bigger tires change speedometer [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: bigger tires change speedometer


fitfarms
08-29-2004, 01:24 PM
I am changing the 245 factory tires with 265 and I was wondering the difference in mph and milage.http://www.dieselplace.com/forum/smileys/Big Smile.gif

Terrain Twister
08-29-2004, 01:32 PM
At 62 your actually going 65.


Noticed a slight drop at first but now it seems to be the same as before.

fitfarms
08-29-2004, 03:06 PM
thanks for the info i am waiting for my 05 dmax should be getting it here real soon cant wait.

snoman
08-29-2004, 03:26 PM
At 62 your actually going 65.


Noticed a slight drop at first but now it seems to be the same as before.

You just got used to it, because it will not auto adjust to it.

Terrain Twister
08-29-2004, 03:46 PM
No, it came back up, but so did my foot.http://www.dieselplace.com/forum/smileys/HiHi.gif Infact, it still keeps getting better with the mods as long as I keep my foot out of it (which is rare http://www.dieselplace.com/forum/smileys/HiHi.gif).

snoman
08-29-2004, 04:42 PM
No, it came back up, but so did my foot.http://www.dieselplace.com/forum/smileys/HiHi.gif Infact, it still keeps getting better with the mods as long as I keep my foot out of it (which is rare http://www.dieselplace.com/forum/smileys/HiHi.gif).

I assume you mean MPG then and not speedo, sorry.

fitfarms
08-29-2004, 04:49 PM
I mean miles you drive, how much are they off. Lets say i drive 1000 miles what would the mile meter say. If you would have an idea?

CYCLONE
08-30-2004, 09:16 AM
BUY A POWER PUP AND YOU WON'T HAVE TO WORRY IT WILL BE ACCURATE.

Scotty Seelen
08-30-2004, 11:21 AM
If the odometer reads 1000 miles, you would have actually went 1030 miles (3%).

BADDMAX396
08-30-2004, 10:11 PM
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<TD id=HB_Focus_Element vAlign=top width="100%" background="" height=250 UNABLE="off">With 265's you should be very close to being dead on. I have checked mine numerous times with a gps and 265's ( half worn) and it is within .31 of each other. Most all manufacturers put their speedo 3-4 miles an hour fast to cover themselves for speeding issues. What is cool is if you hook up a scanner and read actual values the speed sensor tells the correct speed but speedo is off 3-4.</TD></TR>
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T.P.N.
08-31-2004, 08:43 AM
http://www.1010tires.com/TireSizeCalculator.asp?action=submit