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Speedo's accurate!
https://www.slantsix.org/forum/viewtopic.php?t=23261
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Author:  Jopapa [ Sun May 20, 2007 5:12 pm ]
Post subject:  Speedo's accurate!

Well, sort of. I used the mile markers on the highway to gauge the accuracy of my odometer, and after five miles, my odo. was up only a tehnth of a mile, so 2% fast after doing the math. I'm surprised that when the rear axle w/ 3.55s was installed, they put in the appropriate speedo pinion gear. Just to make absolutely sure, I'll be verifying the gear ratio tomorrow when I have the car up on a lift. The tag says 3.55, but I think I'd be wise to make sure it's right. If it is, 17 MPG when it was out of tune for half the tank is pretty good!

Author:  slantvaliant [ Sun May 20, 2007 5:25 pm ]
Post subject: 

I use a GPS to check speed and distance, and to set the cruise in the assorted vehicles I drive.

Author:  Jopapa [ Sun May 20, 2007 5:47 pm ]
Post subject: 

Quote:
I use a GPS to check speed and distance, and to set the cruise in the assorted vehicles I drive.
Wassamatta, you not in tune with the old skool? :P

I've got a GPS for my laptop, but I have yet to find a 12V power supply that'll work with it without having serious issues.

Author:  emsvitil [ Sun May 20, 2007 5:50 pm ]
Post subject: 

Vary rarely are both the speedometer and odometer correct (or the same percentage off)


My odometer is within 1%, the speedometer 5-8% high..........

Author:  slantvaliant [ Sun May 20, 2007 8:23 pm ]
Post subject: 

Quote:
Wassamatta, you not in tune with the old skool? :P
My daily driver is a '64 Valiant - How "old school" can I get? :wink:

The kids gave me a Garmin Etrex for father's day a couple of years ago, and it's been a lot of fun and very useful. I would like to get a WAAS-enabled GPS with compass for geocaching, but this one works.

For what it's worth, open road racers use GPS's to track their average speeds. The older Garmin GPS III-Plus still reads to 0.1 MPH at over 100 MPH! :shock: :D

Author:  sethmcneil [ Sun May 20, 2007 10:06 pm ]
Post subject: 

Quote:
The older Garmin GPS III-Plus still reads to 0.1 MPH at over 100 MPH! :shock: :D

...I'll bet that's something you have yet to tell your wife isn't it

Author:  stuggin [ Mon May 21, 2007 12:10 am ]
Post subject: 

Quote:
My daily driver is a '64 Valiant - How "old school" can I get?
Not as old school as me! hehehe :twisted:
Reppin the 62

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