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How accurate is your speedometer?Posted:

JZX
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So I drive a car from 1999 with an analog speedo and every passenger I have always tells me I'm speeding but the speedo is like 10mph out of it's true speed.

Do you actually drive true to the needle or go over?
#2. Posted:
002
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I have 3 speedometers in my truck so I know exactly what speed I'm going lol. I don't go by the needle any more because I put on slightly bigger tires than factory so the speedo is roughly 4% off, however my other 2 are always right on the money. One is from my GPS and the other is from my Edge Insight CTS 2 monitor in case you were wandering.
#3. Posted:
2-step
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my speedo is about 5mph faster than what i'm actually doing, from putting my wheel and tire setup on
#4. Posted:
uwu
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To be honest, I haven't done any performance mods to my car so I believe that my speedometer is marking close to or exactly the speed my car's actually going.

I could be wrong though, my car's a 3,500 pound luxury cow.
#5. Posted:
Dana
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322 wrote
280z wroteI would say my car goes further than the max because I added headers, and a performance exhaust system sooo

Is english your second language? Every thread I see you comment on your reply has almost nothing to do with the question. It's like you half read the title and then just comment while you make up the rest of the thread in your head.
And no, your car doesn't go past the max speed on the speedometer just because you added headers and an exhaust.
Although you aren't wrong, chill fam.
And my speedometer is usually accurate on the dot. If it's off, it's only a few mph.
#6. Posted:
Soak
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322 wrote
280z wroteI would say my car goes further than the max because I added headers, and a performance exhaust system sooo

Is english your second language? Every thread I see you comment on your reply has almost nothing to do with the question. It's like you half read the title and then just comment while you make up the rest of the thread in your head.
And no, your car doesn't go past the max speed on the speedometer just because you added headers and an exhaust.


But wait...
You didn't respond with anything relevant to the post either.. hypocrite.
#7. Posted:
B19
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280z wroteI would say my car goes further than the max because I added headers, and a performance exhaust system sooo

I doubt it, at best you probably gained a bit of power but that doesn't mean it'll go past the limiter unless you get a tune.
#8. Posted:
AD4M
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My car ideals below 0mph so I'll never know haha
#9. Posted:
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I'm pretty sure mine is fairly accurate, doesn't seem to show any signs of being off I also drive a 2000 Honda if you needed to know!
#10. Posted:
Craig
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I have both electronic reading and analog. So I hope one of them is accurate at lease.
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