How much is your speedo out?

[fallmonk]

Just wondering how much everyones speedo is out ?
when compared to a GPS ie road Angel/Sat nav etc

Mine is about 3mph slower than the GPS gives it credit for!

 

[treblesykes]

my speedo doesnt agree with the DIS speed alarm, alarm is set at 100 but doesnt beep until speedo reads 105

 

[Mart]

That's about the same as mine, I have my set to 95, so it beeps when I hit 100, although it doesn't actually beep, just flashes, buzzor has gone or something!

 

[james0808]

My speedo shows 70mph my tomtom shows 68mph.Im happy with that considering i have 19's.

 

[Caesium]

I think you'll find that ALL speedo's are out by around 10%

 

[james0808]

I think you'll find that ALL speedo's are out by around 10%

How can they be,reading the figures on this thread i would say abit less.

 

[Just Plain Old]

Mine is about 3mph above the speed on the road angel.

 

[god_thats_quick]

Mine only over read by around 1-2 mph at 100mph, the thing is though it'll depend on tyre wear / pressure as well.

 

[C_Audiboy]

A few responses here..... http://www.audi-sport.net/vb/showthread.php?t=26519

 

[Mart]

As long as the speedo says your going fasther than you are, it's fine! Better then getting caught speeding cause you thought you were doing 30, when it was 35!

 

[A3-frankie]

mine is about 5mph out at 100mph. Ive found most cars to be the same. On my old lupo i went up a wheels size by 1 inch and the speedo was then perfect to the road angel.