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Anybody knows how the speedometer works? what happens when you hit the stopper right after 150mph? would it break? or would the speedo simple stop as the car continues to speed pass 150mph?
It just stops at the needle stop. May cause internal spring damage if left there for long time or constantly hitting the stop, but I doubt that happens much.
hmm.... I guess no chance of hitting 180 without damage the speedo then.. Can't believe the top speed is dictated by the speedo... usually it's the other way around.
Quoting Yao:
hmm.... I guess no chance of hitting 180 without damage the speedo then.. Can't believe the top speed is dictated by the speedo... usually it's the other way around.
Um, yea, you better have something else than a B16G to hit 180......
Mine has seen 167 and 173 via GPS and comes down from those speeds perfectly. Its hard to account how fast you really are going until you let off and its still buried for a second or two. /ubbthreads/images/graemlins/blush.gif
The speedometer needle isn't directly attached to the shaft, so nothing can break. It is attached to a freely rotating metal "cup" which is preloaded counter-clockwise by the spring and getting pulled clockwise by the two magnets driven by the input shaft, which also actuate the reed switch. It's a rather simple and imprecise system, thats why those old speedos are as accurate as a moon-calendar and got replaced by moving-coil instruments in the mid/late 1990's models.
The needle will just stop at the stop pin right above the temperature gauge. At my FWD Galant the needle always stopped right above 240kph but I had >280kph readings on gps and evoscan logs (which are calculated from the reed switch signal) multiple times... As soon as the speed drops the needle will again follow the actual speed.
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