 Speedo Error, Adjustments other than tire size? |
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| Van B |
 Oct 28 2021, 07:20 PM
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Senior Member  Group: Members Posts: 1,608 Joined: 20-October 21 From: Maryland Member No.: 26,011 Region Association: None 
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So, compared to GPS, my Speedo is consistently 5mph too optimistic. My tires are 195/65-15. I’ve read in other threads that has shown to be a good size for correcting error.
So, not really wanting to go taller still, is there any other way to calibrate the Speedo? Thanks, Van |
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Posts in this topic
Van B Speedo Error Oct 28 2021, 07:20 PM
Tdskip Bump, similar issue on the 1975. Oct 28 2021, 08:49 PM ClayPerrine The reason your speedometer is off is because the ... Oct 29 2021, 05:59 AM GregAmy :agree:
Or drive the stock speedo with a GPS/mec... Oct 29 2021, 06:38 AM Retroracer One of my "must try that one day" projec... Oct 29 2021, 09:08 AM Van B As an Air Force guy, I don't want to be any mo... Oct 29 2021, 10:48 AM
ClayPerrine
As an Air Force guy, I don't want to be any m... Oct 29 2021, 11:20 AM
lesorubcheek
As an Air Force guy, I don't want to be any m... Oct 29 2021, 11:20 AM ClayPerrine
[quote name='Van B' post='2956128' date='Oct 29 2... Oct 29 2021, 11:24 AM GregAmy After a while you get a feel for what RPM you are ... Oct 29 2021, 11:52 AM Van B Copy all Clay, I've done these calculations. ... Oct 29 2021, 11:27 AM Craigers17 "A 195/65/R15 has a rolling diameter of 25.0 ... Oct 29 2021, 02:50 PM Jamie
"A 195/65/R15 has a rolling diameter of 25.0... Oct 31 2021, 09:24 PM GregAmy Use the link that Clay provided above. Or try this... Oct 29 2021, 03:41 PM Van B My Porsche 996 was optimistic with OEM tires by ab... Oct 29 2021, 03:57 PM SirAndy I swapped to a 944 speedo (replaced the cone shape... Oct 29 2021, 05:04 PM Racer Of course, we are making a basic assumption:
That... Oct 29 2021, 06:19 PM L-Jet914 I currently have 195/65R15 tires on my 74 and the ... Oct 29 2021, 09:19 PM Van B
I currently have 195/65R15 tires on my 74 and the... Oct 29 2021, 09:37 PM Olympic 914 Running 225-50x16 and the heights is as close as I... Oct 30 2021, 06:49 AM Dave_Darling I only know of a few options correct your speedome... Oct 31 2021, 02:33 PM  |
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