Help Needed: Rim & Tire Size (Urgent)
#1
Help Needed: Rim & Tire Size (Urgent)
Hey Guys,
Happy new year!
Need everyone to chime in if they can, I need to get my tire and rims sorted out as soon as possible, my set up is:
Rims:
Vorsteiner V106
19x9
19x12
Tires:
Pilot Sport Cup 2's
245/35/zr19
325/30/zr19
I just need to confirm the following:
1- Does my set up slow my acceleration down (Wheel & Tire Size)?
If Yes:
1- Is it the Tire size or the Rim size?
I have a few locals interested in buying my rims, so if it's confirmed that they slow me down I may consider selling them and looking for alternatives and run R888's.
Would you guys recommend 18's or 19's (if the option is there).
Thanks in advance for the input!
Happy new year!
Need everyone to chime in if they can, I need to get my tire and rims sorted out as soon as possible, my set up is:
Rims:
Vorsteiner V106
19x9
19x12
Tires:
Pilot Sport Cup 2's
245/35/zr19
325/30/zr19
I just need to confirm the following:
1- Does my set up slow my acceleration down (Wheel & Tire Size)?
If Yes:
1- Is it the Tire size or the Rim size?
I have a few locals interested in buying my rims, so if it's confirmed that they slow me down I may consider selling them and looking for alternatives and run R888's.
Would you guys recommend 18's or 19's (if the option is there).
Thanks in advance for the input!
#2
Your acceleration may be slightly slower, but it may appear the same or slightly faster on speedo...
You have stock rim diameter, but deeper sidewalls due to wider tyres - sidewall height is aspect times width.
Your circumference is 1.8% larger than stock, meaning that your speedo will UNDER-READ as one revolution of your wheel will take you further than your speedo is calibrated to assume.
So based on speedo, you will think you are getting to x mph faster than you are.
However, one rotation of your wheel/tyre will need slightly more torque than standard so there may be a slight impact on actual acceleration.
It will all be pretty slight!
You have stock rim diameter, but deeper sidewalls due to wider tyres - sidewall height is aspect times width.
Your circumference is 1.8% larger than stock, meaning that your speedo will UNDER-READ as one revolution of your wheel will take you further than your speedo is calibrated to assume.
So based on speedo, you will think you are getting to x mph faster than you are.
However, one rotation of your wheel/tyre will need slightly more torque than standard so there may be a slight impact on actual acceleration.
It will all be pretty slight!