View Single Post
Old 10-08-2002, 06:32 AM   #4
Jeff Chambers
Moderator
 
Jeff Chambers's Avatar
 
Join Date: Aug 2000
Location: Milan, OH
Posts: 2,699
Default

4.56's and 26" tall slick put me through the traps at about 7100rpm at 121mph. If I were still a stick car, I'd never consider shifting to 5th (on a 5-speed transmission anyways). The 5th gear is very weak and its underdrive becomes a torque de-multiplier.

You'll need to set your sights on what kind of performance you aim to get out of the car and then select your gearing based on that MPH, the desired rpm at the stripe (usually about 400rpm above peak HP), and the size of tire you'll be using. Gearing is everything so do your homework.
__________________
Jeff Chambers
1990 Mustang GT 10.032 Seconds / 137.5 MPH
14-time Street Warrior World Record Setter
CRT Performance
2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH
2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2

"There's nothing boring about a small block automatic shifting gears at 9400 rpm!"
Jeff Chambers is offline   Reply With Quote