Anyone have luck with slotted rotors?

MattP725

Heating also partially liquifies the surface on a lesser pad which contributes. That is why they slot rotors, to alieviate the gas build up on the pad surface.

I always kinda felt they were somewhat of a scam (not literally but just not worth the money).

ResIpsa

The slots on the rotor are not there to lower rotor temps.

This may seem counterintuitive but any type of slot or drilled hole in a rotor will increase temperatures. Remember, the rotor is a heat sink. The more metal available to collect and dissipate heat, the lower the rotor temperature will be.

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ChrisSlicks

Yep, slots won't help cool the rotor at all. They will act like a cheese grater on crappy pads however. Run good pads and good fluid at the track and the fade problems will be mostly gone. You may still overheat the rotors by the end of a 20 minute session depending on how fast and hard you are.

These cars are so hard on the brakes that I don't think there is a usable compromise pad that will work on the street and the track. HPS is a good street pad but wont hold up long at the track, HP+ are awful at everything, DTC are decent on track but can't be used on the street. Honestly 2 sets of pads are required. I like the sintered pads for that as there is no bedding required and they handle extreme temps with zero fade.

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SPOHN

Stop reminding me. But I am going to go ahead and use them up. Then I'll have to buy some street pads and track pads. Good thing I get hugh discounts on brake stuff.

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cossie1600

You will need new rotors after the HP+ chew it up at the track....