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Jan 7, 2018 | 11:47 AM

#16

lowbee

Rennlist Member

Joined: Jun 2016

Posts: 1,781

Likes: 522

From: Toronto

Anyone have data on how much quicker slotted discs wear out pad when compared to drilled discs ? Are we talking about 10%, 30% or 50% ?

Jan 7, 2018 | 12:11 PM

#17

Petza914

RL Community Team
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Joined: Oct 2007

Posts: 28,544

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From: Clemson, SC

Quote:

Originally Posted by lowbee

Anyone have data on how much quicker slotted discs wear out pad when compared to drilled discs ? Are we talking about 10%, 30% or 50% ?

I put slotted 2-piece dba rotors on my wife's street driven C2S at 45,000 miles and she's at 95,000 miles now on the same Hawk HPS pads. Here are pics of both front outboard pads from a few minutes ago. Hasn't even worn down past the tapered edge of the pad yet, so I'd say the additional wear factor is minimal.

Jan 7, 2018 | 03:55 PM

#18

vg247

Burning Brakes

Joined: Jun 2012

Posts: 804

Likes: 116

From: NorCal & NV

Quote:

Originally Posted by Petza914

Slotted rotors will wear the pads slightly faster, but you'll have fresher material contacting the rotor face without any glazing (under harder use). For street driving, I find drilled work the best as it gives the trapped gas layer (and steam layer when driving in the wet) an egress route, but don't like drilled for the track as they're more probe to developing cracks between the holes and it reduces the size of the heat sink.

‘Thanks very much, very helpful information.

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