Will changing gears to 4.10 change what the dyno readings would be? Will you see an increase in the rwhp or will it just cause you power to come on sooner in the rpm band?

 

Won't increase hp...

 

Think of it like the gears on a bicycle. The rear cog, on the back wheel is like your tranmission. The front cog on the bike is like your "rear end." When you change to a lower gear on the front cog (aka rear end in this analogy), the pedaling gets easier right? You can get to your powerband faster, but as a result, your gears all run out quicker.

By switching to 4.10s youll rev faster, but lose a bit of top end.

 

No. It will not show different TQ/HP on a dyno.

Torque will increase to rear wheels with lower gears and the peak TQ and HP numbers will be reached at lower MPH.

Depending on engine output and gear selection can provide better times.

Going from 3.42 to 4.10s on my M6 provides .20 more rearwheel torque provided I could ( no way) get it to the ground without slicks and 12 bolt.JMHO

 

So what you're saying is that the torque curve will rise a little quicker but will not go higher than if you had 3.42's?

 

MPH not RPM.

 

BUBBA...is it just me or did you completely contradict yourself there?

How in the world can a different ring and pinion actually increase horsepower or torque at the rear wheels?

Torque will not increase at all, the only thing that will change is the car will rev through each gear quicker. In an ideal condition this will accelerate the car quicker.

 

it does produce more torque to the rear wheels, not sure if it shows up on a dyno-probably not but it does produce more torque(twisting force) your engine produces so much torque this in turn is multiplied by your trans gear multiplied times your rear gear, this is why first gear feels much stronger than 4th gear. Its a leverage advantage Heres an article for ya that it explains it all
http://www.carcraft.com/techarticles/1007/index.html

 

Good article. Didn't know that about the torque...

 

Who am I to argue with Car Craft...but torque multiplication is different than actual torque. Not a big deal though.
Good article.