Car Audio + Rims = Bad Idea?

[donpisto 5,000+ posts]

speedometer should be fine if you wheel/tire combo are that same height as stock
you will notice a difference in ride due to lower profile tires

added weight of the wheel WILLmake you use more gas

overall 20's wont hurt much

Corrected for accuracy...it may not hurt much, but it all depends on the wheel itself and the weight of the original wheels or hubs.

 

[bones22 5,000+ posts]

I mean Im not doing a wall system or nothing but Im thinking Ill have about 500 pounds of weight in the trunk or less

with 500lbs you will squat a good bit. the only time you would really have to worry would be ruff roads and stuffing the tire into the wheel well on them

 

[Loud3 10+ year member]

It varies depending on the amount of weight you add to the vehicle itself, and the amount of weight you add in the unsprung mass department.

You can expect longer distances to come to a complete stop from forward motion, slower acceleration and a dip in your gas milage.

There are other 'unsung' issues as well. Some vehicles (usually smaller sport compacts) will have issues with their transmissions due to the extra stress, and you will probably see some issues with camber/toe. Camber and Toe can be corrected, luckily.

CV axles will have a shorter lifespan as well.

...BUT

This depends greatly on the starting wheel weights/overall sizes, and actual vehicle.

If you can get past those issues (I have, several times...), then go for it.

It's all down to personal taste, budget and willingness.

I went from factory 15" wheels to MUCH wider 20" wheels with 225/35 tires in the front and 245/35 tires in the rear. I added a considerable amount of weight (+20lbs per corner), but really only noticed the excess on quick stops at highway speeds. I went from 27-28mpg to 24-25mpg.

 

[TeZ 10+ year member]

lol those make me puke. especialy when i had seen a set on a 87 grand national.
i will never buy wheels over 17" for a car. if your rollin on 20s that fine, but dont ask me to be nice and say it makes the car look good. they overwhelm the look of the car and distract other motorists LOL

if your worried about system weight, just settle for 18's. how much does it weigh?

DONK that shiiit hahaha JK

 

[donpisto 5,000+ posts]

its all depends on your ride and weight from system to be real and yes the flashier your ride the more attention from unwanted folks it will bring you can match up 20 inch rim/tires to rotate the same as stock and have the same mount of revilations as stock you will need to consult your local tires shop or call up a discount tire they can walk you threw the process and explain it better than i can

Very true. Though it's hard to get the exact same, so you should focus to get a combo that will be within 3%, I try to do within 1%. My stocks were 215/55/17 and my 20's when I had them on were 245/35/20.

Here is a good calculator. Even changing the width of the tire will make a difference, it's not just the rim size or the profile of the tire. http://www.1010tires.com/tiresizecalculator.asp

 

[bones22 5,000+ posts]

Corrected for accuracy...it may not hurt much, but it all depends on the wheel itself and the weight of the original wheels or hubs.

thats what i was getting at but wasnt that clear.

a lot of companies are using lighter materials now but you are right there are a lot of things to consider

 

[Louisiana_CRX 5,000+ posts]

more that a bit... anything over 18 on a car looks like shit IMHO. the cars soposed to be the thing looked at, not the **** wheels...

These are 20's and don't look like shit //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif and the Car Audio works fine.....//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[donpisto 5,000+ posts]

I mean Im not doing a wall system or nothing but Im thinking Ill have about 500 pounds of weight in the trunk or less

That's alot of weight. Your cars rear end will sag for sure. Get coiliovers, not springs, because springs settle. Also here is something else to think about. When you get 20's, your camber is going to change and so will the toe. I went back to stock wheels because my camber was off, it was -2.0 degrees in the rear and -2.5 in the front. It should be no more than -1.0 so that you don't deal with too much inner tire wear.

If you have a bad camber, you will have to invest in a camber kit which can cost anywhere from 200 - 550 bucks for the pair without install and new alignment. And in order to know whether you need a camber kit for either the front or rear, you need alignment. Wish I knew all this stuff before I purchased 20's, I regret getting mine, in fact, I'm selling them.

 

[keiffith 10+ year member]

Wow, people REALLY don't know what they're talking about. It HIGHLY depends on the vehicle. Let me post this once more...please, tell me, does this look shit?And I have plenty room to spare, that's with a 2.5" drop. Could fit 22's with rubber bands if I really wanted, but that IMO wouldn't look all that great. I've seen PLENTY of G35's, 350z's, some Corvettes.... all with 20's, and they look very nice.

i dont like it. wheels consume the car. and theres NO tire. indy cars and drag cars dont use 20's so why should i?

that looks good.

 

[wgsj_fortvalley 10+ year member]

your speedometer and odometer will loose a bit of accuracy.

this is true

 

[Dak446 10+ year member]

Wow, people REALLY don't know what they're talking about. It HIGHLY depends on the vehicle. Let me post this once more...please, tell me, does this look shit?

And I have plenty room to spare, that's with a 2.5" drop. Could fit 22's with rubber bands if I really wanted, but that IMO wouldn't look all that great. I've seen PLENTY of G35's, 350z's, some Corvettes.... all with 20's, and they look very nice.

good example. not flashy, just smooth and imo looks **** good.

edit: da'mn is blocked now? what the ****

 

[Loud3 10+ year member]

Wheels consuming car...

Car consuming wheels...

 

[donpisto 5,000+ posts]

i dont like it. wheels consume the car. and theres NO tire. indy cars and drag cars dont use 20's so why should i?

that looks good.

There's no tire because it's tucked //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif theres about 2 - 3" of tire around it, it's just difficult to see, here's a better picture.

These are the tires the original owner had, now THIS is no tire.

As for that pic, car looks UGLY with that front lip. In response to what you said, drag cars and indy cars are TRACK cars. I HIGHLY doubt the owner is putting a system in a track car, or anybody here for that matter, just makes no sense at all. It's a daily driver, thus no need stick with 17's or under. Plus that car in the pic needs about a 1" drop to be sitting right....IIRC, drag and indy cars are sitting on lower suspension as well.

 

[01 S 10 10+ year member]

So dont have any problems with your tires and your systems weight

no, i havent noticed anything different. you mean as far as tire wear? they seem to be holding up pretty well. all of my system's weight is in the middle of the vehicle (extended cab S10) so it doesnt squat any particular part of the vehicle. the wall was about 2 1/2 sheets of MDF if i remember right, plus 80-90 lbs in subs, 50lbs in amps, 80lbs in batts... idk how much that equals because im not sure what 1 sheet of mdf is??? 60lbs?

 

[Loud3 10+ year member]

i dont like it. wheels consume the car. and theres NO tire. indy cars and drag cars dont use 20's so why should i?
that looks good.

I don't know, but the worlds fastest sedan, from Brabus...

rolls on some mighty big wheels and still touches 217MPH.