changing your rims, does it change your speed

1REASUN · May 15th, 2007, 01:18 PM

if i go from my stock rims to 17x9's, does it change my speed?...would i have to get my speedometer re-calculated or something?

GreenFaleen · May 15th, 2007, 01:20 PM

yes you will

02ponypackage · May 15th, 2007, 01:26 PM

you will feel the difference...i went from my stock to Cobra R in Chrome 17x9s with 275 40s front and back and you can feel the extra weight...but it looks good...then you just make up for the extra weight with more power

Murderjetz · May 15th, 2007, 01:32 PM

Originally Posted by GreenFaleen

yes you will

Really?
let's say you get bigger rims, but tires with a lower sidewall, so that the outside circumference of the tire is still the same as it was with the old rims....you know what i mean?

1REASUN · May 15th, 2007, 01:34 PM

so i need to re-calculate my speedometer?

GreenFaleen · May 15th, 2007, 01:38 PM

yeah you will need to re-cal the speedo ford can do it. and weight and more rotational mass is what causes the speed offset.

ESG-642T · May 15th, 2007, 02:09 PM

17x9 on a 245/45/17 tires wont need any change....

Onemanzu · May 15th, 2007, 02:11 PM

sorry fallen... but it your overall tire hieght stays the same you wont need too

ssstang = correct

you could go 275-285 if you wanted to... mine are 245 on 8 inch wide... but for a 17 inch rim you want 45 mm sidewall

GreenFaleen · May 15th, 2007, 02:22 PM

Originally Posted by Onemanzu

sorry fallen... but it your overall tire hieght stays the same you wont need too

ssstang = correct

you could go 275-285 if you wanted to... mine are 245 on 8 inch wide... but for a 17 inch rim you want 45 mm sidewall

thats good to know

97stanger · May 15th, 2007, 03:37 PM

Originally Posted by GreenFaleen

Originally Posted by Onemanzu

sorry fallen... but it your overall tire hieght stays the same you wont need too

ssstang = correct

you could go 275-285 if you wanted to... mine are 245 on 8 inch wide... but for a 17 inch rim you want 45 mm sidewall

thats good to know

yeah i was going to jump in and correct you, but they beat me to it by like 2 hours. lol

1REASUN · May 15th, 2007, 04:24 PM

k, sweet, so i dont have to get a speed change or n e thing...that sounds great...thanks a lot guys

...one of the reasons why im on this forum...thanks for the help

ByPopularDemand · May 15th, 2007, 04:43 PM

I have 17x8 and 245/45's and my speedo reads 1.5 mph faster than I'm going

ByPopularDemand · May 15th, 2007, 04:44 PM

I have 17x8 and 245/45's and my speedo reads 1.5 mph faster than I'm going

ByPopularDemand · May 15th, 2007, 04:46 PM

I have 17x8 and 245/45's and my speedo reads 1.5 mph faster than I'm going

97stanger · May 15th, 2007, 04:52 PM

you only needed to post it once. lol. and it shouldnt read any different

ByPopularDemand · May 15th, 2007, 04:52 PM

Damn...sidekick...sorry bout the triple post

1REASUN · May 15th, 2007, 06:42 PM

Originally Posted by ByPopularDemand

I have 17x8 and 245/45's and my speedo reads 1.5 mph faster than I'm going

k well, if my speedometer reads faster than i am actually going, that will actually keep me from speeding even more when i see a cop and look at my speedometer. but if you keep that problem of your speedo reading 1.5mph faster than you're going, aren't you putting extra miles on your car that you shouldn't be?

the rims/tire/Sizes that I'll be using would be 255/40z on 17x9's all four corners(obviously)

Florida Mustang · May 15th, 2007, 07:27 PM

Go to this site and see the what the size of tires and wheels.
http://www.1010tires.com/TireSizeCal...?action=submit

Florida Mustang

1REASUN · May 15th, 2007, 08:37 PM

haha, thats what i like to see, noobs helpin noobs..(well thats what it says under your name"label thing") thanks FL, that site actually shows alot and supports to a legit reason of speed and an answer for this thread/forum/subject.

in case n e one wants to know...
stocks = 205/55R15

my 17x9's = 255/40R17

another thing...

a pop up came up telling me that a 3%change from stock rims to another set of rims could be subject towards brake malfunction or something like that. has n e one ever heard of such things? i guess it could happen?but i just would like some feedback?...or does this subject deserve another subject thread?...idk-prob not since im typing it already?

ByPopularDemand · May 15th, 2007, 10:40 PM

We are putting the same amount of miled on the car because its the same distance trevelled, regardless of the speed you do so at. And also a 17x8 isn't gonna cause any brake failure

May 15th, 2007, 01:18 PM	#1
1REASUN Regular 99 stang Join Date: Apr 2007 Location: MN Posts: 189 iTrader: 0 reviews	changing your rims, does it change your speed if i go from my stock rims to 17x9's, does it change my speed?...would i have to get my speedometer re-calculated or something? __________________ 1999 Auto V6 3.8L 35th Anniversary CAI + True Duals Exhaust 17inch SVT rims, mach1grille delete, 8inch shorty antenna, 35% tint hopefully's: Tuner, UDP's, possibly 4.10 Gears, lighter driveshaft

May 15th, 2007, 01:20 PM	#2
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	yes you will __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

May 15th, 2007, 01:26 PM	#3
02ponypackage MM Fanatic Join Date: Oct 2006 Location: Central FL Posts: 3,405 iTrader: 0 reviews	you will feel the difference...i went from my stock to Cobra R in Chrome 17x9s with 275 40s front and back and you can feel the extra weight...but it looks good...then you just make up for the extra weight with more power __________________ just a V6 with a bad belt slip under the hood

May 15th, 2007, 01:34 PM	#5
1REASUN Regular 99 stang Join Date: Apr 2007 Location: MN Posts: 189 iTrader: 0 reviews	so i need to re-calculate my speedometer? __________________ 1999 Auto V6 3.8L 35th Anniversary CAI + True Duals Exhaust 17inch SVT rims, mach1grille delete, 8inch shorty antenna, 35% tint hopefully's: Tuner, UDP's, possibly 4.10 Gears, lighter driveshaft

May 15th, 2007, 01:38 PM	#6
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	yeah you will need to re-cal the speedo ford can do it. and weight and more rotational mass is what causes the speed offset. __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

May 15th, 2007, 02:09 PM	#7
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,319 iTrader: 0 reviews	17x9 on a 245/45/17 tires wont need any change.... __________________ Hi, You can call me Kyle Random ESG fact: Had a prochamber on his v6 before it was popular. WTB: v6 BBK valve covers

May 15th, 2007, 02:11 PM	#8
Onemanzu ¡ʇsnq ɹo uʍop ǝpısdn Join Date: Oct 2006 Location: Looking for free hand jobs in poland springs nebraska... silly gooses Posts: 12,551 Blog Entries: 1 iTrader: 0 reviews	sorry fallen... but it your overall tire hieght stays the same you wont need too ssstang = correct you could go 275-285 if you wanted to... mine are 245 on 8 inch wide... but for a 17 inch rim you want 45 mm sidewall __________________ My Foz

May 15th, 2007, 04:24 PM	#11
1REASUN Regular 99 stang Join Date: Apr 2007 Location: MN Posts: 189 iTrader: 0 reviews	k, sweet, so i dont have to get a speed change or n e thing...that sounds great...thanks a lot guys ...one of the reasons why im on this forum...thanks for the help __________________ 1999 Auto V6 3.8L 35th Anniversary CAI + True Duals Exhaust 17inch SVT rims, mach1grille delete, 8inch shorty antenna, 35% tint hopefully's: Tuner, UDP's, possibly 4.10 Gears, lighter driveshaft

May 15th, 2007, 04:43 PM	#12
ByPopularDemand Hardcore Enthusiast 2000 V6 Join Date: Jan 2007 Location: Albuquerque Posts: 2,666 iTrader: 0 reviews	I have 17x8 and 245/45's and my speedo reads 1.5 mph faster than I'm going __________________ 2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears.

May 15th, 2007, 04:44 PM	#13
ByPopularDemand Hardcore Enthusiast 2000 V6 Join Date: Jan 2007 Location: Albuquerque Posts: 2,666 iTrader: 0 reviews	I have 17x8 and 245/45's and my speedo reads 1.5 mph faster than I'm going __________________ 2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears.

May 15th, 2007, 04:46 PM	#14
ByPopularDemand Hardcore Enthusiast 2000 V6 Join Date: Jan 2007 Location: Albuquerque Posts: 2,666 iTrader: 0 reviews	I have 17x8 and 245/45's and my speedo reads 1.5 mph faster than I'm going __________________ 2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears.

May 15th, 2007, 04:52 PM	#16
ByPopularDemand Hardcore Enthusiast 2000 V6 Join Date: Jan 2007 Location: Albuquerque Posts: 2,666 iTrader: 0 reviews	Damn...sidekick...sorry bout the triple post __________________ 2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears.

May 15th, 2007, 07:27 PM	#18
Florida Mustang Newbie Join Date: Dec 2006 Posts: 20 iTrader: 0 reviews	Tire and wheel size site Go to this site and see the what the size of tires and wheels. http://www.1010tires.com/TireSizeCal...?action=submit Florida Mustang

May 15th, 2007, 10:40 PM	#20
ByPopularDemand Hardcore Enthusiast 2000 V6 Join Date: Jan 2007 Location: Albuquerque Posts: 2,666 iTrader: 0 reviews	We are putting the same amount of miled on the car because its the same distance trevelled, regardless of the speed you do so at. And also a 17x8 isn't gonna cause any brake failure __________________ 2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears.

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changing your rims, does it change your speed

changing your rims, does it change your speed

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