why taller tires? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-24-2007, 02:38 AM
Registered User
 

Last journal entry: beginning of the 340 challenger
Last photo:
Join Date: Nov 2006
Location: USA
Posts: 100
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
why taller tires?

sorry for a dumb question, but what are the advantages of running taller tires? covering more ground? i know that you would need the proper gear set to run with the tires, i just wanted to get a clear explanation of what taller tires do for the car as far as performance and what not

thanks

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-24-2007, 07:40 AM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 68
Posts: 3,274
Wiki Edits: 0

Thanks: 0
Thanked 84 Times in 75 Posts
Not a dumb question, taller tires may be an advantage or disadvantage, just depends on your set up and vehicles application. Granted a taller tire turns less revolutions per mile but a possible gain in gas mileage will most likely be negligible.
Example...On my F-250 4x4 I went to 315/75/16 Pro Comps because I got a great deal on them. They looked good and rode smoother but I lost 3 miles per gallon because they were a 50 psi tire. I went back to the 265/75/16 E rated 80psi tire. Also bigger tire/wheel combo puts more strain on your suspension and brakes. If you're doing it just for looks, make sure the size FITS your vehicle.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-24-2007, 12:02 PM
Registered User
 

Last journal entry: beginning of the 340 challenger
Last photo:
Join Date: Nov 2006
Location: USA
Posts: 100
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
well i put some 275/60/15 on my car because i was running 3.91 gears... so im guessing the bigger the gears the taller you want to run the tires to keep rpms down?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-24-2007, 12:51 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,946
Wiki Edits: 326

Thanks: 760
Thanked 1,012 Times in 848 Posts
Quote:
Originally Posted by Arillious
well i put some 275/60/15 on my car because i was running 3.91 gears... so im guessing the bigger the gears the taller you want to run the tires to keep rpms down?
Exactly right. For the same rpm's, transmission final gear ratio (1.00 with a Powerglide, TH350 and TH400 for instance) and ring /pinion ratio, a shorter tire will produce slower vehicle speed while a taller tire will produce faster speed. By the same token, for a given vehicle speed with the same tranny and rear, a shorter tire will cause the motor to rpm higher to maintain that speed while a taller tire will cause the motor to rpm lower. Here's a calculator you can play with.
http://www.csgnetwork.com/multirpmtirecalc.html
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-24-2007, 01:05 PM
Registered User
 

Last journal entry: beginning of the 340 challenger
Last photo:
Join Date: Nov 2006
Location: USA
Posts: 100
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
wow thanks
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Where can I get these BFG tires? rusttorod Hotrodders' Lounge 6 04-16-2006 01:20 PM
Pin Heads at Sams Club tires Landau454 Suspension - Brakes - Steering 16 02-15-2006 02:15 PM
Tires for 4" wheels dh79 General Rodding Tech 6 07-27-2005 07:37 PM
help slammed my chevy now tires rub vortec327 Suspension - Brakes - Steering 3 07-22-2003 11:18 AM
How much Torque need to lift front end? unstable Engine 22 02-20-2003 09:54 AM


All times are GMT -6. The time now is 04:27 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.