Forums Forums Enthusiast Forums A - Z Autowirral speedo's (not the one's your dad wears)

if you put bigger wheels on your car, will your speedo say youre going slower or faster than you actually are?
I thought it'd be slower.
eg speedo says 30mph, youre really doing 25mph.
I know its a big difference in speed, but its only an example.

Please help, i think i was flashed by a camera!

other way round if ur doin 30 u could be doin 31/32 ish.
u can buy a little gizmo to fix the problem, but i carnt rember wot its called man

Three words; Global Positioning System

A GPS will tell you exactly how fast you're going. Get one of those bluetooth camera detector things, which is a GPS that tells you how fast your going (spot on) and where all the cameras are. My dad's got one it's fantastic!

You could also get someone to clock you at different speeds, then write down what your speedo says at that speed and use that as a template to design your own dial, my mate did it to his 4x4, looks mint and works a treat!

BTW Pengu is right, it is the other way around

i'v been flashed by gatso's 3 times an my speedo sed i was fine so watch out i have't got a ticket but they still flashed

ps i'v got 17" on my escort

thanks for the advice guys