Speedo WAY off!

[daniel]

my speedo reads about 4-5mph high + 4% because of undersized tires. kind of nice because when i am doing "70" i am actually closer to 60. no tickets yet...

[sector6]

same here, Almost all of the E30's ive owned have been at least 5mph off...

I'd love it if mine was only off by 5mph. 12 is a bit much and my front bumper in primer makes me look like I sell crack!

[bostonbmw]

there is a dial on the speedometer I think its a variable resistor, you can turn it to increase or decrease the actual speed displayed.

[Leaf]

just remember that ur speedo is off by that much and compensate.... they're not gonna pop you unless you TELL THEM YOU HAVE A BROKEN SPEEDO.

[sector6]

there is a dial on the speedometer I think its a variable resistor, you can turn it to increase or decrease the actual speed displayed.

...hmmm, that's interesting. Is that true? I'll look into that for sure. thanks 8)

[bostonbmw]

...hmmm, that's interesting. Is that true? I'll look into that for sure. thanks 8)

yes it is true of my 89 325i. I used a gps to verify in between adjustments.