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Old 04-27-2008, 03:51 PM   #1 (permalink)
CorollaMaster's Avatar
Join Date: Apr 2008
Location: Ipswich
Posts: 15

Sippin' Subie - '09 Subaru Impreza 2.5i Hatchback
90 day: 26.3 mpg (US)
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Question Wheels - Large or Small Diameter? Width?

Hey all,

I'm new to this, but I was wondering what is better:

- Larger diameters or smaller diameters?
- Larger or smaller tire widths?

My first guess is that a larger rim with smaller tires and smaller width would be best for rotational inertia of the wheels. But then again are you losing more energy trying to get the larger diameter accelerating in the first place?

I was also wondering if anyone knew of a company that makes good light weight rims that might make a difference? or is it better to go with the run of the mill black and some flat hub caps?

I'm also considering wheel skirts. My friend works in autobody and is willing to help me out so that they look somewhat professional. One step at a time I guess. Thanks in advance for the help!


2008 Corolla S - 11,000miles

Pre-Hypermiling Tank Average ~34mpg
First Hypermiling experiment w/o ScanGuage 43.4mpg
Hypermiling with ScanGuage around 51mpg!

Last edited by CorollaMaster; 04-27-2008 at 04:19 PM..
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