'09 Sonata GLS - OEM Tire Noise
#12
01-19-2010 | 04:42 AM
Senior Member
Joined: Aug 2008
Posts: 111
From: Indianapolis, Indiana
On a daily driver, nitrogen is a waste. When I lived in Fairbanks, Alaska, nitrogen was a must in winter months (-20F and colder) as it would cut down on the rim leaks.
For racing, where an absolute steady pressure must be maintained throughout a tire's temperature range it is useful.
For racing, where an absolute steady pressure must be maintained throughout a tire's temperature range it is useful.
#13
01-19-2010 | 04:53 AM
Senior Member
Joined: Aug 2008
Posts: 111
From: Indianapolis, Indiana
Yes, I've tried my best to keep up with the rotation (at 7000 miles) and checking tire pressures everyday ! (my neighbors can vouch for that as they keep giving me strange looks during the morning when I check the tire's pressure).
It's not the tread ... there is plenty left its just that the tires have started making so much noise that we can't have a discussion inside the car. I don't remember that happening when the tires were new. It was a really quite car (my other car is an '02 Camry - this one was quieter than camry). Thats why I was interested in getting them changed.
I have narrowed down my choises to General Altimax HP (95H) rated or Kumho Ecsta Platinum (95V) rating. With the general I was thinking about going for 225 size instead of 215 .... because it has a round edge and I was thinking maybe I'll compensate for the sharpness and body roll by having a slight larger size BUT thats just my "thought" for now. I don't want to change the OEM size.
What do you think?
MSK
It's not the tread ... there is plenty left its just that the tires have started making so much noise that we can't have a discussion inside the car. I don't remember that happening when the tires were new. It was a really quite car (my other car is an '02 Camry - this one was quieter than camry). Thats why I was interested in getting them changed.
I have narrowed down my choises to General Altimax HP (95H) rated or Kumho Ecsta Platinum (95V) rating. With the general I was thinking about going for 225 size instead of 215 .... because it has a round edge and I was thinking maybe I'll compensate for the sharpness and body roll by having a slight larger size BUT thats just my "thought" for now. I don't want to change the OEM size.
What do you think?
MSK
Study the manufacture's data on diameter/circumference/rotations per mile to make sure before you lay your money down.
Here's a neat calculator: http://www.miata.net/garage/tirecalc.html
#14
01-19-2010 | 12:52 PM
Thread Starter
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Junior Member
Joined: Aug 2006
Posts: 16
From: Mission TX
Using the calculator at http://www.miata.net/garage/tirecalc.html
Stock Tire (215/60 R16)
Sidewall: 5.1 in
Radius: 13.1 in
Dia: 26.2 in
Circumference: 82.2 in
Revs/Mile: 771.0
New Tire (225/60 R16)
Sidewall: 5.3 in
Radius: 13.3 in
Dia: 26.6 in
Circumference: 83.7 in
Revs/Mile: 757.0
Speedo reading is 1.8% too low. So when the speedo shows 60 mph, the car is actually travelling 61.1 mph.
hmm, I can live with 1.1 mph difference but not with body roll (because General Altimax has round edges) ..... so am still going for the slightly larger width tire!
Stock Tire (215/60 R16)
Sidewall: 5.1 in
Radius: 13.1 in
Dia: 26.2 in
Circumference: 82.2 in
Revs/Mile: 771.0
New Tire (225/60 R16)
Sidewall: 5.3 in
Radius: 13.3 in
Dia: 26.6 in
Circumference: 83.7 in
Revs/Mile: 757.0
Speedo reading is 1.8% too low. So when the speedo shows 60 mph, the car is actually travelling 61.1 mph.
hmm, I can live with 1.1 mph difference but not with body roll (because General Altimax has round edges) ..... so am still going for the slightly larger width tire!
#15
01-19-2010 | 03:51 PM
Senior Member
Joined: Feb 2008
Posts: 133
If you are looking for a little crisper handling you might want to drop down to a 55 aspect ratio (225/55/16). It is only 1.6% different than your stock size but the slightly shorter sidewall might give you the feel you desire.
#16
01-19-2010 | 05:42 PM
Super Moderator
Joined: May 2005
Posts: 5,301
From: Cyberspace
Actually, step up to 17" (or even 18") wheels and tires.
17"
- 215/55-17 = 0.7% shorter than stock
- 225/50-17 = 0.8% shorter than stock
18"
- 215/50-18 = 1.3% shorter than stock
- 225/45-18 = 0.8% shorter than stock
17"
- 215/55-17 = 0.7% shorter than stock
- 225/50-17 = 0.8% shorter than stock
18"
- 215/50-18 = 1.3% shorter than stock
- 225/45-18 = 0.8% shorter than stock
#18
01-19-2010 | 08:49 PM
Super Moderator
Joined: May 2005
Posts: 5,301
From: Cyberspace
Well, if you are looking for a little crisper handling from different tires you're not going to get it from ones that are wider and taller. To get crisper handling you need to lower the sidewall height while keeping the overall tire height the same. The only way to do that is with larger wheels.
If you want to keep the same size wheels then you need to change the springs and go with the thicker anti-sway bar.
If you want to keep the same size wheels then you need to change the springs and go with the thicker anti-sway bar.
#19
01-30-2010 | 03:25 PM
Member
Joined: Sep 2009
Posts: 29
From: Clearwater, FL
You can get better handling just from changing tires, so keep that in mind. If you go to a 55 series tire, that will help, but the car may look funny due to increased wheel-well gap. You will also change the ride of the car, and your speedo will be off, as well as the odometer.
As Nova said, if you move up in wheel size, that will help. Even moving into the 17" Limited/SE wheel, factory size is 225-50-17, and you may be able to get a set locally from someone else that is upgrading.
You know what they say, speed cost money, how fast do you want to go?
As Nova said, if you move up in wheel size, that will help. Even moving into the 17" Limited/SE wheel, factory size is 225-50-17, and you may be able to get a set locally from someone else that is upgrading.
You know what they say, speed cost money, how fast do you want to go?
#20
02-04-2010 | 11:44 PM
Thread Starter
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Junior Member
Joined: Aug 2006
Posts: 16
From: Mission TX
@NovaResource & BottlefedLX ... thanks for the insights and info. Appreciated. Considering this is just my daily driver (read workhorse) I'll save my money for my dream car, which I'll buy in a couple of ......... years (!!!) and just replace the tires with the orig specs. Meanwhile I've run into a different problem altogether, with the transmission .... mentioned in its own thread elsewhere on the site. So am saving my money until I get that figured out
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