Quote:
Originally Posted by s0ldats
^^ would love to see if any of that data was collected too
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Bunch of M2 guys have done this, great results on the track. If it works for Porsche, you know it'll work. Porsche engineers don't add weight to the car unless it's functional. Hell, the GT3 RS don't even have real door handles and the Porsche crest is a decal instead of a 1oz badge.
OP: You do not want to cut the shields. The idea of these ducts are to bring fresh air to the central hub, at high speed the air will make its way to the hub area (fluid dynamic engineers can better explain this). The rotor is a fan that draws air from the hub to cool BOTH sides of the rotors. The shield channels the fresh air to the hub area, purposely blocking the rotor. Blowing fresh air directly at one side of the rotor disrupts this "fan movement" and uneven cooling of one side of the rotor. See below what a true duct is supposed to bring air to. What this means is most of the aftermarket brake duct shield adapters out there are flawed if it just hits the one side of the rotor surface.
M2 DIY, so don't follow it for our cars, just use as a reference:
https://www.youtube.com/watch?time_c...ature=emb_logo