120Mph SPEEDO QUESTION!

[silicuda]

I presently have a 110Mph speedo.

If I change this to a 120Mph speedo what will happen? Will it read slightly less than what the actual speed really is, or more than what the speed is?

Let me know

Thanks

[cassie]

It will read that you are going faster than you really are

[HAZ-Matt]

Why do you say that Cassie?

I was under the impression that the vehicle speed signal was the same for all the gauge clusters...

For example, if I went froma 120-155mph, my speedometer would be correct, but the tach would be wrong, since it is expecting pulses from 8 cylinders instead of 6...

Did they have different speed signals for the 110 and 120mph guages?

[cassie]

if my thinknig is correct

the half circle type thing that READS the speed you are going is the same length no matter how fast u go..it doesn't make a complete circle. For examply my mom's car goes to 85mph......but it stops ready @ the same point on the dash.....as mine does when it reads 120
ahh....i could be thinking the wrong thing

[silicuda]

i think cassie is correct, it would show more by 1-2mph or so if i put the 120MPH in there instead of the 110Mph...