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Old 07-04-2022, 01:07 AM   #2 (permalink)
Vekke
Mechanical engineer
 
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Join Date: Jan 2009
Location: Kitee (Finland)
Posts: 1,176

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)
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I did CFD 3 runs on the A2 body. these are degree angle.
0,0 -- >0,2762
0,5 -->0,2792
1,0 -->0,2904

So in that car level was better, differences in drag were big so should be able to notice the difference. If car is not high, lower it with racthes on springs etc to find the sweet spot front or back. It also changes roof and diffusor angles so results are not same for each car.
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Vesa Tiainen innovation engineer and automotive enthusiast

Last edited by Vekke; 07-06-2022 at 04:31 AM..
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