Yes. The first number is the only one that we need to worry about. 10 is not nearly enough to make that sort of difference

I smell a Canadian car or at least a replacement canuck cluster.

That'* the only thing I could think of...I think he'* leaving out some important information.. Maybe he doesn't even KNOW he has a Canadian cluster. "Hey look I'm going 170mph!"

it'* me with the speedometer that'* off, my dad bought the car new in 1996, the speedometer is in mph, one day i was driving down my street and the cops had set up one of those radar diplay trailors that tell you how fast you going.....so i made sure my speedo was at exactly 30mph and the radar said 17mph, there was no other cars around to confuse the reading with either.

me and insane lss also did a test where he drove next to me at 45mph and my speedo said like 60mph, so i have no idea what is going on

also my dad has sworn since the day he bought the car that the speedo was 5mph off, but we never confirmed that.

is it possible that at the factory the put in a kph computer or sumthing and even though my gauges are ment to read mph they read in kph? also does the odometer go off of the mph or does it take a seperate mesurment of distance

Well you're saying your dad swore the speedo was off by 5, but you're saying it'* now off by 13. I was actually going to ask how you knew your speedo was off, and if you were driving by a radar like that.

I'd find it hard to believe that anything went wrong when the car was built, but the speedometer moves exactly the same in an American car as in a Canadian car since both sets of numbers are on the speedo. It'* not like the new speedos that have one set of numbers and the needle can change position drastically when you switch back and forth between mph and kmh. Your speedo reads in both mph AND kmh, not one or the other...it just depends on what set of numbers you're looking at.

I hope you get what I'm trying to say. In other words, the only difference I would think, between a Canadian cluster and American, would be that kmh are the top set of numbers (and the other gauges like temp, oil pressure, and boost, if you're lucky, are in metric). And of course the odometer. There'* no kmh computer in the speedometer. Can anyone else confirm what I'm trying to explain. This thread is like the twilight zone I hope I'm making sense.

I don't know what'* up. When you were driving 30mph and the radar said 17, did it FEEL like you were driving 30, or 17? Because that'* a big difference and you should be able to tell if your speedo was right and the radar was wrong.

Well, when he'* driving and I'm in his car, sometimes it feels like we're barely moving, like we're going 33 mph in a 35 zone. Then I look at his speedo to see how fast were going so that I can tell him I'd like to make it there today, not tommrow, but it'll be reading 48-50 mph.

Or if I'm driving behind him, he consistantly goes under the speed limit by 2-5 mph, and when I ask him how fast he was going, he'll say his speedometer was reading 5-10 over the limit.

One time he was in a 45 and I was behind him, and I swear he was crawling, and I was a little annoyed he was going so slow, but he told me his speedometer said he was going 60 and he didn't want to go any faster.

I think a GPS would be a good idea, but I don't know anyone with a GPS unit (I'll have to ask around), and they're not cheep. Maybe we'll just have to pick a late night and get going right next to each other on a 4 lane road and compare speedometer readings between our cars to be sure how far off his speedometer is at different speeds.

maybe get a scantool and see what the PCM is reading off the VSS, the cluster may be wacked

Sounds like a great idea. I'd pull the VSS (vehicle speed sensor) & clean any crud off it. Also check the wiring connectoins at the sensor.

I thought about doing that for him, but then I thought, the speedometer reads what the computer sees, so what would be the differance? It'* pointless.

But, I guess that'll check the integrity of the cluster. One more thing to do.