Speedometer difference?

[03marauder]

Does anyone know how much the speedo will differ by changing from the stock tire size to the KDW 255/55/18 in the rear?

[dlginnc]

Does anyone know how much the speedo will differ by changing from the stock tire size to the KDW 255/55/18 in the rear?http://www.miata.net/garage/tirecalc.html

[03marauder]

Thanks you.


http://www.miata.net/garage/tirecalc.html

[LVMarauder]

Does anyone know how much the speedo will differ by changing from the stock tire size to the KDW 255/55/18 in the rear?
I just put KDW 255/55/18 on the back and they are huge, great looking tire. The grip is amazing too.

[03marauder]

Yeah, I'm getting the KDW2 installed on the front and rear tonight. I can't wait to see what the difference is.

[Cobra25]

I have the KDW2's on my Marauder front & rear. They ride smoother & grip better. It's a nice difference.

[mcb26]

Don't forget to adjust your headlights.

[Smokie]

Does anyone know how much the speedo will differ by changing from the stock tire size to the KDW 255/55/18 in the rear?
About 1.5 mph (faster) at 80 mph. Less at lower speeds. GPS vs. Speedometer.

[Rkammer]

About 1.5 mph (faster) at 80 mph. Less at lower speeds. GPS vs. Speedometer.
Right. It's actually about 1.5% faster at all speeds, so, about 1 MPH at 60 MPH.

[blackf0rk]

Use the following with this tire. When you're going ** - you'll be actually traveling **

10 - 10.15
20 - 20.3
30 - 30.45
40 - 40.6
50 - 50.75
60 - 60.9
70 - 71.05

[BruteForce]

Use the following with this tire. When you're going ** - you'll be actually traveling **

10 - 10.15
20 - 20.3
30 - 30.45
40 - 40.6
50 - 50.75
60 - 60.9
70 - 71.05


I smell a PCM reflash coming... :type:

Might as well have it tweaked (if and) when I get the A/F tweaked next.