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Vekke · 04-03-2021, 03:37 PM

I have had the car now soon 4 days. So far I have got ~6% better FE

starting point calculation:
https://ecomodder.com/forum/tool-aer...ToStep=40-65-1

Current situation cd at about 0,24: https://ecomodder.com/forum/tool-aer...ToStep=40-65-1
done mods:
- 195/55r20 tires with BMW i8 wheels. These are 4% taller and increase ride heigth 15mm. Which is bad for FE. Savings 2,3%
- Grill block Savings 1,3%
- Rear suspension arm covers 1,3%
- Front suspension arm covers 0,6%
- Bigger Front tire deflectors 0,5%

Underside is pretty smooth from factory. Only the suspension and wheel areas is where you can make improvements.

Idle energy consumption is 2-2.5kwh when car is warm when outside temps are +4 to +7 celsius. Thats a lot in my mind.

Pictures on my facebook page: https://www.facebook.com/media/set/?...76628169017686

Weird results in tire pressure tests.Lower pressures gave almost better results. On first tests I have thinked that the warm up takes about 20km, at least then the idle consumptions is around that 2-2,5kwh range. Maybe bearings and oils take little bit longer any experience and better data on EV warmup times?

04-03-2021, 03:37 PM	#5 (permalink)
Vekke Mechanical engineer Join Date: Jan 2009 Location: Kitee (Finland) Posts: 1,276 Siitin - '98 Seat Cordoba Vario 90 day: 58.56 mpg (US) VW Lupo 3L --> 2L - '00 VolksWagen Lupo 3L Diesel 90 day: 104.94 mpg (US) A8 luxury fuel sipper - '97 Audi A8 1.2 TDI 6 speed manual 90 day: 64.64 mpg (US) Audi A4B6 Avant Niistäjä - '02 Audi A4b6 1.9tdi 96kW 3L 90 day: 54.57 mpg (US) Tourekki - '04 VW Touareg 2.5TDI R5 6 speed manual 90 day: 32.98 mpg (US) A2 1.4TDI - '03 Audi A2 1.4 TDI 90 day: 45.68 mpg (US) A2 1.4 LPG - '02 Audi A2 1.4 (75hp) 90 day: 24.67 mpg (US) Thanks: 273 Thanked 844 Times in 417 Posts	I have had the car now soon 4 days. So far I have got ~6% better FE starting point calculation: https://ecomodder.com/forum/tool-aer...ToStep=40-65-1 Current situation cd at about 0,24: https://ecomodder.com/forum/tool-aer...ToStep=40-65-1 done mods: - 195/55r20 tires with BMW i8 wheels. These are 4% taller and increase ride heigth 15mm. Which is bad for FE. Savings 2,3% - Grill block Savings 1,3% - Rear suspension arm covers 1,3% - Front suspension arm covers 0,6% - Bigger Front tire deflectors 0,5% Underside is pretty smooth from factory. Only the suspension and wheel areas is where you can make improvements. Idle energy consumption is 2-2.5kwh when car is warm when outside temps are +4 to +7 celsius. Thats a lot in my mind. Pictures on my facebook page: https://www.facebook.com/media/set/?...76628169017686 Weird results in tire pressure tests.Lower pressures gave almost better results. On first tests I have thinked that the warm up takes about 20km, at least then the idle consumptions is around that 2-2,5kwh range. Maybe bearings and oils take little bit longer any experience and better data on EV warmup times? __________________ https://www.linkedin.com/in/vesatiainen/ Vesa Tiainen innovation engineer and automotive enthusiast Last edited by Vekke; 04-03-2021 at 04:05 PM..