18 inch rims - Suspension and Brake Forum

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18 inch rims
Monday, August 21, 2006 6:53 PM
i noticed that after gettin my new rims everytime i go over a big bump the tire and suspension hit. It makes a big noise. Now i do want to lower my car prolly after the winter season. Will be lowering the car make the tires hit more? or will it be pretty much the same

The rims are 18 inches and the have a 42mm offset
id like to lower the car only about 1.5" nothin really big.

Re: 18 inch rims
Monday, August 21, 2006 7:13 PM
what?


if you have the proper sized wheels and tires they will be the same size overall as stock wheels with tires. The actual diamater will be the same so there is no reason a tire shoudl be be hitting your suspension. On top of that there really sin't any moving parts thats would make a tire hit suspension over bumps. Chances are your not use to having lower profile tires. With 14's lets say you have 4 inches of sidewall..... you make make the rim an 18 which is 4 inches bigger you will 2 inches of sidewall now.... less sidewall means less to absorb bumps. Liek the sport compacts running 20" with 30 series profile, looks like a rubber band around a wheel, you will bend the wheels in no time. I'm thinking maybe your strut mounts are going and your hearing the clunk form that over bumbs?






Re: 18 inch rims
Monday, August 21, 2006 7:17 PM
one more thing.... this is how my car sits on 18's and there is nothign in the suspension that touches the tire.... just the fenders






Re: 18 inch rims
Monday, August 21, 2006 7:18 PM
thats sick, what kinda drop do you have on yours.
Re: 18 inch rims
Monday, August 21, 2006 7:29 PM
Koni Yellows and Eibach Ground control coilovers

The front is about 3.5 inches lower then stock and the rear about 4 inche slower then stock.... you can't actually go any lower and have it driveable hahaha with a stnace liek that it is by no means meant o driven around regularly and dependable. Its lower enough where the warranty on the shocks are void because it is considered abuse. The silver car is my show car/weekend car (well it will be when its done) do not expect to get anywere near that low on a dialy driver.

My point is if I can go that low and tires don't hit the suspension there is no rearson your should be on stock suspension. If infact the suspension it hitting the tire itself you have a preaty big problem, eventually your tire WILL blow out and a blow out is never preaty.



Re: 18 inch rims
Monday, August 21, 2006 7:32 PM
yea def too low for me.

but yea thanks...your prolly right then im not used to the bigger rim. i havent had them for too long anyway so.
Re: 18 inch rims
Monday, August 21, 2006 7:37 PM
next time you get some free time pull the wheels and look for any slit marks on the inner edge of the tire, also shiney spots on the suspension parts (the struts and springs mainly) I highly dought its rubbing but better safe then sorry



Re: 18 inch rims
Tuesday, August 22, 2006 8:25 AM
unless you got a really wide rim or the offset is way off, it shouldnt hit your suspension. i think your strut mounts are bad



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