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Old 06-08-2008, 11:29 AM   #3 (permalink)
EcoModding Lurker
Join Date: May 2008
Location: Canada
Posts: 25

Fortuga - '03 Subaru Forester X
90 day: 21.68 mpg (US)

The Beater - '94 Nissan Sentra EX
90 day: 28.88 mpg (US)
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Originally Posted by ankit View Post
Don't go too big now. Remember that wheel weight (this includes tire weight) count two times as normal weight. Also bigger diameter will mean that your car will be sitting higher up in the air and you don't want to destroy your aerodynamics.
What aerodynamics!?

This is a bit of a brick. I'm not even worried about that at this stage. I just feels that the car needs longer gears because the engine is powerful enough that it will rev lower, especially in cruise. Someone recommended that I just get the larger diameter tires instead of doing expensive transmission work (IF at all possible). I figure that a larger diameter in a low rolling resistance tire aired up to the max recommended on the sidewall would probably work out pretty well, however I don't feel that I know enough to be able to make that decision without some advice. Also, the tires are a pretty expensive proposition as well so I thought I better check with you guys before committing.

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