Tire & Rim Size Questions

Yes, yes, I read the older posts. :biggrin: My current tires are about half way through their tread and so I just want to get my ducks in a row. Instead of investing in a new set of tires for rims I don't like, when the time comes, I'm going to see if I can get a deal on some new rims. I'm thinking about going with 18's and from what I've read that seems pretty safe (what are the stock rims? 17"?) The bolt pattern is 115 x 5, right? How wide of a tire can I go with before I start hitting the wheel well? Also, with 18" rims, what size tire would I need in order to maintain the current overall tire height so I don't throw the speedometer off?

Thanks!

i had a 00 gtp and i had 18's and the tires i went with was a 245/45/18

i had a 00 gtp and i had 18's and the tires i went with was a 245/45/18

Sweet. Thanks! Any issues at all? How did you like them?

i liked them. never had any issues with rubbing. the tires are like 8" wide

Use one of these

http://www.discounttire.com/dtcs/infoTireMath.dos

I recommend 18inch tires. 19 inch look great but you'll pay a fortune in tires, since they are considered a weird size. 18's look awesome though. I was able to put the 18inch rims and tires from a 2007 Pontiac G6 GTP. I needed wheel adapters for the mod but they look great. I had to modify the wheel well slightly to prevent rubbing of the front tires (225/50/R18). I would post pictures but I don't know how:confused:.

OMG, please post pictures!

go to www.imageshack.us

upload your photo's there, and then take the "direct link to image" link and post it back here.

I think the 5 spoke chrome 18's off G6's would look kiack @ss on our gp's. Not sure if that is what you have.....

How did the adapters work? Were they expensive, and Are they safe?

I've got 225/60/R16's right now and if I went to 245/45/R18's wouldn't that mean that my wheels would be 20 mm's bigger (I can't remember how tire sizes work)? Would that screw my MPH's up? Anyone want my stock GP rims once I get new ones? :biggrin:

I recommend 18inch tires. 19 inch look great but you'll pay a fortune in tires, since they are considered a weird size. 18's look awesome though. I was able to put the 18inch rims and tires from a 2007 Pontiac G6 GTP. I needed wheel adapters for the mod but they look great. I had to modify the wheel well slightly to prevent rubbing of the front tires (225/50/R18). I would post pictures but I don't know how:confused:.

If you had rubbing issues with 225's, how in the world can anyone run 245's and not have the same problem??

Go to that link I posted and type in the info on your stock size and the aftermarket size. I think it even tells you how many MPH it will be off.

Go to that link I posted and type in the info on your stock size and the aftermarket size. I think it even tells you how many MPH it will be off.

Hmm. According to that, 245/45/18 will actually give me a more accurate MPH than the ones I have now!

weird! Problem is I think with different sized tires, MPH gets farther off the faster you go. (if that makes sence).

I think the 5 spoke chrome 18's off G6's would look kiack @ss on our gp's. Not sure if that is what you have.....

he is talking about the GTP wheels. they are a little different than the ones you are thinking of, which are the GT wheels. i always wondered what the GT rims would look like on a GP.

I wonder how these would look:

http://www.ksl.com/index.php?nid=218&ad=8957536&lpid=&cat=243

I really would like to get some '04+ GP chrome ones.

not a real fan of gunmetal. just my :2cents: of course.

not a real fan of gunmetal. just my :2cents: of course.

:angryfire WHAT?!?! How DARE you like something differently than I do!!! :lol:


BTW, how cold is it in WI and MN right now?

:angryfire WHAT?!?! How DARE you like something differently than I do!!! :lol:

come to think of it...you have a silver car, so it may not look too bad.

BTW, how cold is it in WI and MN right now?

well, I'm at work right now...but i just looked at weather channel and it says its currently 10F outside. got about 15 inches of snow outside right now too. 2 days ago...i could see grass in my front yard :eek:

Yeah, we're at 12 degrees right now. We got down to 2 last night. -3 is our all time record for 12/8 set back in '56. (Fun fact for the day).

I checked Craigslist for rims and they didn't have crap. I'm probably just going to have to sit and watch like a snake in the grass.

you could do that. another thing to check out...especially in the winter months is Tire Rack, sometimes they have some really good deals.

http://img43.imageshack.us/i/dscn0227ia.jpg/
http://img15.imageshack.us/i/dscn0226u.jpg/
http://img268.imageshack.us/i/dscn0225h.jpg/
http://img34.imageshack.us/i/dscn0224z.jpg/

Here are the pics. Hopefully I linked them correctly. The adapters were pricey ($380 delivered) but I had them professionally custom made by Fred Goeske. He is an old racing legend in his own time that owns wheeladapters.com. He's a pretty cool guy and has many years of experience racing and custom building. He has a 4.65 hydrogen peroxide funny car that was banned from all US tracks by the NHRA. I got them wheel/hub centric so they fit like a glove. They are made out of high grade billet aircraft aluminum and are 1 inch thick (thinnest safely possible). The rims were a steel at $200 on craigslist, and the new Yokohama Avid TRZ tires I put on are the quietest tire and best responsive tire I have ever had ($550 for set). I don't think I will ever buy American tires again. The Goodyear Eagle LS1's were loud and had poor tread life.

Drawbacks: You need to slightly modify the front wheel wells so you won't rub the tires while turning. Since you have wheel adapters on, places like Firestone and Discount tire legally cannot touch the car due to past lawsuits. I had to bring my original wheels on the car with with my new ones in the back seat for them to put new tires on. They can change the tire on the wheel, they simply cannot put the wheel on the car.

Benefits: The look is amazing. It gives the car the newer look of modern cars with larger wheels like the 300m/magnum/charger. The handling is amazing. And the launch......HOLY SH#& :evillol:. I use to spin out in the 2-4 shift but now the car launches and doesn't bounce around as much.

I will need to go in for an alignment to see if everything is ok (camber). But so far I'm loving the widestance look

I am in the south suburbs of Chicago and the temp is at 9 degrees right now.

http://img43.imageshack.us/i/dscn0227ia.jpg/
http://img15.imageshack.us/i/dscn0226u.jpg/
http://img268.imageshack.us/i/dscn0225h.jpg/
http://img34.imageshack.us/i/dscn0224z.jpg/

Here are the pics. Hopefully I linked them correctly. The adapters were pricey ($380 delivered) but I had them professionally custom made by Fred Goeske. He is an old racing legend in his own time that owns wheeladapters.com. He's a pretty cool guy and has many years of experience racing and custom building. He has a 4.65 hydrogen peroxide funny car that was banned from all US tracks by the NHRA. I got them wheel/hub centric so they fit like a glove. They are made out of high grade billet aircraft aluminum and are 1 inch thick (thinnest safely possible). The rims were a steel at $200 on craigslist, and the new Yokohama Avid TRZ tires I put on are the quietest tire and best responsive tire I have ever had ($550 for set). I don't think I will ever buy American tires again. The Goodyear Eagle LS1's were loud and had poor tread life.

Drawbacks: You need to slightly modify the front wheel wells so you won't rub the tires while turning. Since you have wheel adapters on, places like Firestone and Discount tire legally cannot touch the car due to past lawsuits. I had to bring my original wheels on the car with with my new ones in the back seat for them to put new tires on. They can change the tire on the wheel, they simply cannot put the wheel on the car.

Benefits: The look is amazing. It gives the car the newer look of modern cars with larger wheels like the 300m/magnum/charger. The handling is amazing. And the launch......HOLY SH#& :evillol:. I use to spin out in the 2-4 shift but now the car launches and doesn't bounce around as much.

I will need to go in for an alignment to see if everything is ok (camber). But so far I'm loving the widestance look

Yeah, they sure look sharp! Steal on the G6 rims. Wish I could find a deal like that around here. How did the adapters work? The go on your hub, and then they make it a different bolt pattern? I just don't understand how they would work.:screwy:

Wow. They do look really nice.

Basically take of the wheel. Put the adapter on the hub and lock down the provided lug nuts. Put the new wheel on and bolt it down. They fit like a glove as long as they are hub/wheel centric. The wheel adapter is about 1inch thick, and a socket bored down into the spacer about 3/4 where the lug nuts fits, and a hole bored straight through the adapter in the center of the socket. So when the adapter is on, the original lug bolt are not sticking out past the adapter, and the adapter has new lug bolts of its own. They are strong as hell and will outlast the car even in a broad side wreck as seen in the pic. Go to wheeladapter.com if your interested.


(Mustangs suck:iceslolan, but these adapters are great.)
http://www.wheeladapter.com/images/chris_mustang.jpg