How I increased my mileage from 44.7 to 53?
I used:
-A lot of time reading pdf and forum about the 1.9 TDI PumpeDuse Volkswagen Engine
- Some tools 13mm and 18mm explained in many tutorials (visit
Fred's TDI Page. TDIClub.com. VW TDI Enthusiast Community or
AreaVAG and search for "cam timing", "angle syncrho", "torsion", vag com, vcds...).
- Gloves.
- Aluminum Foil
- Power tape
- 300-400 km of testing and data logging with Vag-Com 311.2 and a Notebook.
- 22 km of non-congested flat Highway, no wind day or night. Start point the same as Finish point allowed ensure there's no climbing each loop.
- A Volkswagen AG car equiped with PümpeDuse Engine.
I started measuring the fuel consumption of my car. After this I blocked the upper grill of my car inspired in Ecomotive and racing versions of my car. You can see some pictures in:
http://ecomodder.com/forum/showthrea...ape-19191.html
My results with upper grill open -> closed
Quote:
82 km/h: 4.36 -> 4.23 L/100km ; 53.9 -> 55.6 us mpg at 51 mph
94 km/h: 4.73 -> 4.57 L/100km ; 49.8 -> 51.5 us mpg at 58.4 mph
122 km/h: 6.67 -> 6.42 L/100km ; 35.3 -> 36.6 us mpg at 75.8 mph
|
After my camsahft timing fine tuning this are my figures in fuel consumption also with open and closed grill:
3.90@82 -> 3.80@82 ; 60.3 -> 61.9 us mpg at 51 mph
4.23@94 -> 4.02@94 ; 55.6 -> 58.5 us mpg at 58.4 mph
5.75@122 -> 5.50@122 ; 40.9 -> 42.8 us mpg at 75.8 mph
That means :
at 82 km/h: -13% L/100km -> +15% us mpg
at 94 km/h: -15% L/100km -> +18% us mpg
at 82 km/h: -18% L/100km -> +21% us mpg
I'm using Brisgestone ER300 front and Hankook Ventus V12 Evo K110 at rear, that allow my higher stability (little understeer) and better braking because of more rear grip. Sportly tuned, not ecotires of any make. So it's room form more improvements (ECU, lrr tires of bigger radius, aerodynamic cd I think could be lowered easily to 0.30 and with little tuning of underbody maybe go to 0.27 or 0.28 looking almost the same car...).
If my estimations are correct I broke the 40 us mpg barrier, some full tank filling will show me if i succeeded.