tire size big or small - Fuelly Forums

Click here to see important news regarding the aCar App

Reply
 
Thread Tools Display Modes
 
Old 02-05-2007, 11:43 PM   #1
Registered Member
 
Join Date: Jan 2007
Posts: 35
Country: United States
tire size big or small

If I put smaller tires on my car is that better or worse for mpg and if I have smaller tires in the front than in the rear or vice versa could this damage my car.
__________________

95_corolla is offline   Reply With Quote
Old 02-06-2007, 06:35 AM   #2
Registered Member
 
skewbe's Avatar
 
Join Date: Jan 2007
Posts: 771
Country: United States
Well if your current tires are in decent shape I personally would just pump them up to whatever PSI your comfortable with. Otherwise there'll be more tires in the landfill.

If due for replacement, keeping them the same size would be best for alignment/steering geometry/tire rotation purposes. You'll have more caster if the front tires are smaller.

It shouldn't cause any immediate damage though, unless the bumper is dragging
__________________

__________________
Standard Disclaimer
skewbe is offline   Reply With Quote
Old 02-06-2007, 11:19 AM   #3
ELF
Registered Member
 
ELF's Avatar
 
Join Date: Jan 2007
Posts: 245
Country: United States
Depends on where your driving, all city/ stop and go smaller tires might help mpg. .
but if you do a lot of hwy then smaller might cause a slight loss.
__________________
ELF is offline   Reply With Quote
Old 02-06-2007, 02:31 PM   #4
Team OPEC Busters!
 
GasSavers_Brock's Avatar
 
Join Date: Oct 2006
Posts: 196
Country: United States
Typically larger tires will have a higher rolling resistance, but also might give the advantage of lower RPM at cruising speeds. On the TDI forum larger tires almost always decrease the MPG.
GasSavers_Brock is offline   Reply With Quote
Old 02-06-2007, 02:57 PM   #5
Registered Member
 
skewbe's Avatar
 
Join Date: Jan 2007
Posts: 771
Country: United States
Quote:
Originally Posted by theclencher View Post
...
And you will have less caster if you put smaller tires on the front!
My bad. You will indeed have less caster. Less caster can mean harder to drive in a straight line.

Peakster! how is straight line driving with the doughnuts on front?
__________________
Standard Disclaimer
skewbe is offline   Reply With Quote
Old 02-06-2007, 03:19 PM   #6
Registered Member
 
Peakster's Avatar
 
Join Date: Sep 2006
Posts: 467
Country: United States
Quote:
Originally Posted by skewbe View Post
My bad. You will indeed have less caster. Less caster can mean harder to drive in a straight line.

Peakster! how is straight line driving with the doughnuts on front?
It was a bit interesting . There did seem to be a bit more side movement at highway speeds, but I just thought it was because of the wind, and less grip on the ground.

Wikipedia: "A caster (or castor) is a type of wheel mounted with an offset steering pivot such that the wheel will automatically swivel to align itself to the direction from which it is pushed. They are commonly found on shopping carts and rolling chairs."
__________________

Peakster is offline   Reply With Quote
Reply


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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
iphone experience bearmeister Fuelly Web Support and Community News 5 02-10-2010 11:25 PM
electric l/100km MJ/km Efried Fuelly Web Support and Community News 2 08-25-2008 08:41 AM
195* Tstat SVOboy Experiments, Modifications and DIY 12 04-17-2007 08:27 AM
MetroXFi changed his name! SVOboy General Discussion (Off-Topic) 26 04-09-2006 07:38 PM
VX -- Del Sol engine swap GasSavers_moses General Fuel Topics 28 01-06-2006 04:38 PM

» Fuelly iOS Apps
» Fuelly Android Apps
No Threads to Display.
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 01:00 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.