carsarecool

iTrader: (1)

Haha, just re-read my title, no its not a thread of me trying a bikini bathing suit thats too small- lol anyway has anybody had, on any generation maxima, their speedometer off and need to be re-calibrated? Ive heard of this problem on the new altimas but not here, my g/f just got an 02 alti and we got next to each other on a straight highway, she was doing 75 and i was doing 70, so i was like no big deal, its off like most altimas. she has a loaner car due to a mix-up, its an 05 altima, tried it again and she did 65 while i was at 60. not sure what could cause that, i have OE stock 17's, havent had anything drivetrain-wise changed that i know of.

MaxHind

I dont know how to "tune" your spedo, I would also like to know. I replaced my 15'' with 16'' and my spedo is fast ~3-4mph. I drive long distances with GPS so I can get the exact speed to sly the cops.

CCS2k1Max

iTrader: (2)

A quick and dirty way to test it is between mile markers on the interstate using a stopwatch. Obviously, at 60 mph, the time should be 60 seconds. If it's close, you can test it for longer distances to get a better feel for it.

NYPD-Arnold

iTrader: (8)

Nah. Highway signs are so horrifically imperfect. Check your girlfriend's tire size and see if it's in spec.

But consider this..our true OEM tire size is 205/65-15. A 225/50-17 tire is actually out of spec by 1.4%.

http://www.miata.net/garage/tirecalc.html

CCS2k1Max

iTrader: (2)

OK, then make it the white markers the police use to catch speeders off airplanes. All you need to know is the spacing and I'm sure you'll tell us...

NYPD-Arnold

iTrader: (8)

I think it's a problem with his gf's car, imo.

Hoooper

you can get it calibrated at the dealer i think.

carsarecool

iTrader: (1)

both cars though? maybe. hers is getting checked this week so we'll see, keep ya posted

JEDI2002

I don't know how to tune speedo, I would like to know.

crosbyct

It is computer controlled so the dealer has to do it. I would check your tire height.