navygz19 Posted May 1, 2006 Share Posted May 1, 2006 I had the feeling it was reading 5 mph too fast (especially when I would run past one of those Police Dept. trailers with the radar gun thingy on it that says "Speed Limit, Your Speed" and I always seemed to slow down too much ) So I paced my wife when she was driving and sure anough... 5 mph. off. Interesting. It's not a big deal, kind of interesting tho. Any other R50's here have a bum speedo? And no, I didn't replace tires...in fact, I still have stockers on the thing. Link to comment Share on other sites More sharing options...
Pezzy Posted May 1, 2006 Share Posted May 1, 2006 hmm... maybe replace the tires then... Link to comment Share on other sites More sharing options...
nycxice13 Posted May 1, 2006 Share Posted May 1, 2006 Nope not me, then again Im gonna have to check now. Link to comment Share on other sites More sharing options...
navygz19 Posted May 1, 2006 Author Share Posted May 1, 2006 (edited) hmm... maybe replace the tires then... I like my Baldie Bridestone's, tho. All joking aside, I AM pretty impressed w/ the longevity I got out of them. Then again, I've only had the thing 3 months and the previous owner never wheeled it (I don't think) They're not worth a crap offroad though :oops: Edited May 1, 2006 by navygz19 Link to comment Share on other sites More sharing options...
MellowCat Posted May 1, 2006 Share Posted May 1, 2006 YES, mine was off till I got new tires. Right around 5mph too. The stock tire is a really weird size, I wonder if Nissan messed up. Link to comment Share on other sites More sharing options...
vengeful Posted May 1, 2006 Share Posted May 1, 2006 Nope...no mix up. Most automakers set the speedometer to read high in a futile attempt to lower highway speeds. Link to comment Share on other sites More sharing options...
XPLORx4 Posted May 2, 2006 Share Posted May 2, 2006 (edited) How do you know your other car's speedometer is accurate? Maybe yours is 2.5mph off, and the other is 2.5mph off in the other direction. Also, note that the error isn't a fixed mph value, it's a percentage of your current speed. If your speedometer is off 5mph at 50mph, then it will be 2.5mph off at 25mph, and 10mph off at 100mph. Increasing or decreasing tire size as appropriate will partially mitigate the error. Edited May 2, 2006 by XPLORx4 Link to comment Share on other sites More sharing options...
navygz19 Posted May 2, 2006 Author Share Posted May 2, 2006 How do you know your other car's speedometer is accurate? Maybe yours is 2.5mph off, and the other is 2.5mph off in the other direction. Possibly...though a little too ironic I think. But as I said before, when I go by one of those radar-ed Police Dept. Trailers they ALWAYS read 5 mph off...and there's a lot of them here (I'm next to Virginia Beach) Link to comment Share on other sites More sharing options...
90seven Posted May 3, 2006 Share Posted May 3, 2006 Does it read faster or slower than what the truck reads? Link to comment Share on other sites More sharing options...
OzMattie Posted May 3, 2006 Share Posted May 3, 2006 Put 31's on it should be spot on. Mine was out now with the 31's it is spot on. Link to comment Share on other sites More sharing options...
navygz19 Posted May 3, 2006 Author Share Posted May 3, 2006 Does it read faster or slower than what the truck reads? slower Link to comment Share on other sites More sharing options...
stevebaz Posted May 3, 2006 Share Posted May 3, 2006 At 70 mph my 2001 reads 5 mph off according to gps and i have the stock 16 inch tires getting close to the wear bars. At 70 i am only going 65. stock pathfinder SE with 43,000 miles. Link to comment Share on other sites More sharing options...
navygz19 Posted May 3, 2006 Author Share Posted May 3, 2006 IT'S A CONSPIRACY I TELL YOU!!! :furious: :o Link to comment Share on other sites More sharing options...
88pathoffroad Posted May 4, 2006 Share Posted May 4, 2006 Remember that new tires have a good 1" more diameter than worn-out tires due to the new, non-worn-out tread blocks. There's your 5 MPH. Link to comment Share on other sites More sharing options...
navygz19 Posted May 4, 2006 Author Share Posted May 4, 2006 Remember that new tires have a good 1" more diameter than worn-out tires due to the new, non-worn-out tread blocks. There's your 5 MPH. Yeah your probably right 88...I'm sure that's what it is. Link to comment Share on other sites More sharing options...
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