i changed my rims and tires from my winter tires to a 17" rim with a low profile tire so if you set the tires side by side the aftermarket tire is smaller than my winter ones so what i would like to know is if it is going to change my speedometer or if it will mess up my odometer... and is there any way to check if its off and fix it... any help is welcome.. thanks in advance!
yes it will and its not good. only for the main reason like ww said is it will put more miles on your car than there actually is. for 17s the smallest you can go and still keep everything accurate is 215/45/17
well like weasel and bagged have already said, this is a big no no. you should have asked this before you even bought the things, but too late now.
there is at this moment no way to recalibrate your speedo as it is controlled by the ECU. HP may provide the capability in changing your wheel diameter, i havent looked into it.
i would however like to know what size we are talking about here and what size your car came with OE. for all we know, your aftermarket rims and tires could be the correct size and your snows are too large for your vehicle. usually being withing 3% plus or minus is ok, but i tend to prefer a half of an inch or less with my vehicles.
post up the following info:
what size are your snows?
what size are your summers?
what size DID your car come with originally (found on the drivers door jam)?
like i said, your snows could be bigger and your summers the right size. if thats the case, your rims are only on for a few months anyways, then its all gravey depending on how far out they are.
Injection is nice but id rather be BLOWN!
http://www.cardomain.com/ride/2290307
ok I'm not sure now all i know right now is that my summer tires are 17" rims with 215/45/17 tires... i'l chekc to night what my door says and what my snow tires are bbut i know when i set the two next to each other the summers were smaller by about 1/4 to 1/2 inch... but i'll try to get that info tonight or tomorrow
you can also use 225/45/17
215/45/17 is what most say to use but 225/45/17 can be used with out messing with you speedometer
May be your winter tires are not the right size. It has been know that the thread on some tires have have them a little taller but no by that much.
2004 Grand Prix GTP (Competition Group)
SOLD-->1999 Z24 5M-#30 to register on JBO
"You can please some of the people some of the time but you can't please all the people'
all the time
well 215/45/17 is the right tire size. that tire is gonna look smaller than your winter ones because the rim is bigger on the 17s
My recommended tire size is 205/55/16 and this is the size my snow tires are also... however my summer tire size is 215/45/17... this will be fine right???? and the 205/215 numbers is just the width correct
yes 215/45/17 is the correct tire size (atleast 1 of them) and the 205-215-225-235, etc... is the width of the tire. the second number is the height of the sidewall.
example your tire the 215/45/17
215- width of tire
45 - sidewall height (45% of 215)
17- rim size
You can have the dealer recalibrate your speedo with the tech 2.
what would a tech 2 do if my tires are the correct size???? and thanks for all the help everyone.
Nothing. If the wheels are the correct size, the speedometer should be reading accurately. Nothing to worry about.
i have 235/40/17 and my speedo is off like 2% maybe so its nearly right on.
