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Old 05-01-2009, 05:14 PM   #2 (permalink)
COcyclist
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TDi - '04 VW Golf
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tuning box for better mpg??

I also have found the price of a tuning box pretty steep so I don't have first hand experience. There are a number of threads at tdiclub.com on chips and tuning boxes. Most people there feel they improve diesel fuel mileage by a couple of mpg on the highway. Since they also make more hp you can lose the mileage gain by hotrodding around with your new power.

It would take a long time to break even from a fuel savings standpoint but it might be fun to have.
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https://ecomodder.com/forum/showthre...tml#post621801


Quote:
Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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