Gearing
11 Second Club
Joined: Aug 2005
Posts: 804
Likes: 0
From: Tampa, FL
Anytime you multiply the torque output, you will increase your acceleration. Which is what rear end gears do. The catch is that you have to make sure that you have enough operating rpm at the end of the run.
In your case what are your rpms when you pass the traps? If for example you are at 6400 and your redline/rpm limit is 6600 then you might not have enough room. The difference between 4.11 and 3.73 is .38. So that is close to 300 rpms with a 1:1 tranny ratio. If you have at least that many rpms from redline when you pass the traps, then you can make the switch.
ET wise, I'd have to guess I'd say a tenth to tenth and a half.
-Mark
In your case what are your rpms when you pass the traps? If for example you are at 6400 and your redline/rpm limit is 6600 then you might not have enough room. The difference between 4.11 and 3.73 is .38. So that is close to 300 rpms with a 1:1 tranny ratio. If you have at least that many rpms from redline when you pass the traps, then you can make the switch.
ET wise, I'd have to guess I'd say a tenth to tenth and a half.
-Mark
11 Second Club
Joined: Aug 2005
Posts: 804
Likes: 0
From: Tampa, FL
The very first calculator in the gear calculator section
http://www.wallaceracing.com/Calculators.htm
From 4.11 to 4.56 is a 756 rpm jump at the same mph.
-Mark
