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Today's topics:
* Northern Virginia Shop - 1 messages, 1 author
http://groups.google.com/group/rec.autos.makers.honda/t/1026ea34a79e18f5?hl=en
* Speedometer error - 2 messages, 2 authors
http://groups.google.com/group/rec.autos.makers.honda/t/dd0e0cb203486443?hl=en
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TOPIC: Northern Virginia Shop
http://groups.google.com/group/rec.autos.makers.honda/t/1026ea34a79e18f5?hl=en
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== 1 of 1 ==
Date: Sun, Nov 29 2009 8:52 pm
From: UndisputedAutosport
With eight years experience, multiple ASE and Master certifications I
decided to open my own shop here in Northern Virginia (Sterling to be
exact). I'm seeking out eager car owners to sponsor. What I'm offering
is to supply parts and labor at cost to motivated car enthusiasts.
This offer isn't limited to Honda owners exclusively, any performance
car will do. In exchange for the exorbitant discount, I ask that the
car and owner be available at shop events/outings and tastefully
display my shops logo and number on the car.
I urge you to check out my web page at www.UndisputedAutosport.com or
contact me at either (703)509-2584 or Justin@UndisputedAutosport.com
Thanks for your interest,
Justin Morrow
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TOPIC: Speedometer error
http://groups.google.com/group/rec.autos.makers.honda/t/dd0e0cb203486443?hl=en
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== 1 of 2 ==
Date: Mon, Nov 30 2009 6:29 am
From: Tony Harding
dold@78.usenet.us.com wrote:
> Tegger <invalid@invalid.inv> wrote:
>> in all GPS's. GPS satellites are the property of the US Department of
>> Defense, and the military doesn't want you having the same thing they've
>
> Bill Clinton ended that silliness in 2000.
> http://www.navcen.uscg.gov/GPS/selective_availability.htm
>
> Any current GPS will have a steady state speedometer accuracy of .1mph.
Thanks for the link.
:)
== 2 of 2 ==
Date: Mon, Nov 30 2009 9:10 am
From: "C. E. White"
"E. Meyer" <epmeyer50@gmail.com> wrote in message
news:C72772A2.141DC%epmeyer50@gmail.com...
>
>
>
> On 11/16/09 7:46 PM, in article NfnMm.35145$de6.3110@newsfe21.iad,
> "Piperson" <ppsn168@yahoo.com> wrote:
>
>> Surely you jest!!!
>>
>> Certainly GPS's are not "definitively" accurate with locational
>> information, but the time traveled between too "not-so-perfect"
>> locations should be dead on. Speed indications should be very
>> accurate
>> compared to most automotive speedometers.
>>
>> Also, I am sure car makers would not design in inaccuracy to
>> "account
>> for liability laws", leaving themselves open to lawsuits for short
>> changing owners of warranty limits. If the meter is reading too
>> high,
>> the odometer is approaching the warranty limit too fast.
>
> And Honda lost a class action suit for exactly that reason several
> years
> ago. The warranted mileage on my '06 CR-V was extended as part of
> that
> settlement.
An odometer that over reports the mileage makes the gas mileage look
good also.
However, speedodometer and odometer errors are not always directly
linked. I check all mine versus measured miles, the GPS, know
distances, and the interstate mile markes. The last five Fords I owned
all under reported the mileage traveled (by 1% to 3%) and over
reported the speed (by 1 to 3 mph).
I beleive the GPS is very accurate for both speed, and measuring
longer distances. I checked the GPS over the same course multiple
tiems, and there is no significant variation in the distance reported.
If, you leave the GPS in one position for a long period of time, it
will report slight movement, but this doesn't affect the accuracy for
a single trip over any significant distance.
Ed
>
>>
>> Lastly. A very easy method of determining speed is by the time is
>> takes
>> to go between mileage markers on most highways. At 60 MPH one mile
>> should take exactly 60 seconds.
>>
>> On 11/16/2009 8:06 PM, Tegger wrote:
>>> Nasty <nasty@tampabay.rr.com> wrote in news:4b01c85e$0$4857
>>> $9a6e19ea@unlimited.newshosting.com:
>>>
>>>> My 2000 Accord speedometer is off by about 8 mph according to my
>>>> gps.
>>>> It's kind of a good thing, it'll read 70 but I'm actually doing
>>>> about
>>>> 62. Is there a fix for this?
>>>>
>>>> TIA
>>>
>>>
>>>
>>>
>>> GPS's are not definitively accurate. There is a fairly large
>>> built-in error
>>> in all GPS's. GPS satellites are the property of the US Department
>>> of
>>> Defense, and the military doesn't want you having the same thing
>>> they've
>>> got for reasons of national security. This is outlined in all the
>>> new-car
>>> PDI docs issued by Honda for vehicles that have NAVI.
>>>
>>> In addition to that, speedometers are designed to be "fast" on
>>> account of
>>> liability laws. Add the two together, and it could well be 8mph at
>>> 62 or
>>> 70.
>>>
>>> If you really want to know your car's speedo/odo accuracy, you
>>> need to
>>> spend some time with a piece of chalk and a long tape measure.
>>>
>>>
>
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