cons to slotted rotors

[D1SR240]

What are some cons to having slotted rotors? I know it takes of the rotor mass, but how is that bad?

[chmercer]

the removal of material makes them lighter and able to dissapate more quickly, but this also makes them less durable. From what i have heard from veteran roadracers, only wealthier road race teams use slotted /drilled rotors because they need replacing very frequently. I believe just regular vented blanks with good pads are the best for the road/occasional autox.

please somone correct me if im wrong?

[[GoaTSLonG]]

slotted, are meant to unglaze pads after they heat up from road racing. They actually take off a tiny *** layer of pad surface to unglaze them.

[SmithSR]

Noisier, wear pads quicker, probably cost more because you buy them with the idea of a performance upgrade, when actually, they make a dull howl when braking, and wear standard pads faster, costing more money. The slots work a bit like a razor blade on your pads, shearing them quickly..

Like cross drilled rotors, slotted are more about novelty than actual performance in the real-world daily commute.

Thicker, larger rotors dissipate heat better, helping to prevent brake fade. More mass = better braking

[rico05]

Aparently 15k miles is a long life for slotted/drilled rotors. I have Brembo blanks. You should too;)

[SmithSR]

I agree!

[Q45tech]

If your rotors don't last 40,000 miles [average mix of highway/city] your pads are too aggressive or the metal in the rotors is very low quality.

You should be able to retrue every 6-10k and still make the 40k.

On car lathes have a hard time not bouncing with drilled or slotted.

[D1SR240]

hey rico wehre did you get your blank brembos?

[chmercer]

q45tech - what does retrue mean? and what about lathes?

(im guessing retrue = getting your rotors machined?

[Dori Dori]

The lathes are the machines that resurface (retrue) rotors.

Another con is that I couldn't stand the oscillation in the brake pedal and I didn't feel the initial 'bite' was as stong.

[Grant@tirerack]

The down sides are as stated, slightly faster pad wear, more dust, slightly more noise in some cases. Most folks will be fine with a solid rotor for street use anyway. Me, well, I have Powerslot rotors on all or vehicles. The just look so much better (no rust) That is a big plus for me.

[mrbean]

Would brembo blanks hold up well if I took it to the tracks once in a long while for drag or drifting? I'm talking like once a month max. Or would just a pad or caliper upgrade suffice?

Also, does brembo actually make just slotted rotors? Everywhere I've looked I always see drilled/slotted or just drilled...

[chmercer]

what is the actual race purpose of drilled and slotted rotors, from somone who knows what they are talking about?

[Ceptos]

mrbean, a comment on those brembo rotors you mentioned. be careful when purchasing rotors that say they are brembo drilled, slotted, and especially both. brembo doesnt actually offer drilled AND slotted rotors for stock replacement. this means they have been drilled and/or slotted by someone other than brembo.

i asked about this before and someone told me that rotors that are drilled and/or slotted from the factory are designed for it, and have 'extra' mass to make up for it. the company that buys a brembo rotor and drills/slots it is taking away a lot of neccessary mass. just a heads up =)

i think you can get brembo slotted OR drilled rotors direct from brembo. check around on some of the featured sites on this forum, but be careful about ebay brembos.

there is a company someone posted a link to a while go that sells its own rotors, i cant remember the name, like xrotors or something?

[D1SR240]

Also, does brembo actually make just slotted rotors? Everywhere I've looked I always see drilled/slotted or just drilled...

I think enjuku has just slotted ones.

[mrbean]

ceptos: Are you talking about irotors?

Does anyone know if their rotors are actually custom made or are they just drilled brembos?

Anyone tried them out? They seem like a great deal if they are actually custom fabricated and not cheap knockoffs.