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Old 01-13-2012, 01:27 PM   #49 (permalink)
ausias
Burning oil to move air.
 
Join Date: Aug 2011
Location: Valencia (Europe)
Posts: 126

ausiasmobil - '06 Seat Leon 1.9 TDI Reference
90 day: 40.22 mpg (US)

EcoTxec - '99 Skoda Octavia 1.9 TDI 110 cv Laurin & Klement
90 day: 52.85 mpg (US)
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Lexan of course. I used a cheap Lexan layer wich is used in greenhouse in a dual layer structure (coroplast i think) with UV protection in the external layer and nylon zipties.
In my Renault Kangoo van I was possible of doing a good aproach thanks to the U-groove of 3 to 6 mm on the 14" rims, so it fited like a Flexcap (of Tuneko) but I think white smooth hubcaps with ziptiesplugs will be better looking.
This vehicle does 90.000 km/year (56.000 mi/year) and fuel consumtion average of 5.7 L/100 km (42.3 us mpg) with 600 kg of load (1700 kg of total weight) and highway speeds.
I started the long term test and I'm hoping 0.11 to 0.28 L/100km less (if all the references I read are correct), It will refill full tanks 7 to 9 times a month on average. I'm waiting.
I started also a test on a Iveco Daily (7 meters long and 3500 kg total weight with load) and Volkswagen LT 35 wich are driven 150.000 km/year but large van rims of 15" and 16" are difficult to fit because of the rims and good looking prototype will need to adjust new number of holes and fixation to rim holes number. (You will see the pictures ) . Expected decrease on the Iveco f.c. of 10.7 L/100km (@105 km/h cruise control) is 0.21 to 0.5 L/100km less.
I don't have any obdii data logging interface to use with Renault and Iveco, maybe i could test better the VW ones, and also i will test in a car to get some short mileage results.

The two large vans are constantly working and i have limited availability on doing R+D, new flat hubcaps with a good looking number of holes are in project.
Total cost of the 8 hubcaps and zipties are 25€ and a lot of hours of work on R+D.
The wheel trims I did are all bubbled thanks to flexibility because bold hubcap or centre are several centimeters out. Flexibility of dual layer is very limited because minimum radius are around meters, It wasn't easy to obtain 16" rim needed curvature.
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Last edited by ausias; 01-13-2012 at 01:36 PM..
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