Hey guys! I'm hoping you all can shed some light on the matter of which brake rotor is better for my situation.

I have been looking at different rotors for a couple of months to purchase as a track duty set to swap out and I was determined to pick up some DBA slotted rotors and mate them to carbotech pads. However, recently I have been seeing threads and discussions explaining that there is no real gain from slotted rotors other than better initial bite. The argument is that blank rotors are more structurally sound (not prone to cracking), they have more surface area for brake pad contact, and are more durable.

From what I have been reading, unless a rotor is cast with slots or dimples, it can be much more prone to cracking under high temps/force. Should I just pick up some blank centric rotors and beat them to hell then swap them out whenever, or is the slotted rotor more advantageous?

The car currently has this street brake setup:
Brembo OEM calipers
SS line
DBA 4000XS rotors
Hawk HPS pads
ATE Super Blue brake fluid

Thank you,

Matt

 

How serious are these track days?

I'd stick to cheap blanks till every bit counts!

 

Well, keeping in mind that my z is also my daily, I have never track to her limit. Also good
Braking depends on the tires. Currently I am on Michelin super sports which are street tires. I'm not out on the track to set course records. But being able to out-brake cars that cost a lot more than mine is a plus

 

Your information is correct except the initial bite part of slots. Performance pads don't vapor like the ones of old and now the dust is managed well. The slots were created when pads would "gas out".

The other thing that blanks offer is more overall mass which is better for heat management. End the end blanks work better and are cheaper. That is unless you go truly exotic with ceramics.

This was typed on a phone so I am sure the spelling and grammar is pretty bad.

 

There is no performance advantage to slotted or drilled rotors for non-professional race teams.

 

I usually buy from www.rotorpros.net/ They are just generic centric blanks or slotted, your choice. Cheap too.

 

Just buy centric blanks.

 

Thanks guys, I appreciate the feedback. I guess I'll go ahead and pick up some blanks!