Question on tires...debate.
#1
Lexus Champion
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A boy of mine (the dude witht he 240sx) and I just had a debate on this regarding tires.
If he puts a 30 series tire on 18's he claims his speedometer will be off ever so slightly (few mph) I said it would be off by more than just a few.
Who can answer this question for me?
Thanks
If he puts a 30 series tire on 18's he claims his speedometer will be off ever so slightly (few mph) I said it would be off by more than just a few.
Who can answer this question for me?
Thanks
#2
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I think you need the overall height of his stock wheels/tires to figure out this question. Im sure wheel gurus can answer this one quickly but the need the stock rim size and stock tire size.
#5
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Here it is
Here was his old stock wheel size
205/55/16
Now he has 18's
dunno that size yet.
But he trhought a 30 rated tire on an 18 wheel wont make much difference in odometer change.
Here was his old stock wheel size
205/55/16
Now he has 18's
dunno that size yet.
But he trhought a 30 rated tire on an 18 wheel wont make much difference in odometer change.
#6
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Hehehe....285...maybe on a widebody 240SX...
Compared to the stock 205/55-16...
If he does a 225/30-18, he'll have a 6.3% speedo error (60MPH on the speed will actually be 56.2)
A 245/30-19 will give him a 4.4% speedo error (60/57.4)
Tell your friend to get his head out of his ***...what is the reason for doing 30 series when you don't need to? Maybe on 19's...but on 18's?
Compared to the stock 205/55-16...
If he does a 225/30-18, he'll have a 6.3% speedo error (60MPH on the speed will actually be 56.2)
A 245/30-19 will give him a 4.4% speedo error (60/57.4)
Tell your friend to get his head out of his ***...what is the reason for doing 30 series when you don't need to? Maybe on 19's...but on 18's?
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