S2Charlie

i know changing the rear end ratio doesn't give you any horsepower... but does it goive you any torque??? Seems like it must... the car does PULL harder...
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lldsandsll

it doesn't effect engine torque, but if i had to guess, i'd wager to say it multiplies effective torque to the wheels or something like that.

Phraoz007

Basically, makes you faster off the start, lower on the top end. GG VIDEOGAME KNOWLEDGE FTW!!!

ratnacage

The answer is yes and no. Changing the gear to a higher ratio does in fact increase torque at the wheels, thus providing quicker acceleration, however, you won't see this on a dyno chart. Dyno's correct for torque multiplication in the drive train by comparing the engine rpm and roller speed -"rear wheel torque" (rwtq) on a dyno is actually a bit of a misnomer as it's really just showing you engine torque minus drivetrain losses rather than absolute rwtq.

If you're bored, read this: http://www.mustangsandmore.com/ubb/D...orqueVsHP.html

s197richie

^^^ If I'm not mistaken, the whole pointof gearing shorter is to maiximize the time your car spends in its powerband...

but I do know this....uh...make car go fast...lol...

Stkjock

drive train mods from the flywheel back will not change engine HP or Torque. How could they! they can free up HP, due to decreasing parasitic loss, to the rear wheels but in no way can create engine power...

BTW - exhaust is in front of the flywheel IMO.

Stkjock

it does accomplish that...however I belive the multiplication of the engine torque is the real effect of a change in gearing and results in more "work" being produced at the wheels and increasing your acceleration.

BTW - in reduces your top end

Aziraphale

Pretty much all good answers here. The ratio multiplies your torque to the ground. The higher the number, obviously, the more torque so the faster you can accelerate. It also does help to get you into your powerband quicker.

S2Charlie

I know it limits my top end... but 3.73's... I shouldn't be doing 160+ neway