wheresbao

r they aftermarket rotors the same size as the stock rotors or r they baigger/ smaller ( powerslot rotors for example)

WarrenW

I imagine they can come in several different sizes. One thing to note, the guys on "Sportscar Revolution" swapped over to bigger rotors on an Acura and they ended up losing HP at the wheels because the rotors were a good bit heavier. Granted, that's a FWD car, but the same thing might happen if you put bigger ones on the rear.

Also, I don't know if bigger rotors would add more sprung or un-sprung weight to the car. I would think sprung weight you could deal with.

In case you're not familiar w/ sprung vs. un-sprung weight, evey pound of un-sprung weight is worth 6 pounds of sprung weight. Example - if you switch to a larger rim that's 5 pounds heavier than the stock rim, that has the effect of adding 30 pounds of weight to that corner. 30 extra pounds to a corner! Not may not seem like much, but multiply that by 4 corners and you have effectively added 180 extra pounds to the car. That's like carrying an extra person around with you.

But I digress. As I said, I don't know if a rotor is counted as sprung or un-sprung weight. Somethng to consider.

Warren

VAD

OE replacement rotors, like the ones you get at CarQuest or NAPA, will be dimensionally identical to the originals.

SIIK2NR

Aftermarket rotors are the same size as OEM and you can get them slotted or crossdrilled and they use the OEM calipers.

If you get a Big Brake Kit (BBK) The rotors will be anywhere from 12-14 inches and will require aftermarket calipers.

There are a lot of people who run aftermarket rotors with stock pads and calipers.