Calculate how much your RIMZ throw the speedometer off

[mko]

http://www.1010tires.com/TireSizeCalculator.asp?action=submit&reset=yes

If you are under 3% off then you re fine.

For example my 2g Eclipse wheels which I consider as stock come with 205/55/16. Right now Im running 205/45/16, so my speedometer says around 65mph /64.1 mph/ and my actual speed is 60mph. I caught that difference with the GPS, and I was actually suprized that this calculator works

[boochieboy]

Nice find. I'm only going to be running a .09 mph faster reading with my rims and tires. Thanks.

[00galantguy]

im only off by .84% to slow

[kolio]

i went from 185/70/14 to 215/45/17

1.739% too slow

[airborneparainf82]

Whats stock on the 8G?

[kalvinsaid]

i believe stock is 195/65/15

[Reelax]

usdm 8g i4 = 195/65r15
usdm 8g v6 = 205/55r16

the i4 stock tires are actually marginally TALLER than the v6 stock tires even though the stock I4 wheels (15") are smaller than the stock V6 wheels (16").

right now i'm running 2.412% too slow (235/35zr19 ESV6), 60mph actual = 58.5mph speedo... close enough.

[9G]

Speedometer Difference: 0.658% too slow

[SleekGTZ]

Speedometer Difference: 0.658% too slow

x2 on mine too. you're a copy cat!

[Fishboy55]

1.83% too slow

[RedGalant2k1]

www.bigcustomwheels.com

[lonestar22]

my nineteens are fine but my infinity wheels are 8.1% too slow!

[BODOGG]

Great find .397% to slow

[airborneparainf82]

.036 too fast...interesting

[SkylineG1]

3.82%. You the V6 guys fair better because of the increased factory wheel size.