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c6 17x9.5 wheels from OE wheels

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Old 08-03-2010, 08:20 PM   #1
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Default c6 17x9.5 wheels from OE wheels

I'm asking the question for a friend with a v6 fiebird. The car has the 16" snowflakes with 225s from the factory.

He brought up something I couldn't answer, but the question is does having a bigger wheel 17 or 18s with smaller sidewall kill his mpgs significantly.

Also what is the "minimum" tire can he put on 17x9.5 wheels since he doesn't really need 275s.

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Old 08-03-2010, 10:06 PM   #2
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275/40-17 is the proper size tire for a 17" wheel on a 4th gen car. It will have the same diameter as stock 16" tires, so your mileage won't change. Any slight changes would be due to weight differences in the wheel/tire package.
What year Firebird and what was the original tire size?
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Old 08-03-2010, 10:55 PM   #3
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You can run a 245-255 tire on it. They just don't look near as good!
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Old 08-03-2010, 10:55 PM
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