My 07 GT speedo reads about 3 mph faster at 60+ mph, so 65 mph on the speedo is really about 62-63 mph using GPS.
Is GPS more accurate than the speedo?
I was told GPS is much more accurate, and I have noticed that even though my speedometer shows I am doing the speed limit, everyone is still passing me or tailgating me.
Haha well if you are doing the speed limit, I would be passing or tailgating you as well.
It seems to me like GPS wouldn't be accurate enough for speeds in cars because of any slight delay or tranmission errors in communicating with the satelittes. Seems like the most accurate measure would be from the tires that touch the road, but that also requires the correct calibration. Don't know...just rambling.
My Garmin GPS claims an accuracy of +- .05 meters/second. That's pretty accurate. I use it all the time on the highway and hiking.
My Garmin GPS claims an accuracy of +- .05 meters/second. That's pretty accurate. I use it all the time on the highway and hiking.
Interesting. What sort of Garmin? My girlfriend has one of the cheaper models that is designed to sit on a car windshield. I don't know what accuracy it claims, but just in watching it, I figured it wasn't that useful. Seemed to update too infrequently and seemed sporadic.
No need to shout.THE 2005 MUSTANG GT HAS A 5TH GEAR RATIO OF 0.68:1 WITH THE 3.55:1 WITH
THE 3650. THE GT'S WITH THE 3.31 HAVE A 5 RATIO OF .71:1
THE 2000 MUSTANG GT HAD A REAR GEAR RATIO OF 3.27:1 WITH .67:1 5TH RATIO
SOME SIMPLE MATH AND THE 2000 MUSTANG GT HAS A LOWER DRIVING RPM AT THE SAME SPEED IN 5TH
The original 2000 Mustang GT had 16" tires(17" on the mid-year and later models). So if it had a 3.27 gear like you say, then that would translate to an approx. 3.47 gear with 17" tires. And that would make the rpm's at 68 mph very close to the 2007 GT with 3.55 gears(assuming it has 17" tires).
Whoops, you're right. However, the end result is the same.Er, the 2000 mustang had 16" wheels, while the mid year had 17", but the tire diameters were likely identical.What were the tire specs for those?
And when my speedo reads 70, I'm doing ~68 mph. pretty common, you won't find cars that read exactly right from the factory. They all indicate a bit higher.
Tom
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