acceleration vs wheel size and weight

[silver_echo]

i run a 205/40r17 and specifically chose that tire size to keep the speedometer correct... well as correct as it can be with a different size... ran the math and it came out to be 0.67 MPH faster at 30 MPH on the speedo

[Loren]

Originally Posted by silver_echo

i run a 205/40r17 and specifically chose that tire size to keep the speedometer correct... well as correct as it can be with a different size... ran the math and it came out to be 0.67 MPH faster at 30 MPH on the speedo

Nice. But that's not at all what we're talking about.

[silver_echo]

Originally Posted by Loren

Nice. But that's not at all what we're talking about.

if tire diameter is off, it WILL mess up the gas mileage more than the larger wheel size alone. it will also weigh more to have the 45 series vs. the 40 series.
i will admit that i did take a hit on gas mileage switching to 17's, but in the long run, you need to compare the savings in fuel to what style you like. if you really prefer the look and slightly stiffer handling characteristics of the larger wheels and wider tires, then the difference then becomes an academic argument.

my advice, do exactly what you like with your car. don't even worry about what others think, because opinions are like a**h*l*s, everybody has one.

[ddongbap]

Originally Posted by silver_echo

if tire diameter is off, it WILL mess up the gas mileage more than the larger wheel size alone. it will also weigh more to have the 45 series vs. the 40 series.
i will admit that i did take a hit on gas mileage switching to 17's, but in the long run, you need to compare the savings in fuel to what style you like. if you really prefer the look and slightly stiffer handling characteristics of the larger wheels and wider tires, then the difference then becomes an academic argument.

my advice, do exactly what you like with your car. don't even worry about what others think, because opinions are like a**h*l*s, everybody has one.

What are you talking about? Numbers don't lie.

[silver_echo]

Originally Posted by ddongbap

What are you talking about? Numbers don't lie.

was not saying that numbers were lying... what i was saying was that aucorium is well within his rights to make his own choices... and he had specifically said in his first post that he likes the look of the larger wheels.

[ddongbap]

Originally Posted by silver_echo

was not saying that numbers were lying... what i was saying was that aucorium is well within his rights to make his own choices... and he had specifically said in his first post that he likes the look of the larger wheels.

He was asking a question. He wasn't saying one is factually better than the other.

He came here asking questions for answers. We're giving it to him. Good thing this question is easily answered cause numbers are numbers.

But, I kind of think you don't know what you're talking about.