Lighter rotors = more RWHP?

[Anaconda]

I have some EBC rotors on the way. They weigh 3 pounds less than stock, or 6 pounds for the rear wheels. Now, theoretically, that should give me more RWHP since it is 6 pounds less of rotating mass, correct? I know the difference is practically non-existent, I was just curious. At the very least, I am dropping 12 pounds off the car. Thanks.

 

[cgmaster]

Any time you reduce rotating mass it helps. On another note the weight of the rotors is also unsprung weight. Reducing unsprung weight will help with your handling. Reducing the moment of inertia is what will help with engine acceleration.