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Oldsmobile Aurora: Modifications

1164 messages, Last post on May 12, 2009 at 6:08 AM
You are in the Oldsmobile Aurora Forum. Your Hosts are pat & karens
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Replying to: my96aurora (Jan 02, 2008 8:11 pm)
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Replying to: rjs200240 (Jan 05, 2008 7:20 am) |
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--------------------------------------------------------------------------------- I'm contemplating buying a new set of wheels for my classic. They are 18s but what I am really interested in is what you guys think about the tites. They are 225/40/18 Lexani. I know this is a bit narrower than stock with a smaller sidewall. Will this end up being a problem with handling, tranny, or speedo? Any input will be greatly appreciated. By the way I will be selling the stock chromies that I am replacing. They are in flawless condition if you guys are interested.
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Replying to: zransom (Jan 20, 2008 9:16 am) First -- I checked TireRack for load index for 225/40-18 tires; the range was 88 to 92. Load index for stock 235/60-16 tires is 100, meaning your proposed tires are seriously under size for Aurora's weight. Second -- outer diameter of 225/40-18 tires is 7.1% smaller than stock tires. The usual guideline is to keep difference in replacement tires less than 1%. The effect would be speedo reading ~64 mph when the car is actually going 60 mph. I do not know if the 7% difference can be detected by the PCM or anti-lock brakes; I suspect no. A much better choice would be 255/45-18, which will give you diameter within 0.2% of stock and load index of 99 to 103. Hope this helps. Les |
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Replying to: jwadle (Nov 11, 2002 9:14 am) I cant answer your question on how to fix it, but it is possible. How did you get the radio out, i am trying to take out mine. i have a 2002 aurora 3.5 |
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Has anyone had the problem of noise from the blower and also vibration in the gas peddle when turned to more then half way up? If so how did you fix it???
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Replying to: johnnyo4 (Jul 24, 2008 7:09 pm) |
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Replying to: slinkydink (Aug 04, 2003 7:09 am) |
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