TheRecklessEngineer Posted June 2, 2006 Share Posted June 2, 2006 Ive got a series speedo being run by a rangie autobox, with rangie diffs and 33" tyres. Quite understandibly its a very long way out - at least 30%. Anything I can do to correct this? Tip-ex on the dial is the favourite at the mo (mainly cos its the cheapest). Quote Link to comment Share on other sites More sharing options...
western Posted June 2, 2006 Share Posted June 2, 2006 Try changing the speedo drive gear for a 110 item frc3310 used with 7.50 & 235/85 & 255/85 tyres. Quote Link to comment Share on other sites More sharing options...
Paul Humphreys Posted June 2, 2006 Share Posted June 2, 2006 Have you tested it with a sat nav or gps to get a correct reading? But changing the drive gear is the best thing to try. Paul Quote Link to comment Share on other sites More sharing options...
Sharky Posted June 2, 2006 Share Posted June 2, 2006 I use my GPS for the Defender as over 100 kph it is like a wndscreen wiper, but generally reads 10kph over the real (GPS/actual) speed under 100 kph Quote Link to comment Share on other sites More sharing options...
BogMonster Posted June 2, 2006 Share Posted June 2, 2006 Bend the speedo needle Quote Link to comment Share on other sites More sharing options...
TheRecklessEngineer Posted June 2, 2006 Author Share Posted June 2, 2006 More for the shopping list then. Cheers guys! Quote Link to comment Share on other sites More sharing options...
Gnomeranger Posted June 3, 2006 Share Posted June 3, 2006 When my beastie is reading 17mph on the speedo, I am actually doing 30mph. Quote Link to comment Share on other sites More sharing options...
minivin Posted June 3, 2006 Share Posted June 3, 2006 depending if it's fast or slow, you can buy a motorcycle kph to mph converter gearbox, which is a little alloy gearbox that fits between the speedo head unit and cable, which reduces the input speed to make the reading in mph for a kph speedo. There may be a mph to kph converter if yours is presently under reading M&P in Wales or MPS (Thefastone, no, that's there name on the net!) used to stock them Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.