abarlas

I have a 87 se model with standard rims and tires. When I'm going 70mph the speedo says 80mph? Anyway to fix that?

Rxmfn7

iTrader: (4)

How do you know how fast you are actually going?? If it is the speedo problem, I think you can get it re-calibrated, you need to take it to a shop I think, maybe someone else can elaborate because Im not too sure how that works.

Rotorific

iTrader: (1)

You could possibly swap out speedo cables

abarlas

I had my wife drive another car which was going 70, but the rx-7 said 80.

KNONFS

iTrader: (14)

My 91 is off by 5 mph, based on the same technique that you used.

Scott 89t2

they are probably both off by 5

every car speedo is off by a bit. that's why cops normaly give you the 10mph over or so range before giving tickets.