New Wheels And Tires - Page 2 - Kia Forum

Reply
 
LinkBack Thread Tools Display Modes
post #11 of 24 (permalink) Old 02-01-2006, 11:07 AM Thread Starter
Member
 
rdmnster's Avatar
 
Join Date: Jan 2006
Location: Columbia, SC
Posts: 32
Drives: 2005 Kia Spectra5
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Thread Starter (Thread Starter)
I dont think 40psi will be detrimental. The max pressure on the sidewall is 50psi at 1357 pounds, but I will double check with Yokohama. Thanks


Alex
His; '05 Spectra5
Hers; '05 Sedona EX
rdmnster is offline  
Sponsored Links
Advertisement
 
post #12 of 24 (permalink) Old 02-01-2006, 11:15 AM
Premium Member
 
1fastkia's Avatar
 
Join Date: Nov 2004
Location: Vermont
Posts: 6,121
Drives: 2015 Buick Verano "Leather Group", 2015 Kia Optima Hybrid
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)

My 205/40/17 toyo proxy fz-4 tires call for 35psi. Ive never seen a tire for a car with 45 series or less sidewalls call for any more than 35 psi. it would just be to hard on the sidewall....... the sidewalls on a 40 series tire are lucky to be 2 inches high off the rim... it would be hitting bumps like a rock... also handling would go down the drain, and be lucky if you hit a bump with 50 psi and not blow the tire out..




2015 Buick Verano Leather Group
2015 Kia Optima Hybrid
1987 Mazda RX-7 GLX


The Old
99 Sephia, 01 Spectra, 05 Spectra, 08 Sportage
1fastkia is offline  
post #13 of 24 (permalink) Old 02-01-2006, 11:15 AM Thread Starter
Member
 
rdmnster's Avatar
 
Join Date: Jan 2006
Location: Columbia, SC
Posts: 32
Drives: 2005 Kia Spectra5
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Thread Starter (Thread Starter)
04Amanti, I will pull off the fronts again today. I am getting vibrations some times and not others at the same speed. For example when I am doing 50mph it'll be nice and smoth then the vibrations will start and then go away.

Alex
His; '05 Spectra5
Hers; '05 Sedona EX
rdmnster is offline  
 
post #14 of 24 (permalink) Old 02-01-2006, 11:18 AM
Premium Member
 
1fastkia's Avatar
 
Join Date: Nov 2004
Location: Vermont
Posts: 6,121
Drives: 2015 Buick Verano "Leather Group", 2015 Kia Optima Hybrid
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)

also dont forget the sport tires are made of a much harder compound than a regular tire . with the hard compound and high or low tire preasure will wear in half the time if you had correct preasure.




2015 Buick Verano Leather Group
2015 Kia Optima Hybrid
1987 Mazda RX-7 GLX


The Old
99 Sephia, 01 Spectra, 05 Spectra, 08 Sportage
1fastkia is offline  
post #15 of 24 (permalink) Old 02-01-2006, 12:17 PM
Full Member
 
04Amanti's Avatar
 
Join Date: Dec 2005
Posts: 106
Drives: 2004 Kia Amanti
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Quote:
My 205/40/17 toyo proxy fz-4 tires call for 35psi. Ive never seen a tire for a car with 45 series or less sidewalls call for any more than 35 psi. it would just be to hard on the sidewall....... the sidewalls on a 40 series tire are lucky to be 2 inches high off the rim... it would be hitting bumps like a rock... also handling would go down the drain, and be lucky if you hit a bump with 50 psi and not blow the tire out..
My 275/45/20 Kumho Ecsta STX tires list a max tire pressure of 51PSI cold...

My 245/45/18 General Exclaim UHP tires also list a 51PSI max pressure....

35 psi seems low for a low profile tire...

An underinflated tire will generate much more heat (and wear) then one inflated to spec and will leave you with MORE of a chance of a blowout.

A fully inflated tire will outhandle an underinflated tire any day and all day long.

When you inflate/air up tires, you should do so when they are cold. I inflate all my tires to 5psi under max tire pressure to allow for the 3-4 psi increase in pressure when they heat up.


I have run all my cars for years and many thousands of miles at near max-psi. Absolutely no uneven wear whatsoever and many of the sets have lasted over the warranteed mileage span.

'04 Kia Amanti - Pearl White w/Leather Package
Mobil 1 / 20% Tint / 18" Chrome Wheels / Opirus Grille / Class II Trailer Hitch/
04Amanti is offline  
post #16 of 24 (permalink) Old 02-01-2006, 12:19 PM
Full Member
 
04Amanti's Avatar
 
Join Date: Dec 2005
Posts: 106
Drives: 2004 Kia Amanti
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Quote:
also dont forget the sport tires are made of a much harder compound than a regular tire . with the hard compound and high or low tire preasure will wear in half the time if you had correct preasure.

That is actually often not the case. Ultra high performance tires (especially summer tires) are mostly made with softer rubber compounds. Hence the grippier nature of the tires and the lower treadwear rating.

'04 Kia Amanti - Pearl White w/Leather Package
Mobil 1 / 20% Tint / 18" Chrome Wheels / Opirus Grille / Class II Trailer Hitch/
04Amanti is offline  
post #17 of 24 (permalink) Old 02-01-2006, 12:24 PM
Full Member
 
04Amanti's Avatar
 
Join Date: Dec 2005
Posts: 106
Drives: 2004 Kia Amanti
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Quote:
04Amanti, I will pull off the fronts again today. I am getting vibrations some times and not others at the same speed. For example when I am doing 50mph it'll be nice and smoth then the vibrations will start and then go away.

You may want to try to find a tire shop that will do "roadforce balancing". They will have a special tire balancing machine that will balance tires simulating as if they were mounted on your car under load and at higher speed. This gives a much better balance than standard tire balancing machines. It is pricey though.

'04 Kia Amanti - Pearl White w/Leather Package
Mobil 1 / 20% Tint / 18" Chrome Wheels / Opirus Grille / Class II Trailer Hitch/
04Amanti is offline  
post #18 of 24 (permalink) Old 02-01-2006, 05:09 PM Thread Starter
Member
 
rdmnster's Avatar
 
Join Date: Jan 2006
Location: Columbia, SC
Posts: 32
Drives: 2005 Kia Spectra5
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Thread Starter (Thread Starter)
Can you tell me if "road force" balancing is the same as "static" balancing? Also do you recommend a national tire chain or maybe a specialty type shop, ie racing?

Alex
His; '05 Spectra5
Hers; '05 Sedona EX
rdmnster is offline  
post #19 of 24 (permalink) Old 02-01-2006, 05:55 PM
Full Member
 
04Amanti's Avatar
 
Join Date: Dec 2005
Posts: 106
Drives: 2004 Kia Amanti
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Roadforce balancing is different from static balancing. Static balancing is how most passenger/truck tires are balanced.


Go to: http://www.tirerack.com/

At the bottom right of the page, look under "Getting It Installed". There is a place to enter your zip code. It will then list the tire installers in your area, including those who are roadforce balance capable.


I would not recommend a "racing shop" unless it is known to be reputable.

'04 Kia Amanti - Pearl White w/Leather Package
Mobil 1 / 20% Tint / 18" Chrome Wheels / Opirus Grille / Class II Trailer Hitch/
04Amanti is offline  
post #20 of 24 (permalink) Old 02-01-2006, 07:26 PM Thread Starter
Member
 
rdmnster's Avatar
 
Join Date: Jan 2006
Location: Columbia, SC
Posts: 32
Drives: 2005 Kia Spectra5
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Thread Starter (Thread Starter)
Thanks for the info, I am headed to a Goodyear shop about a mile from my house tomorrow and we shall see how the roadforce balance works.

Alex
His; '05 Spectra5
Hers; '05 Sedona EX
rdmnster is offline  
Reply


Top

  Kia Forum > Technical > Suspension, Wheels and Tires



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



  Similar Threads
Thread Thread Starter Forum Replies Last Post
Southern California: 2016 Kia Sorento OEM 17" Wheels & Tires - only 857 miles VelyC Parts For Sale / Trade 2 01-07-2016 04:31 AM
Spectra 5 Wheels & Tires Atomicbeaker Suspension, Wheels and Tires 2 11-21-2007 11:13 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On