Re: 3.55 or 3.90 in an R/T ?

From: Bernd D. Ratsch (bernd@texas.net)
Date: Thu Sep 09 1999 - 17:10:04 EDT


At 04:24 PM 09/09/1999 +0000, you wrote:

>The lower 3.92:1 gears put more power to the ground than the higher 3.55:1
>gears bearing in mind that the engine's power has not changed but that the
>available torque to the tires has. Considering that lower gears (3.92)
>provide greater torque multiplication, it more likely that traction will
>be a problem off the line.

Transmission, Tire compound, and Driver depending.

>More often than not, typical street machines generally run quickest with lower
>gears (3.92) on the dragstrip but there are other factors which can make using
>higher gears (3.55) the exception to the rule e.g. if the engine has gobs of
>low-end torque and doesn't like to spin at high rpm or/and if nitrous is used.

Correct. (Obviously the higher class machine - Top Fuel, ProStock, etc...-
are not running 3.90's of 4.10's.)

- Bernd



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