While rotating my tires yesterday (lmao, there's so much more tread on the front ones ) I noticed that the rear rotors are soo much smaller than the front ones. What would prevent me from getting another front brake setup from a TII and slapping that on the rear? Calipers are different I am guessing, same thing with the rotors and pads. Is that it?

TIA,

Joe

 

Just put some good brake pads and make sure the stock rotors are in good shape. Putting the front rotors and calipers on the rear would be a wast of time. The portioning valve would need replace with an adjustable one and the net outcome wouldn't do anything for your cars stopping ability.

 

Just making sure that you understand that I don't mean from front to back, but removing the back ones and replacing them with a set of front ones, retaining the front ones on the front. Just curious

 

When you slam on the brakes, the car's weight shifts towards the front of the car (and thus off the rear wheels). If both the front and the rear brakes applied the same amount of force, you'd lock up the rear wheels and go into an awesome spin everytime you slammed on the brakes To fix this, they reduce the amount of pressure that is applied to the rear pads, which generates less heat, etc. and enables them to reduce the size (and thus weight ,etc.) of the rear rotors. Reducing the size and the swept area of the rear rotors also helps reduce their stopping power.

OTOH, you could take some awesome, dizzying video after replacing the rear rotors / calipers with front ones

Cya,
Manolis

 

That's all I needed to hear, THX, now go and check out my other q everyone!!

 

A more technical response...

Due to weight transfer and vehicle dynamics, the front brakes do the majority of braking.&nbsp Typically on a FR platform, the front/rear brake split is a 70/30 split.&nbsp This is why the front brakes are larger and more robust than the rears.&nbsp Now, if you've been following that other thread about cross-drilling, this doesn't apply to Porsches, as their dynamic vehicle weight ends up being closer to 50/50 upon braking.&nbsp Therefore, Porsche rear brakes are much more massive than FR cars...

FR = Front engine/Rear drive



-Ted