Reply to "How to tell if speedometer is way off?"

scottcarMember

I know this isn't the best way but here is how I did it..

I have one of those Garmin GPS recievers. There is a mode that will display the current heading and speed. There is a little lag but if you are keeping your speed pretty steady it should be fairly accurate.

Mine sits on that little shelf to the left of the tach. Well as long as I don't accelerate too fast it does...

Anyway now I know why my speedo said 75 and all those mini-vans were still passing me.. Mine is off by close to 10 mph!

Scott
#1523

2/25/029:21 AM

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