Tire size/Speedometer observation;
#1
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Thread Starter
Tire size/Speedometer observation;
My car has the stock tires/rims.
My speedometer is off by 2 Mph@60 (speedo reads 62Mph at a real world 60Mph.)
At 124 on the speedo I am moving at 121 on the GPS
(tested on the track of course)
Here's the twist:
When I am at speedo 22, I am moving at 20Mph on my GPS
Is this normal?
Does the 8 figure the correct speed and add two Mph?
My speedometer is off by 2 Mph@60 (speedo reads 62Mph at a real world 60Mph.)
At 124 on the speedo I am moving at 121 on the GPS
(tested on the track of course)
Here's the twist:
When I am at speedo 22, I am moving at 20Mph on my GPS
Is this normal?
Does the 8 figure the correct speed and add two Mph?
Last edited by Rote8; 03-11-2008 at 01:12 AM.
#2
Registered
My car has the stock tires/rims.
My speedometer is off by 2 Mph@60 (speedo reads 62Mph at a real world 60Mph.)
At 124 on the speedo I am moving at 121 on the GPS
(tested on the track of course)
Here's the twist:
When I am at speedo 22, I am moving at 20Mph on my GPS
Is this normal?
Does the 8 figure the correct speed and add two Mph?
My speedometer is off by 2 Mph@60 (speedo reads 62Mph at a real world 60Mph.)
At 124 on the speedo I am moving at 121 on the GPS
(tested on the track of course)
Here's the twist:
When I am at speedo 22, I am moving at 20Mph on my GPS
Is this normal?
Does the 8 figure the correct speed and add two Mph?
#4
Registered
It's not a fixed 2 mph. At 25 mph, mine reads high by about 2 mph. At highway speeds, it's 3 to 5 mph high. I'm still on the OE tires, and keep the pressures at the specified 32 cold.
I think that's consistent with most of the speedo error posts.
Ken
I think that's consistent with most of the speedo error posts.
Ken
#5
My 8 looks like a Smurf
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It's off by 4% -- the legal maximum (I believe)
4% above or 2% below -- funny how that works out isn't it.
Why? To run out the warranty faster, of course. There were lawsuits in the US about this with most major car companies last year. Don't have links handy but I'm sure you guys can find it.
/just because you're paranoid don't mean they're not after you
4% above or 2% below -- funny how that works out isn't it.
Why? To run out the warranty faster, of course. There were lawsuits in the US about this with most major car companies last year. Don't have links handy but I'm sure you guys can find it.
/just because you're paranoid don't mean they're not after you
Last edited by TheWulf; 03-11-2008 at 10:54 AM.
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