06-25-2007, 09:40 PM
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#1
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AF Newbie
Join Date: Jun 2007
Location: kitchener
Posts: 22
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18's
i'm debating weather to buy a set of 18 inch rims for my Grand am (2001) but this buddy of mine told me that the size may affect my spedomador (i cant spell sry) is this sumthing i should worrie about or what
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06-26-2007, 08:36 AM
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#2
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AF Regular
Join Date: Jan 2006
Location: Davie, Florida
Posts: 267
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Re: 18's
i kno that if u get 18s it will look good anything higher just looks stupid, about the wheel changing the speed i honestly dont think if changes that much, i think if u get bigger wheel u lose gains on acceleration if i remeber right... i guess just wait for sum1 who knows the right answer to help ya out, but im pretty sure thats how it works...
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my Cardomain
2002 3.4L V6 GA Coupe
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-Xero is my hero--
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mods:
Suspension: KYB GR2s, Intrax Lowering Springs, Upper Front Strut Bar
Engine: Custom 2.25" Exhaust,Doctorspeed Cold Air Box
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06-26-2007, 09:30 AM
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#3
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AF Enthusiast
Join Date: Jul 2006
Location: West Lafayette, Indiana
Posts: 940
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Re: 18's
Quote:
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Originally Posted by Jmoney3318
i kno that if u get 18s it will look good anything higher just looks stupid, about the wheel changing the speed i honestly dont think if changes that much, i think if u get bigger wheel u lose gains on acceleration if i remeber right... i guess just wait for sum1 who knows the right answer to help ya out, but im pretty sure thats how it works...
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yes, and the speedometer needs to be calibrated 
Plus, heavier wheels = slower accel. Not to mention it takes longer for the wheels to make one rotation. Think of the balerina problem. A chick spins in circles with her arms out as opposed to pulled in... which way do you spin faster?
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Mods:
P&P LIM/UIM, angel eyes, CAI, lowering springs, struts, plugs, wires, flowmaster 2.5" catback exhaust, front/rear strut bar, synthetics, DHP PCM 
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06-26-2007, 10:15 AM
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#4
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AF Regular
Join Date: Jun 2007
Location: MESA, Arizona
Posts: 130
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Re: 18's
yup, your ride on 18's would look sick, it strue, youll have to recalibrate your speedometer(minimal, almost unoticeable) also, tire replacement is going to be more frequent due to the tire being low profile, also, drivability will be a lot stiffer(an inch does make a difference e.i. 17's from 18's). other than that, nothing to worry about if you go 18's or stay with 17's. Oh yeah, you are going to use more gas since like someone else explained that the wheel has to travel more in order to complete a revolution.
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Is.... peanut butter jelly time, peanut butter jelly time, peanut butter jelly time, peanut butter jelly time.
