCS-25P
2x REC 325Wp Solar Panels
10kWh LiFePO4 Battery Bank
BAFX OBD2 Reader, LeafSpy Pro

LeftieBiker
Moderator
Posts: 16918
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Nice Efficiency Improvement

Thu May 07, 2020 11:37 am

bobkart wrote:
Thu May 07, 2020 10:29 am
I'm wondering if anyone has done anything to blank out those empty foglight receptacles.
??? My 2013 had flush covers over them.
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.

User avatar
bobkart
Posts: 192
Joined: Sat Dec 22, 2018 12:17 am
Delivery Date: 14 Dec 2018
Leaf Number: 307853
Location: Pacific Northwest
Contact: Website YouTube

Re: Nice Efficiency Improvement

Thu May 07, 2020 12:34 pm

Mine look like this (as do others I have seen of the same trim level and similar year):

Image

I have some white Racer's Tape and have been tempted to try to cover that opening up with it.

But it would probably suffer appearance-wise.
Pearl White 2016 Leaf S, 24kWh battery
Silver Enkei Racing RPF1 16x7 Wheels
Ohmmu T12403 LiFePO4 12V Battery
Nissan All-Season Floor Protectors

ClipperCreek LCS-25P
2x REC 325Wp Solar Panels
10kWh LiFePO4 Battery Bank
BAFX OBD2 Reader, LeafSpy Pro

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