Just did 400km or so on my new set of Brembo slotted rotors... they don't seem to have the characteristic of a "better initial bite" from cross-drilled rotors, however it won't have the cons such as over-cooling in the Canadian winter nor decrease braking surface. It pretty much feels like regular OEM rotors (mine has 3 slots each side), you almost won't notice the car is braking better until you stare at the speedo. Instead of showing better initial bite, the pads will grab the rotors better in the middle to end of braking process since the slots are slotting away the brake dust off the rotors. Because of this, it also requires less braking effort compare to OEM rotors. Also slotted rotors might eat your pads faster than usual, but if that's what it takes for me to stop the car quicker, IMO it's worth it.
So you're saying having slotted rotors does shorten your pad's life?
I know this up in Niagara Falls that's called Automotive Warehouse (I don't know if any of you have dealt with them).
They are a distributor to many shops around Ontario, and they sell pads with lifetime warranty, meaning you can buy the pads once and everytime they wear out you take them back with the box and they give you new ones free of charge.
I don't know if they have that offer still, but it sure is worth it if you don't mind driving and hour or so every time your pads are done.
they also had many products that were cheaper compared to prices here in the GTA.
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As long as the slots don't go all the way to the edge like power slots. I have seen pictures of powerslots that have cracked because taking the slot al the way to the edge of the rotor undermines the structural integrity.
As for lifetime pads I would not recomend it. They had the same deal at Kragen Auto Parts here in California, and I was like"shit I can't lose here, they are cheaper than OEM and I get free replacements for life."
Let me tell you I didn't even wear out the first pair before I went back to the Toyota Pads. Those things squeeled like hell with any brake application depspite the shims and even spraying on some of that anti-squeel stuff. Besides that they did not grip as well as OEM.
any rotor drilled,slotted or solid will crack...
remember it is metal and metal does have it's limits, extreme heat or rapid cool down such as (well really hot rotors being sprayed with water ) will crack the fuck out of um
well this is how i see the dif between the three as in usefull ness and what not
solid: desent for everyday driving for the regular person
drilled: good for cooling..i see these as being good if you live some where like cali or florida and drive semi to hard
slotted:extends the life of your rotors because the slotts act like blades to your pads and slice all the crap of um everytime you brake... i'd recommend these if you live off a dirt road
where as for performance drilled and slotted would be the best because not only does it keep everyting cool it also cleans the pads constantly
the only bad thing with drilled is they can warp fast (this was a problem porsche had with there's years ago but i thing they've been getting better and better over the years and materials used for rotors
well thats my 2 cents
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