16v speed and speedo

[beechymonza]

hi there i just got back from torquay, I noticed this before but decided 2 put it on here, when in 5th gear my rev counter and speedo follow each other around at the same pace,
At 3000 rpm im doin 60
At 4000rpm = 80
At 5000rpm = 100
At 6000rpm - 120
At 7000 rpm = 140

They are at the exact same position on there own clocks all the way around,
Anybody else noticed this

[jezza16v]

That's about right, 20mph/1000rpm in top gear. You're lucky to have a 16v speedo that doesn't over-read by too much.

[beechymonza]

So i should be able 2 hit 160mph on 8000 rpm, lol
With my foot flat down an drivin off a cliff