Speedo Accuracy

[Ajax_Prime]

In scrolling thru page upon page of pics, something hit me this morning. Are all you guys just upgrading the tires and living with the inherent speedo inaccuracy? Or am I missing something here?

[toysupra1]

according to the gps system check on my eclipse avn6600 head unit, my speedometer is off by about 4%. keep in mind that i'm still using the stock tire size too.

[TucsonTRD]

the bigger tires only put my over the speedo slightly, i'm sure i was under before the tires. right now with the speedo saying 60 i'm going about 61-62, as per the handheld gps

[Marc M]

I just calibrated my SGII for the proper speed. With 265/75/16's my speedo is off 2 - 3 mph depending on the speed I am traveling.

Marc M

[PiercedTiger]

I have a Scangauge on the dash against the driver's side pillar and that's calibrated to make up for the 7% change from my tires. I watch that for speed, and round up my mileage for travel reimbursement. About an extra 7 miles for every 100, or just add on 3-5 here and there before I submit it to my boss.