For those of you have both the 18 and 17 inch OEM rims
12-31-10, 03:52 PM
#16
Pole Position
The pushbike analogy would ring true if it was relevant. Rolling diameter/overall diameter in this case does not change from one tyre size to the other,so there's no point in referring to it. it's not a factor here.
For those worried about ride comfort,there's always the option of a 225/50/R18 for the five spoke wheels. You don't gain any extra tyre width,but will get a nicer looking wheel onto the car and slightly lower profile tyre that will handle a very small fraction better.
Justin...
For those worried about ride comfort,there's always the option of a 225/50/R18 for the five spoke wheels. You don't gain any extra tyre width,but will get a nicer looking wheel onto the car and slightly lower profile tyre that will handle a very small fraction better.
Justin...
01-03-11, 03:31 PM
#17
I haven't seen it mentioned that heavier wheel/tire combination will also hammer the suspension components more than a lighter wheel/tire will. I can't put a number on it but the unsprung, heavier, weight will be an issue. How much? Don't know. Something to think about especially if you have a UL air ride car.
My car (UL) originally came with 17's but I switched to OEM 430 16's because I wanted ride comfort. I still switch back and forth depending on my mood and can't really tell a difference. But I don't drive the car like I stole it - I'm an old man, afterall! I'll probably just sell the 16's and stick with the 17's since they look way better.
I will tell you that I swapped out 17" rim and tire(All Terrain) combo with a 16" rim/tire (Highway tires) combo on my Dodge pickup and weighed both sets. 17lbs PER CORNER difference! Definitely can feel it in braking and acceleration.
My car (UL) originally came with 17's but I switched to OEM 430 16's because I wanted ride comfort. I still switch back and forth depending on my mood and can't really tell a difference. But I don't drive the car like I stole it - I'm an old man, afterall! I'll probably just sell the 16's and stick with the 17's since they look way better.
I will tell you that I swapped out 17" rim and tire(All Terrain) combo with a 16" rim/tire (Highway tires) combo on my Dodge pickup and weighed both sets. 17lbs PER CORNER difference! Definitely can feel it in braking and acceleration.
01-07-11, 10:45 PM
#19
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Braking power will be reduced with larger wheels and tires - assuming larger wheels and tires weigh more and have a larger moment of inertia (more centrifugal force) than smaller lighter wheels.
Should not be a huge difference on only 1 inch bigger wheels but its there. The big problems show up when people put huge oversized size wheels and tires on their pickup trucks and don't have the smarts to upgrade the brakes. The result is severely underpowered brakes and that makes them a danger to themselves and everyone around them.
The need for huge trucks and giant wheels for city driving puzzles me - isn't it easier and cheaper to just get a sign that says "I have a tiny wiener" ?
Should not be a huge difference on only 1 inch bigger wheels but its there. The big problems show up when people put huge oversized size wheels and tires on their pickup trucks and don't have the smarts to upgrade the brakes. The result is severely underpowered brakes and that makes them a danger to themselves and everyone around them.
The need for huge trucks and giant wheels for city driving puzzles me - isn't it easier and cheaper to just get a sign that says "I have a tiny wiener" ?
OP: With the power of a ls430 I doubt you will feel any difference in acceleration, you may feel a slight loss in braking depending on what wheels you go with because of their weight. I would not worry about it. I would go with a 19" wheel if you are upgrading it will look much better than a 18" on such large wheel wells.
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