Are these Speedo vs GPS results normal?
So I borrowed a buddies handheld GPS to test my speedo and got some results I wasn't expecting.
At low speeds like 15 MPH actual speed was a touch lower by 1.5 mph
At medium speeds 40 MPH Actual speed was bang on.
At higher speeds 60 MPH actual speed was touch higher 1.5 MPH
I was wondering if this is correct or if I made a mistake?
I have tires which are oversized 30.5"
Also does the speedometer and odometer receive the same data or are they different somehow?
2000 Lmt. V8 QD, 3.25"/2"F/R, 2" BDS, Bilsteins, JKS Tr Bar, Addco Rear Sway on 31's