Quote:
Originally Posted by mcrews
Welcome!
did the diameter of the tires get smaller?
read ther threads on tires size.
weight reduction 2-4 lbs a wheel will not increase mpg.
Try taking out the spare and test the mpg.
You are better off increasing the diameter thus lowering the rpm when at cruise.
also increase the psi.
But a good search will provide the answers.
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The base Sentra SE comes with 15" wheels. I have the performance package that had 16" wheels. I dropped down to a 15" wheel which is about 2.5lbs lighter a wheel. I went with a smaller contact patch (195 down from 205) and a taller profile (60 series up from 50). I just had these new tires mounted yesterday, so no data as of yet. The tires are at maximum psi.
Visit my project thread for more details:
http://ecomodder.com/forum/showthrea...tra-25134.html