No_Strings
Premium,Mod
join:2001-11-22
The OC | reply to THUD300
Re: How do you determine if your speedometer is accurate?
A most excellent suggestion. |
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Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
clubs:
| said by No_Strings  :A most excellent suggestion. I'd guess he completely glazed over this post of yours
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What’s the point of owning a supercar if you can’t scare yourself stupid from time to time? |
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lotusracer
Premium
join:1999-11-26
Moline, IL
| reply to Doctor Olds
said by Doctor Olds :Don't know where they are in relation to you but: Speedometer & Clock Co 2337 S. Michigan Ave Chicago, IL 60616-2104 (312) 842-6377 I have used them in the past, but it is my belief that they are no longer there, or even in business at all. Think I tried calling them some time ago and the number was no longer in service.
Just tried calling that number and got a fax tone.
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Humanity - The greatest natural disaster of all time. |
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Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
clubs:
| said by lotusracer :said by Doctor Olds :Don't know where they are in relation to you but: Speedometer & Clock Co I have used them in the past, but it is my belief that they are no longer there, or even in business at all. Think I tried calling them some time ago and the number was no longer in service. Just tried calling that number and got a fax tone. That is bad news.  I guess their niche market is drying up.
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What’s the point of owning a supercar if you can’t scare yourself stupid from time to time? |
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vircotto
join:2002-06-04
Illinois | reply to vircotto
If the other place (AJR Radio & Speedometer Inc) doesn't pan out, I guess I'll have to buy a GPS for my brother for Christmas and "test" it for him to make sure it works.  |
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lotusracer
Premium
join:1999-11-26
Moline, IL
| reply to Doctor Olds
said by Doctor Olds :said by lotusracer :said by Doctor Olds :Don't know where they are in relation to you but: Speedometer & Clock Co I have used them in the past, but it is my belief that they are no longer there, or even in business at all. Think I tried calling them some time ago and the number was no longer in service. Just tried calling that number and got a fax tone. That is bad news. I guess their niche market is drying up. It is bad news. I sent them the speedometer from my Esprit several years ago when the odometer quit. The repair cost me $50. Had the thing back in around 7 days.
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Humanity - The greatest natural disaster of all time. |
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peterboro1
join:2006-11-03
Peterborough, ON | reply to vircotto
Get an E-Test the dyno should read your speed to compare to the speedo assuming the dyno is accurate. |
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Vamp
5c077
Premium
join:2003-01-28
MD | reply to vircotto
I kind of hate the fact it can be off, that means when your car is at 100k it could really be +/- a few percent.
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20/20 FIOS || MSN Msgr: scott001^gmail_com |
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VegasMan
Are We There Yet?
join:2002-11-17
Schaumburg, IL
 ·AT&T Midwest
| said by Vamp :I kind of hate the fact it can be off, that means when your car is at 100k it could really be +/- a few percent. Honda had a problem with this a few years back.
»www.autoblog.com/2007/02/19/odo-···on-cars/
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In need of a Vegas vacation.
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puzz1ed
join:2005-02-20
Markham, ON
| reply to Waterbug
said by Waterbug :Your speedometer and odometer run off of the same gears.
This may be true but the speedometer can still be off. At highway speed, our analog speedometer is always about 10km/h over. (verified with GPS) I always wondered if the digital odometer was off as well but on a trip from Detroit to Toronto it was dead on. The mile markers start at zero when you cross the border and highway 401 starts so it was easy to verify. It's a Volvo so it may be related to the post about Germans cars being possibly over by design. |
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ke4pym
join:2004-07-24
Charlotte, NC | reply to vircotto
"So, officer, how fast do YOU think I was going?" |
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jaa
Premium,MVM
join:2000-06-13
 ·Optimum Online
 ·Vonage
1 edit | reply to vircotto
Drive a steady 85 down the highway. I'm sure a trooper will be glad to tell you how fast you were actually going.
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NOTHING justifies terrorism. We don't negotiate with terrorists. Those that support terrorists are terrorists. |
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Karride
Slower Traffic Keep Right
Premium
join:2000-04-17
Germantown, TN
·AT&T Southeast
 ·Dish Network
| said by jaa :Drive a steady 85 down the highway. I'm sure a trooper will be glad to tell you how fast you were actually going. All joking aside, I have on a couple of occasions with my project car pulled up to an officer clocking people on my street, and asked if he would clock me as I go by so I could determine my speedo's accuracy. Both times the cop was quite willing to help with this. |
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Waterbug
join:2008-03-30
| said by Karride :said by jaa :Drive a steady 85 down the highway. I'm sure a trooper will be glad to tell you how fast you were actually going. All joking aside, I have on a couple of occasions with my project car pulled up to an officer clocking people on my street, and asked if he would clock me as I go by so I could determine my speedo's accuracy. Both times the cop was quite willing to help with this. And then wrote me a ticket for being 10 mph over.  |
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lotusracer
Premium
join:1999-11-26
Moline, IL
| reply to Karride
said by Karride :All joking aside, I have on a couple of occasions with my project car pulled up to an officer clocking people on my street, and asked if he would clock me as I go by so I could determine my speedo's accuracy. Both times the cop was quite willing to help with this. In the distant past, I asked for the same favor and my request was denied.
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Humanity - The greatest natural disaster of all time. |
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vircotto
join:2002-06-04
Illinois
| reply to vircotto
Well, for what it's worth, I found that a friend did have a GPS he uses only occasionally. I borrowed it this morning and found that according to the GPS, my speedometer shows me going 6-7% faster than I am actually going. (E.g. my speedometer says 65 mph, the GPS says 61 mph.)
Thanks again for the tip about using a GPS. |
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Count Zero
MD2Be
Premium
join:2007-01-18
Warner Robins, GA | reply to vircotto
Have my brother or step-father track my car with their radar while driving 60mph and let them tell me what they measured my speed at. |
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