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Old 07-19-2021, 08:07 AM   #72 (permalink)
Vekke
Mechanical engineer
 
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Join Date: Jan 2009
Location: Kitee (Finland)
Posts: 1,272

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)
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Quote:
Originally Posted by California98Civic View Post

Which is the "D" shape that you identify as best? It seemed like the "D" shape was among the best but that it was equal to the "I" shape at 1.17 and the "O" shape. I must have misunderstood.


This is the D shape on the rigth and second best triangle shape on left. Difference between these two in my tests 0,6-1,0%.

But like I wrote even that can be improved with many tricks and fine tuning. Those can be seen in this video:
https://youtu.be/EDYYMPKPSKs
In final setup I did not have time to build D shape to the deflectors and they are the triangle shapes in final configuration. Building the Triangles took about 1 hour and the D shape ones would have taken almost triple the time. Plus I did not want to break the best deflectors the D ones which work with the wider tires so they are saved for future testing
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Last edited by Vekke; 07-19-2021 at 08:13 AM..
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