I know its accurate up to ~45 or so.. Ive compared it a few times to those 'speed check' radar signs that cops set up around here and there (shows your speed..) and its within 2-3 MPH each time
3.73 gears, 23 spline speedo gear..
however on the highway it never seems right.. and on the .. ... track when I floor it (I have time slips up to 112 MPH.. ) it rarely creeps up past 80.. and on the highway I can go up 2-300 RPMs on the tach, and the speedo stays right around 70..
anyone have any ideas? hanging cable? (I doubt it, makes no noise + it shows lower speeds..) could I have a weak cluster?
2012 IS F Blue IS F Sport
2006 Mustang V6 wannabe