tire size and gear ration for quater mile - Ford Muscle Forums : Ford Muscle Cars Tech Forum
LinkBack Thread Tools
post #1 of 2 (permalink) Old 04-18-2017, 07:08 AM Thread Starter
Registered User
Join Date: Aug 2015
Location: pittsburgh, pa
Posts: 7
tire size and gear ration for quater mile

Im currently running 305/40 18 drag radials. I have 3:73 gears. 6 speed manual. Im having to shift into 5th gear in the 1/4 mile, Current tire is 28 inches tall. If i go with 305/35 18, thats a 26 inch tire, will that smaller diameter tire get me through the traps in 4th instead of 5th. im not sure how tire size affect gear ratios. thx Rich
rmoeslein is offline  
Sponsored Links
post #2 of 2 (permalink) Old 04-18-2017, 10:17 PM
Registered User
Join Date: May 2008
Posts: 573
Re: tire size and gear ration for quater mile

It will be the other way around a smaller diameter will cause more RPM so you will have to shift into % sooner!
A taller tire is what you need to drop the rpm so you can go faster!
MY TWO STANGS is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Muscle Forums : Ford Muscle Cars Tech Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
gear ratio and tire size question for 1/8th mile rmoeslein Drag Racing 3 09-14-2015 06:31 AM
Tire size vs gear ratio... Texasbikers Galaxie Pages 29 11-25-2012 10:04 PM
What rear gear and tire size? saleenstang88 Drag Racing 9 02-10-2010 03:53 PM
Tire Size & Gear Ratio? GregS All Ford Techboard 2 11-18-2003 07:07 PM
How will tire size affect my 1/4 mile times? 1970coupe All Ford Techboard 7 05-07-2003 10:43 AM

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

For the best viewing experience please update your browser to Google Chrome