Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Change gear ratio on rear end?
Thread: Change gear ratio on rear end?
View Single Post
  #3 (permalink)  
Old 09-14-2009, 12:27 PM
SSedan64's Avatar
SSedan64 SSedan64 is offline
Registered User
  
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 49
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 45 Times in 45 Posts
Here's a Gear/Rpm calculator you can use to see what gear would work well. Go down to the 2nd calculator and input some numbers. It's in MPH but, you can convert to KPH. >> http://hotrodworks.net/hotrodmath/quarter.html

MPH X 1.609 = KPH
KPH X .621 = MPH
Inch X 25.4 = MM.
MM X .0394 = Inch
Sounds like you have about a 3.73 gear, if your rear tire is 26" Dia.
A 3.08 gear would give you 100KPH at 2500rpm.
Last edited by SSedan64; 09-14-2009 at 12:39 PM.
Reply With Quote