| 2k3Civic |
| do they actually work even if their the same size as your stock discs? what if their a generic brand, will i even notice any difference? or are they more of looks and same performance? TIA. |
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| ChromeDragon |
The idea is that they will let the gases created when braking escape and the pad and rotor to keep cooler. I've never actually compared differences myself though. Slotted rotors are designed to continually "resurface" the brake pad by "shaving" away the surface of the pad when braking. From what I've heard this works well, but goes through pads at an accelerated rate. I have yet to experience brake fade in the Corolla, but that may be because it takes quite a few stops for a 2000lb car to heat of 4 wheel discs.
Chromey |
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| 98 teg |
| I've got kvr cross drilled rotors with kvr brake pads, feels aa little better, and very little brake dust |
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| SRBURG13 |
Slotted is the way to go instead of cross drilled. There are plenty o' horror stories of cross drilled rotors craking between holes, and eventually cracking all of the way under the extreme heat. Cross drilled look cooler, but may be worse in the long run.
Then again, what are you purposes for these brakes? Autocrossing and other racing, or just everyday driving? If it is for racing, slotted, if not, and its for the show factor, cross drilled, but make sure they are from a reputable manufacturer. |
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| IH8V8S |
quote:
Originally posted by SRBURG13
Slotted is the way to go instead of cross drilled. There are plenty o' horror stories of cross drilled rotors craking between holes, and eventually cracking all of the way under the extreme heat. Cross drilled look cooler, but may be worse in the long run.
Then again, what are you purposes for these brakes? Autocrossing and other racing, or just everyday driving? If it is for racing, slotted, if not, and its for the show factor, cross drilled, but make sure they are from a reputable manufacturer.
Cross drilled rotors are not the devil! There have been many cases where they crack but it's almost always due to crazy amounts of heat like in road course lapping on a tight course with R-compounds or a mechanical problem like a sticking caliper. For 90% of people cross drilled rotors will be fine. For the other 10% that actually use their brakes to their full potential and beyond, a set of slotted or "dimpled" rotors would be marginally more reliable. Just so you know, solid disks can crack too from excessive heat too, not just cross drilled. There's my $0.02!
Krazy Karl :beer: |
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| 98 teg |
also slotted on a road course, because of heavy use, when I was looking for a brake conversion one site said most cars that road race use a slotted or solid disk, cross drilled work great on 1/4 mile cars since they disipate heat better and are used just to slow down.
The only thing to watch is is the brembo disks, which are drilled buy an outside sourse and are then sold as brembo x- drilled and those ones are not covered by brembo at all |
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| Bucktown |
| so wouldnt slotted AND cross drilled be the best of both worlds? or are they just to weak? i onced watched a mechanic drop a ceramic rotor.....smash! that was brutal.... |
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| Bucktown |
| so wouldnt slotted AND cross drilled be the best of both worlds? or are they just to weak? |
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| JustinL |
I personally would go with a rotor that was cast with the holes. Drilling through a perfectly good rotor seems a waste. I believe all new Posches have zimmerman rotors that are cast with holes and not drilled.
Justin |
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| REFLUX |
From what I've heard, it is NOT often that someone needs to use cross-drilled AND/OR slotted rotors.
The average driver certainly does not even go near using the full potential of a stock, flat faced/blank rotor; whether it be on the track or on the street.
Personally, the only time that I see using slotted/cross-drilled rotors necessary is if you are an experienced TRACK/AUTOX driver who is ON a track, whose car has both performance brake pads (track only pads) and brake ducting but STILL experience brake fade.
I'm quite certain that the cost of higher performance brake pads and brake ducting COMBINED is cheaper than good quality slotted/drilled rotors!
With that said, the amount of braking an average/above-average driver does on a track would most likely suffer by the decreased surface area of a slotted/drilled rotor. They have a high probability of not making use of the pads&rotors enough for the slots/drills to be of any benefit to them.
In other words, for the vast majority of cars that you see with slotted/drilled rotors, it is just for the BL!NG factor.
I wouldn't think differently unless the same car has a rollbar/cage and is semi-stripped with brake dust making their rims look flat black/gunmetal |
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| 2k3Civic |
| that's pretty much what i'm going for, the show car look with the rotor's, plus i'm doing a disc conversion and my friend has rotor's that will fit my car and he'll let me have them for cheap. so might as well. but ya, i'd like to try autocross, but more for just looks then anything. drums suck for braking compared to discs. thx for all your help guys. |
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