So, you're thinking about buying wheels...

You're comparing a 7" wide wheel to a 3.5" wheel.


You made it seem like you had JUST switched the wheels.

This would mean your tires were changed as well.
makes no diff as we're comparing the unsprung weight. And it's RWD, so the fronts make no diff as well. Back had the same size/brand slicks. Trust me I was HOPING for more as the car was running consistent 10.0's on nuts and I wanted that 9 second time slip off the gun //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Again I'll say the biggest loss of performance will come from killing your final drive ratio when going to taller tires.

And yes the inertia from a heavier tire/rim combo will be harder to stop.

 
i think your theory is flawed by the simple fact that you used 20's as your comparison now if you was to say 24's then it may be come a issue but 20's compared to say stock 16's or 17's isnt that drastic that you would lose anything IMO you would gain do to 99% of the time if you make that switch you are going with a low profile tire which is more performance than say your 225/45/16
i say change your arguement to 24" and you make more sence
How many cars do you know can actually fit a 24" rim? And as mentioned in the post, changing the tire size and going with a lower profile is NOT the only factor to consider. A big issue is unsprung weight.

I went from 215/55/17 to 245/35/20 and back to the first one and noticed a difference. Acceleration was improved when going back to stock.

Again, it is not just about matching tire sizes, unless you are trying to maintain similar speeds. There are other factors to consider.

 
no bickering going on, just sharing ideas/experiences....
X2.

I see exactly where you are coming from.

I was addressing this more towards the average user than is just going to put their larger/heavier wheels on a daily driver car that isn't performance built.

Perhaps I shall have to look more into the effect on something that sees more track use.

 
Did you read ANY of the info?
Because it doesn't rely on the wheel size. It relies on adding mass to the rotation, not the overall dimensions of the wheels.
yes i have as a matter of fact i have read it several times before and im not saying it soley because of size. I'm saying a 20" wheel doesnt add much more mass than a 17 or a 16. hell i put solid rims on my car and i bet the difference per corner was wel under 5lbs thats why i said i would change it to a bigger rim size because then you get the mass that you need to see a real difference.

matter of fact i bet **** near any asanti or any high end 3 piece 20" wheel weighs less than a stock 16" steelie

So while i agree with what your saying about adding mass i dont agree that a 20" is enough to add that mass

 
How many cars do you know can actually fit a 24" rim? And as mentioned in the post, changing the tire size and going with a lower profile is NOT the only factor to consider. A big issue is unsprung weight.
I went from 215/55/17 to 245/35/20 and back to the first one and noticed a difference. Acceleration was improved when going back to stock.

Again, it is not just about matching tire sizes, unless you are trying to maintain similar speeds. There are other factors to consider.
i can get a list together if you would like of vehicles that can fit 24's with no problem //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

I'm not trying to fight or anything but giving another opinoin on this

 
yes i have as a matter of fact i have read it several times before and im not saying it soley because of size. I'm saying a 20" wheel doesnt add much more mass than a 17 or a 16. hell i put solid rims on my car and i bet the difference per corner was wel under 5lbs thats why i said i would change it to a bigger rim size because then you get the mass that you need to see a real difference.
matter of fact i bet **** near any asanti or any high end 3 piece 20" wheel weighs less than a stock 16" steelie

So while i agree with what your saying about adding mass i dont agree that a 20" is enough to add that mass


You should go check wheel weights, then.

A 20" wheel that is cast and chrome plated adds a CONSIDERABLE amount of mass.

One example.

My monoblocks on the Maxima were 20x8.5's that weighed 26lbs and 20x9.5's that weighed 28lbs.

Mounted on 225/35/20 Nexen N3000s and 245/35/20 Nexen N3000s, I was looking at around 61lbs after approriate tire pressure.

My factories were 31lbs combined.

That's an excess of 30lbs PER CORNER. All but doubling the weights.

I'm sorry, but if that's not adding a considerable enough mass for you... then you shouldn't be in the thread.

Of course, it is ALWAYS far excessive with larger sizes, because mass is relative to size in steel.

Your talking about asanti's? I've mounted a few sets. They are not as light as you may think. No one wants to spend an excess of $1000 per wheel and then have a lip bend, or the hoop collapse. Also, how many people do you see rolling Asanti's? Usually when you see them, they are NOT on daily driven cars.

 
well i guess i will have to double check but my factory rim with tire 235/65/17 was not much lighter than my 255/35/20 inch rims i put on my truck and my rims are solid

 
i can get a list together if you would like of vehicles that can fit 24's with no problem //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif
I'm not trying to fight or anything but giving another opinoin on this
I know there are some vehicles that can, but the majority of them will not fit 24's without some modification.

After reading your other post I realized that it depends on the individual's stock wheels. That will make a huge difference. Some wheels on vehicles are much lighter (or heavier) than others. But I think the informative posts were speaking in general for the majority of vehicles.

 
well i guess i will have to double check but my factory rim with tire 235/65/17 was not much lighter than my 255/35/20 inch rims i put on my truck and my rims are solid
I thought that too when I put my 20's on. When I put the 17's back on, wow, I realized how much of a difference it was. I coulda sworn they didn't seem as heavy before the swap, lol.

 
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