If so has anyone got a database of 100cm wide (4 inches) speedos that have a relevent ref no nearer to my ideal? Thanks _ Dinalpin Berlinette (Alpine Renault A110) peter scott Joined: Posts: 5713 Location: Edinburgh Posted: Fri 3:56 pm Post subject: Hi Tony, This might help: You can do minor re-calibrations by driving through these 'Your Speed' signs and noting your current speedo reading. One web site I have found suggests that the 1280 should be increased by 20% equating to 1536 - do the experts here agree?
My present model has the following on it SN 6144 2685 1280 and I assume the final 4 figures are the revs per mile. I know I can get the instrument recailbrated by the likes of Speedy Cables etc but I thought I would first see if there is a generic speedo which would be suitable. However it would be nice to get something more accurate. >Author Message TonyBrooks Joined: Posts: 110 Location: Maidenhead Posted: Fri 1:03 pm Post subject: Understanding Smith's Speedo Reference Nos My present speedo reads some 20% fast - I have got round this by sticking a piece of paper over the printed figures showing the 'true' speeds. Understanding Smith's Speedo Reference Nos Classic cars forum & vehicle restoration.
