MaxSpeedSE

iTrader: (3)

Hey,

I have 17 inch Konig Monsoons that are 21 pounds i believe


If I buy light weight 18s, that are about 20 pounds..would that mean acceleration wise my car would be about the same..or would I be slower?

SteVTEC

The tires will probably be heavier due to the stiffer sidewalls that you need, and you'll still have more weight at the outside which will give your wheels a higher moment of inertia. May not be a big difference, but it's probably not going to help your overall performance.

5spd92SE

You will also have a greater contact patch which will create more friction, thus slowing you down slightly.

Better cornering (tire dependent)? Yes.

Slower straight line performance? Slightly.

MaxSpeedSE

iTrader: (3)

Both the rims are 17x7.5 and 18x7.5

5spd92SE

What I should have said earlier:

If the overall diameter with the 18's and with new tires increases, you will have more tire contacting the pavement creating a larger contact patch than with the 17's, and like SteVTEC said, the moment of intertia will be greater.

I made the assumption that the overall diameter always increases with an increase in wheel size, which isnt always the case.

What tires are you going with? They will play a role in your performance #'s also.

MaxSpeedSE

iTrader: (3)

Im really not sure....

What are my choices, and what would be the diffrence?

Sprint

iTrader: (10)

damn that sig is hot

5spd92SE

You are going to have to be more specific on that one...

What climate do you live in? What will the car be used for?
How much (this is key) do you want to spend?

Etc, etc.

Narrow it down a bit, and then we can help you further.

Frank Fontaine

You have a full inch less sidewall and a full inch more rim. Rim is more dense than tire, in all cases if I'm not mistaken. Why the 18" rim would be lighter is an enigma, short of them costing a fortune.

I have 235/40-WR18's on 18x8's and I can honestly say they offer no performance benefits. But on a Maxima, that's not the reason to get them, it's looks.

slimer

iTrader: (13)

yes it is

MaxSpeedSE

iTrader: (3)

Im in Florida... and there going to be used for everyday driving, and your every weekend drag race..

price dosent matter becuase i get tires for free...and i want 18s becuase i plan to get boost in the future

slimer

iTrader: (13)

go with 18's, IMHO they look better. I dont think that ive ever heard of anyone getting 18's and wanted to go down to 17's, but i hear a lot of people w/ 17's wanting to go up.

NYCe MaXiMa

iTrader: (9)

more mass further away from the middle of the wheel.. i guess they may slow you down tiny bit compared to those 17s..

but the difference won't be big..


the big difference in looks outweighs the minor difference in weight/performance... by a lot!

17s are even stock on Huyindais now..


I had 17 lb.. 17's and sold them, now i'm going to get some 18s, which are likely a good 7+ lbs heavier, each. I don't mind that much because they look so much better and I don't race, nor do I try to squeeze every bit of performance out of the car.

MaxSpeedSE

iTrader: (3)

Thanks guys, very good points

Conrad283

iTrader: (2)

you're just talking about her a$$ whats up

95emeraldgxe

i thout he was talking about the car you