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View Full Version : 20 wheels?? can it be done?


Dave B.
12-24-2004, 01:54 AM
I wonder if its possible to put 20X9.5's front and 20X10.5's rear on an 2003 cobra? anyone done it?

Will they fit? are there tires that would fit? Im am seriously thinking of doing it if I can make it work. :bounce: :bounce: :bounce: :bounce:

Firme
12-24-2004, 02:18 AM
IMHO, anything above an 18 looks tacky as hell on a Cobra (the 05's are a different story)

....

But.. thats my opinion, and its your car, so do whatever you feel best.

I have seen 20's before, but I am not sure how wide they were.

sssvtcobra
12-24-2004, 03:03 AM
I agree with Firme, but it is your car so do what you want. I have seen 20's before on an '03 and I think they were 8" wide though. In my opinion they looked way to big for the car. It looked like an SUV. I have also seen 19's on a GT before, those were right on the line of looking to big. I have the 18" cobra R's on mine, and I think 18's are the perfect size.

Just my 0.02.

ausie
12-24-2004, 09:00 AM
I have 18's on all four corners and I still have that illusion that the front wheels look bigger than the one's in the rear. It is not quite as bad as it was on the 01 (probably due to the lower stance on the 04). Monster truck wheels may look okay on some vehicles but for some reason I think the larger wheels were intended for SUV's more so than small sedans or coupes. I think the Chrysler Cross fire has 20's on the rear. Those wheels look way too big for that small car, However, it does have some appeal to it. It may be a factor of how the fender is shaped. It may even look great, but I have not seen any Mustangs with anything larger than an 18 inch.

jack
12-24-2004, 10:06 AM
I agree with them. My sister has a 03 Roush and it has 18's and looks just right. Anything any bigger IMO would look to big. Plus the bigger you go the tougher the ride.

93KingCobra
12-24-2004, 12:41 PM
This guy has 19" in the front and 20" in the rear..
http://www.modularfords.com/forums/showthread.php?t=19220&highlight=CCW

jack
12-24-2004, 12:56 PM
I have to change my mind now after looking at the yellow cobra. That thing looks very nice. Just wondering how it rides on those big tires? With the lowering and rims, thats a sweet look!!!

crunchit
12-24-2004, 01:35 PM
Interesting that this post is here today... Just last night I came across a guy with 20's on a 03 GT. He told me that he had already broken two rims (factory replaced). And is getting ready to go down to 18". Claimed that he didn't like the ride at all. Not enough rubber.

There is a difference between the Terminator IRS and the GT suspension, however.

Guess it depends on what your looking for. I thought that the 20's made the car look a bit bug-eyed:eek: . Didn't quite look right to me. Just my .02
Steve

casey99COBRA
12-24-2004, 03:47 PM
nothing more than 18's... the dubz are for the suv's.

http://www.ragesystems.net/images/funny/pimped_out_ride.jpg

Red03
12-24-2004, 05:44 PM
:lol: :lol: :lol: :lol: :lol: :lol:

Somebody has to much time on their hands

Funny as hell but still to much time

Dave B.
12-24-2004, 08:04 PM
GENTLMEN!!!!!,,,

Thank you for your imput,,,,,,,you talked me out of it, although I think 19s may be ok, I dont like the ride getting any worse,

casey99COBRA
12-24-2004, 09:36 PM
:lol: :lol: :lol: :lol: :lol: :lol:

Somebody has to much time on their hands

Funny as hell but still to much time
me and some friends did pretty much the same thing to our friends 98 saturn... we got a kick out of it, and many on the road lol!

NewFoundPower
12-24-2004, 10:12 PM
If it doesn't make it go faster, shift quicker, bite harder, handle better, or sound meaner, it ain't going on my car.:D

Besides, how much do those 20's weigh? As much as the car? LOL!!!

Merry Christmas all!!!!!

-D-


We'll leave all the BLING BLING for Greg :rotf:.

ausie
12-25-2004, 10:18 AM
I would have to admit, that yellow stang looks sweet! I also like that wagon too. Hey Casey, is that your daily driver? Besides that, I noticed a huge difference when going from stock 17 to aftermarket 18's. Especially with wider width in the rear, tires spin too easily when launching which is probably due to the low profile of the tire which requires a higher air pressure. You loose a bit of contact area with lower profile tires in the rear, on the flip side, you also get increased road feel up front due to reduction in lateral roll of the side wall. I was even thinking that the ride was a bit harsh with the 18's. That is to be expected.

Big Daddy
12-25-2004, 04:04 PM
If it doesn't make it go faster, shift quicker, bite harder, handle better, or sound meaner, it ain't going on my car.:D

Besides, how much do those 20's weigh? As much as the car? LOL!!!

Merry Christmas all!!!!!

-D-


We'll leave all the BLING BLING for Greg :rotf:.

Yep my car is nothing but BLING BLING!! Merry Christmas! :rolleyes: :rolleyes: :rolleyes:

SlowSVT
12-26-2004, 12:42 PM
I read somewhere that SVT tested 18" rims on the 03/04 Cobra but found that the car handeled better with 17's. The Cobra R ran 18" though. Can anyone shed some light on this?

RheacerDave
12-26-2004, 01:35 PM
You only need wheels big enough to clear calipers.

No matter how light the wheel, any time you move just a few ounces away from hub center, you hurt stopping and going.
Tie a weight to a string about 15 inches long and swing it around.
Now make the string 20 inches long and swing it. Not as easy, huh?
It's all about levers.:thumbsup:

Mirage
12-27-2004, 09:37 AM
03KingCobra~ I've always said the the Cobra's should come stock with 18's as the 17's seem a bit small. 20's might be overkill, but I do have to admit that the yellow one shown here looks good.

ausie
12-27-2004, 12:58 PM
As long as the weight stays the same, and that the overal diameter does not change (with the tires mounted is about 25 inches). The 18 inch wheels with 275/35/18 r were 0.1 inch shorter than the stock 01 wheels with 245/45/17. Don't just consider the wheel itself but look at the entire package wheel and tire. Most of the weight will be in the tire than in the material of the wheel. I think your lever was a bit long (at 15 inches, that would be a 30 inch wheel) if you are dealing with the lever concept, use the radius of the wheel, not the diameter. A good analogy though, however if the wheel and tire combination has the same overall diameter or radius then what? Actually what you need to consider is total weight, and where most of it is located (it better be on the outer portion of the radius, rings have lower inertial mass as compared to solid disks). I do not believe that 20 inch wheels would make much of a difference as long as the overall diameter does not become larger with the tires mounted on them. Believe it or not, since larger wheels require lower profile tires and the overall weight could be less than a 17 inch wheel with a tire that provides the same diameter. However, if you go wider you get more inertial mass which will increase the force necessary to spin it.

Either way you go, there are advantages for larger wheels and or smaller wheels as well as disadvanteges. For street use (and depending on condition of the roads) it probably will not make a difference how big the wheel is unless you live in an area with poor road surfaces like PA. Lower profile tires have less sidewall roll than larger profile tires which increases cornering stability. However, under hard acceleration, and since the sidewall is extremely stiff, they tend to break loose easily as compared to the larger profile tire on a smaller wheel diameter since there is more sidewall flex which will increase the contact patch area. (they don't use those monster sized tires in drag racing just for looks).

For track use, and depending on what type of track it is (drag or road course) it is obvious that the same tires or wheels are not used. But those same tires used for strickly track purposes, would not be good for the street or everyday driving as well as having a very short tread life.

In my opinion, if it looks good and if you like what you see, great! :thumbsup:

I still think that wagon is killer. :D Where can I get one just like it?

ausie
01-01-2005, 11:55 AM
One thing to consider when going larger in wheel diameter is inner offset in the rear, 20" may possibly strike the IRS mounting bolt. It may be difficult finding 20" wheels with the correct offset. Just an after thought since I noticed only 1/2 inch to 1 inch clearance with the 18x10 and 285/35 mounted on them.

edswhite99
03-26-2005, 12:51 PM
This guy has 19" in the front and 20" in the rear..
http://www.modularfords.com/forums/showthread.php?t=19220&highlight=CCW
****, that thing looks sweet:thumbsup:

edswhite99
03-26-2005, 01:04 PM
Anyone know what wheels the yellow stang has on it?

sssvtcobra
03-26-2005, 06:20 PM
Those would be ccw's. They are very expensive!!!!! Atleast for wheels anyways. They are nice looking wheels, light, one or three piece, highly polished, but still not worth the $$$ they are asking for them. I'll just stick with my '00R rims. The website is ccwheel.com. Momo wheels have a set of rims that look almost identical, I think they are called momo sports. But I'm not sure if you can get them deep dished, or in our size for that matter.

Jeff

Davesnake
03-27-2005, 10:13 AM
Ghetto