Post of all Rims and Tires out there!

[tom4bren]

Really? With only half an inch. I figured it wouldn't make any difference at all. Thanks.

Remember that the speedo is really just measuring the RPM of the tire & converting that to rate for distance traveled. Likewise, the ODO is just measuring the number of revolutions of the tire & converting it to distance traveled. It all boils down to the circumference of the tire which is directly proportional to the diameter (c=d*pi).

So ... the easiest way to wrap your mind around it is that the % increase you make tire diameter, your speedo & odo will be off by the same % (going from a 30" tire to a 33" tire will throw your guages off by 10%).

As a matter of fact, if you were to calibrate your speedo against a GPS with new tires, then again when the tires are used up, you should see a difference (small but measurable).

[wekilled]

I recently downloaded the. Motometal Pdf catalog. Looking at page 13, the black MO959 rims come in a variety of configurations. This includes rim size, various offsets, and the obvious lug numbers. Looks like the lugs are a no brainer, and i wanted to get 18 inch rims. I had three questions for a nonlifted VX: ( to see if these will these even fit)

Best width (9 or 10")
Best offset that wont stick out ridiculously far
They didnt list the centers either -i think ours is 100mm

[Maddawg]

Procomp wheels PXA-8101, 8x16, 108mm center, 0 offset, 4.5" backspacing
Toyo Open Country tires, M/T 285/75R16/10 ply, 33.0" dia x 11.5"
3" lift: JRS Springs, cranked torsion bars

[LittleBeast]

So, my new tires are at exactly 35", but remember I have 4.78 gears in. So now that I am averaging just over 200miles per tank, what is the actual miles? What do I multiply by?

[tom4bren]

I'm talkin out my arse here because I really don't know, but:

4.78 is the number of revolutions of the drive shaft for each revolution of the tire. So if you swapped from 4.11s to 4.78s, then your ODO & Speedo should be off by 16%.

But ...

You also increased your tire diameter (from 29" to 35") for a difference of 20% but in the opposite direction. Your net SHOULD be a 4% change in your ODO & Speedo.

The best way to check is just to compare your mph to the reading on a GPS or to run a known distance and compare the ODO reading (the longer the distance, the more accurate the comparison will be - I'd do a minimum of 10 miles but more is better).

Y'all can correct me on what I've FUBAR'd here.

[Ldub]

So, my new tires are at exactly 35", but remember I have 4.78 gears in. So now that I am averaging just over 200miles per tank, what is the actual miles? What do I multiply by?

I'm talkin out my arse here because I really don't know, but:

4.78 is the number of revolutions of the drive shaft for each revolution of the tire. So if you swapped from 4.11s to 4.78s, then your ODO & Speedo should be off by 16%.

But ...

You also increased your tire diameter (from 29" to 35") for a difference of 20% but in the opposite direction. Your net SHOULD be a 4% change in your ODO & Speedo.

The best way to check is just to compare your mph to the reading on a GPS or to run a known distance and compare the ODO reading (the longer the distance, the more accurate the comparison will be - I'd do a minimum of 10 miles but more is better).

Y'all can correct me on what I've FUBAR'd here.

I done did all the homework for ya months ago Ryan...

Don't you remember......

Click here...4:77's

[tom4bren]

DUDE!!!!

Will you ever tire of showin me up???

[Ldub]

DUDE!!!!

Will you ever tire of showin me up???

hu-hu-hu...hu-hu-hu-hu-hu-hu...he said tire...hu,hu,hu,hu,hu,hu...

[pbkid]

DUDE!!!!

Will you ever tire of showin me up???

Whats the fun in that?

[tom4bren]

Bazinga!!!

Holy Crap on a Cracker - The Peanut Butter Kid musta ate his Wheaties this morning ... trading jabs wit da big boyz now!!! Impressive.

[tom4bren]

hu-hu-hu...hu-hu-hu-hu-hu-hu...he said tire...hu,hu,hu,hu,hu,hu...

Glad my feeble attempts at humor are appreciated.

[Ldub]

Glad my feeble attempts at humor are appreciated.

Always...

[VXorado]

Will you ever tire of showin me up???

Nice pun.

[tom4bren]

Nice pun.

It was pretty much a rim-shot of a joke ... but the more un-sprung of Y'all got it. Maybe with more time to rotate in the grey matter, more of the lugs will get it too. No pressure though.

[Maddawg]

It was pretty much a rim-shot of a joke ... but the more un-sprung of Y'all got it. Maybe with more time to rotate in the grey matter, more of the lugs will get it too. No pressure though.

Oooooooooh, thats bad, P.U.