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Old 05-31-2022, 02:48 PM   #11 (permalink)
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Siitin - '98 Seat Cordoba Vario
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This is my current daily driver at the moment and the aero will be improved. Few new tricks coming and I am hoping to drop the drag around 0,23 levels.


I found a 22,8km long round test route to test the car and figured out how to make my cars test program for future. Previously I already tested with constant IQ program when you floor the gaspedal last 1% travel will give the 80km/h speed required iq for tests, but now I figured. If I build a stopper for normal driving that it wont allow pedal to go like 97% where I have normal max power. Then I can drive normally with the same ecu program and just for testing I take the pedal restrictor off.

Now back to mods
Current situation is abou this with grill block and lowering:https://ecomodder.com/forum/tool-aer...ToStep=40-65-1

I will try 165/65R15 Michelin primacy tires which have A rolling resistance. Will drop consumption at least 0,1 liters.
https://ecomodder.com/forum/tool-aer...ToStep=40-65-1

Then smooth underside on exhaust tunnel, rear fenderskirts, tire deflectors, printed air curtains at the front etc etc.--> cd 0,23
https://ecomodder.com/forum/tool-aer...ToStep=40-65-1

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Last edited by Vekke; 05-31-2022 at 03:25 PM..
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Old 05-31-2022, 04:25 PM   #12 (permalink)
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Regarding the block under the gas pedal - Maybe a spring would be better? That way the pedal will stop when it hits the spring, say around 75% allowing economical driving. But in case of emergency, you can still floor it, just with more force.
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e·co·mod·ding: the art of turning vehicles into what they should be

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[Old] Piwoslaw's Peugeot 307sw modding thread
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Old 05-31-2022, 04:28 PM   #13 (permalink)
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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)

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ecu program is 100% custom so hard stopper is fine and best. otherwise i lose resolution/travel of the pedal...
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Old 06-02-2022, 02:21 AM   #14 (permalink)
It's all about Diesel
 
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Quote:
Originally Posted by Piwoslaw View Post
Regarding the block under the gas pedal - Maybe a spring would be better? That way the pedal will stop when it hits the spring, say around 75% allowing economical driving. But in case of emergency, you can still floor it, just with more force.
Just like the so-called "dual-stage" throttle pedal that was fitted to some Volkswagens in Brazil in the '70s?
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Old 06-02-2022, 05:32 AM   #15 (permalink)
Mechanical engineer
 
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Join Date: Jan 2009
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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: 257
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Currently
0-70% is eco
70-100% is fast driving
Two stage system

New Will be
0-70% is eco
71-98% is fast driving (max 150hp and 1,8 bar boost)
99-100% test program setup (which is limited to about 80km/h speed)
So its 3-stage system.
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Old 06-06-2022, 03:12 AM   #16 (permalink)
It's all about Diesel
 
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Would it be able to go WOT at 80km/h?
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Old 06-09-2022, 11:38 AM   #17 (permalink)
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Join Date: Jan 2009
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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: 257
Thanked 795 Times in 386 Posts
At 80 km/h speed the 3 cylinder needs about 10mg/stroke injection. In the diesel there is no trottle body so speed in only controlled by injection and boost and other parameters for those.
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Old 06-12-2022, 10:30 AM   #18 (permalink)
It's all about Diesel
 
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Quote:
Originally Posted by Vekke View Post
In the diesel there is no trottle body so speed in only controlled by injection and boost and other parameters for those.
I don't know why I totally forgot you were dealing with a Diesel
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Old 01-28-2023, 08:32 AM   #19 (permalink)
Mechanical engineer
 
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Join Date: Jan 2009
Location: Kitee (Finland)
Posts: 1,239

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: 257
Thanked 795 Times in 386 Posts
A lot has happened in this project. Last summer I designed some bodykit parts to get drag coefficient under 0,20.



Now got finally my own 3d printer working and parts are flying out.

Will desing also new door mirrors. Same mirror as in the Audi A8 project, but more rigid assembly. I can also print blocking plates for original mirror place so its easy to swap for inspection the oem mirror.

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Old 01-28-2023, 09:14 AM   #20 (permalink)
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yery nice work!
I have not seen a part like that on a printer.

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aerodynamics, audi a2 1.4tdi, efficiency, fuel consumption

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