View Single Post
  #15 (permalink)  
Old 08-05-2008, 01:20 PM
Ron61's Avatar
Ron61 Ron61 is offline
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Dec 2001
Location: Shasta Lake, CA
Cobra Make, Engine:
Posts: 26,615
Not Ranked     
Post

I have a 69 NASCAR type Cobra and it has 3:91 gears in the rear end with a 4 speed. With 25" tires on the back I tack just over 3100 at 60 MPH.

If you can, get one of the little ISKY Ratio Computers. They are just a round cardboard disk with smaller wheels on both sides that will let you set any combination of stuff and read the other. And they are amazingly accurate. I think when I was a kid everyone had them. Once you get your readings in 4th if that is your straight through 1 to 1 gear, then it is easy to use one and determine the RPM, Speed, and gear ratio in 5th.

Ron
__________________
Ron 61
Ronnie Widener


View my Miscellaneous Gallery
Reply With Quote