You would never believe that the bolt patern for the 05-07 mustang is the same for the Sonata. (5 x 114) The offset difference is only 1mm difference. (Must 45mm vs Son 46mm) :banana:
I'll have some pics up tomarrow. I tried one of them on the right front and they CLEARED. Yes the calipers and inner fenderwell too. The difference is the tire size. The mustang took 225/50/17 and the Sonata takes 205/60/16.
Now with gas prices going so high that Spungebob is fearing a proctology exam for new fuel sources, i wonder if the oversize tires would help the gas to miles performance?
Keep in mind the GLS Manual's RPM sits at 2950 when its at 74mph so i don't think the torque drive difference will be impared.
I guess I will need to get next to a newer civic to see my actual speed.(have you seen the size of there MPH display)

The only disadvantage is the match the top of the fenders and hang over about 1.5in near the bottom of the wheel well.

Factory size on the V6s was 225/50/17, so you should be fine.

OH Phoooeeeyyy. i ment to say 255/50/17. There is an actual VISABLE size difference. My Bad.

Hi Sort Em. The 255/50-17s are 4.6% larger than your OEM rims. At 74 mph, that will decrease your rpm from 2,950 to 2,814. That will have essentially zero impact on mileage. It might make the engine feel more comfortable, but highway rpm has much less to do with fuel economy than most people think. All the car has to do on the highway is burn enough fuel to generate about 15-20 hp. That is not rpm dependent. As long as the engine rpm remains in the efficient area of its torque curve, it must still burn the same amount of fuel to produce the same amount of horsepower. As an example, the I4 Sonata and I4 Honda Accord with a manual transmission both crank about 2,500 rpm at 60 mph. In contrast, both cars' automatic counterparts crank about 1,900 at 60 mph. That is a huge difference, but both cars’ highway mileage remain essentially the same.

If anything, your fuel economy may decrease very slightly due to the added weight of the wheels. May I suggest you weigh them for a comparison? My guess is that the Mustang wheels weigh 4-5 pounds more than the Sonata wheels. If that guess is correct, the effect of that additional weight, located farther away from the wheel’s axis (taller tire) will significantly increase the wheel’s rotational inertia. Under full throttle, it will probably feel like you added 80-90 lbs of weight to the car. Under light throttle, it will feel like 50-60 pounds. I’m not saying that will devastate your fuel mileage, but if your goal is to increase fuel economy, it won’t help.

This post has been edited by Blue07: Jul 3 2008, 07:39 AM

quick question.. i am looking for some new tires and i see a deal on pirelli scorpion str tires.. I know the stock tires are 215/60/16 but will 215/65/16 work?

Blue07,
I have to commend you on your logistics and knowledge. I was thinking that the rubber contact to the pavement would also make a difference as far as a decrease in fuel ecconmy. I definitely see your point of view and take it in to consideration, but sometimes the real world driving may make a debatable result.
So with that said, I will install them for one tank and see what the results are.
Thanks for all the excellent input, but my stuborness prevails. Pics to follow. :whistling:

I think Blue makes sense, more weight to pull... I know many of the pickups around here are taking off the bigger heavier tires to get better gas mileage. but not sure if its working for them

Excellent! That Mustang is going to look great! :grin:

I agree with Blue07: be careful about the weight of the Mustang wheels. The stock 18" "fan blade" alloy wheels on the 07 Mustang GT I traded in for my Sonata weighed 31 pounds each.

Also, be careful about the bolt arrangement: I know .3MM difference in bolt pattern between the Mustang and the Sonata wheels doesn't sound like much difference, but if the lugs aren't centered EXACTLY in the holes in the wheels, you may create stress in the wheel when you tighten the lug nuts. Stress can cause failures.

An OEM Sonata 17 inch rim weighs 21 pounds.

As an addition to Morrjr's comment, proper rim fitment is important. According to a site connected with Amazon.com, the Mustang rim uses a 70.5 mm hub center, however the Sonata’s hub is only 67.1mm. The weight of the rim is supposed rest on the center hub, not the lugs. The center hole in the Sonata's OEM rim is exactly 67.1 mm wide, so it's designed to fit perfectly on the hub. Since the Mustang rim’s center hole is larger than the Sonata’s hub, it means the weight will rest on the on the lugs. (Or depending on your perspective, once the car is on the ground, ALL of the car’s weight will be on the lugs and not on the center hub, as intended.)

If you happen like the Mustang rims, you can buy hub-centric spacers. They are simply metallic rings that you insert into the rim’s hole to reduce its size from 70.5 mm to 67.1mm. You’ll need to buy four with those exact dimensions. I think they cost something like $3 a piece. Tirerack may even sell them. It’s a good idea for proper fitment.

Anyone know if the hub center and bolt pattern for Hyundai products are the same for the same size wheels across the Hyundai line of vehicles? For instance is the fitment of 16 inch wheels from a 2007 Azera the same as that for 16 inch, 2009 Sonata wheel?

Thanks for any info
elinks

No... they will be bigger, enough to be able to see when they are on the car, and will make your speedometer inaccurate, and could also affect your ESC and TCS as well as possibly even the ABS.

If you are going to stay with the stock rims, stay with the stock tire size.

Thx

Waiting for your pics.

Just picked up an 09 GLS and the stock 16's might be the first change i make. BTW -Is there a rim thread around? What fits/What does not? you know, n00b questions. would like to go to a 17 or 18. not looking for bling, just adding a little more sport to it.

Wow, I forgot all about the center ring.
As an addition to Morrjr's comment, proper rim fitment is important. According to a site connected with Amazon.com, the Mustang rim uses a 70.5 mm hub center, however the Sonata’s hub is only 67.1mm. The weight of the rim is supposed rest on the center hub, not the lugs. The center hole in the Sonata's OEM rim is exactly 67.1 mm wide, so it's designed to fit perfectly on the hub. Since the Mustang rim’s center hole is larger than the Sonata’s hub, it means the weight will rest on the on the lugs. (Or depending on your perspective, once the car is on the ground, ALL of the car’s weight will be on the lugs and not on the center hub, as intended.)

Thanks for the inside info......... That's why I love this forum.

But like he said, you can just use a spacer to correct that. right?

Yup.

Eh... there are cars which are hub-centric and there are some which are lug-centric, both can work, but if you want to try using just the lugs, you need to torque the wheels with the car in the air so that the lugs will pull the wheel into center.

Go to a local tire shop and spend the whopping $20 on some hub spacers :)