Which one is better for braking not looks? Factory Size

 

Unless you plan on raing your RSX, neither drilled nor slotted rotors will help. The x-drilling and slotting on rotors is to let the gasses produced from extreme heat to escape (process known as outgassing from your brake pads). They do not aid in the cooling of the rotor. The size of the rotor aids much more in cooling the rotor (the more surface area, the better for cooling). Also, by drilling or slotting material off the rotor, you lose surface area for the pads to contact. If you're going solely for looks, get the slotted rotors as they help in deglazing the pads (tho, your pads will wear quicker). The majority of drilled rotors do not have the holes cast into them, so they're literally drilled in, which will crack if put under severe conditions. If you're a race car, then that's a cost factor you're willing to take, but I don't think it is for a street car.

 

MAN, your a little off there! Cross drilled/slotted do not help in braking even in race conditions.. Brake pads don't gas like the used too.. Also with drilled/sloted, you loose surface area that the pad will be in contact with and also heat isn't spread out within the rotor becasue there is less mass for the heat to be absorbed into... Drilled/slotted rotors are a fad and trust me, thy don't work well in racing conditions, I know myself because I have used slotted on the track and they are compared to solids.. If your gonna get any rotor, make sure it brembo..


good luck

 

Drilled disks won't help wherever and in whichever situation you are for braking. 99% of the people on the track prefer to use solid disks. They have a larger surface, grip better, are more consistant, cool better and are cheaper too. This trend also goes for race-only vehicles. Gasses generated by extreme heat are now no longer a big issue because all track prepped cars no longer use organic brake pads.

Slots may help slightly if pads become glazed and can help deglaze them somewhat, but again, it shouldn't be a concern for most applications...

 

Unless you have some serious calipers like the big boys run ie (Porsche, Ferrari, etc) theres no need for either...
Stick with a full face rotor...it will provide a better surface area for stopping IMO.

The holes are for releasing gasses from heavy braking,which most people wioth hondas dont need to worry about.

 

Most hondas don't reach the speeds nor have the weight to realize the benefits. Outgassing still occurs, but to a lesser degree with today's pads, but it still occurs. A much heavier, high HP car would see some benefits. Take notice that we both mentioned the same points...we only disagreed on the effectiveness in race conditions. Outgassing still occurs...heat those suckers up till they glow red and it'll happen...just not as bad as they used to.

 

It is indeed possible... I've had my rotors red hot, but still no gassing effect. Most Porsche car cup guys actually replace their rotors with solid disks saying they perform much better than the xdrilled ones. There are indeed certain applications where xdrilled may be useful, but not quite exactly sure when and where it could be useful. One person told me that during wet conditions they're beneficial, but don't exactly know to what extent. Good point bhcvc....

 

Why are cross drilled on Porsche's?? So Porsche owners think they are getting the best brakes for the money they spend, its expensive "rice craze"

 

Something like that... Just for maketing purposes... They think it looks nicer and racier(ricier)...

 

when i first passed my test i had a swift gti. the front brakes were knackered so i got some drilled and slotted ones. i used the cheapest pads i could find, (£9 per pair). my friend who also had a swift gti bought new suzuki discs and pads for his around the same time. i drove his car and he drove mine and we both agreed that my brakes stopped the car far quicker. in fact they were the best brakes i ever had(that includes the Pulsar GTiR-227 bhp, and my civic vti-158 bhp). the only thing i can fault about them is the cracks that started to appear around the drilles holes.

if i wasn't planning ITR brakes i would get slotted rotors.

that is just going by my own experiences, and i realise that there are other people that have more experience and knowledge on this matter than me.

what i want to ask those people is why did my swift stop so god damn fast. i have always classed them swift brakes as the most noticable modification i have carried out on any car.

also i remember seeing an article in a mag where they used lots of different rotor/pad combinations and the slotted ones had shorter braking distances.

just thought i'd go up against the big boys with my opinion.......flame at will

 

Damn riceboy...

Thats like having BIG AND HEAVY wheels at the same time, two downfalls in one

 

It is all dependent of pads.... Better pads will bite better, simple as that, no matter what rotors you have.. Up till a point, try both combanations out on a roadcourse and see which is better..

Pedal feel often depends on the fluid and how fresh it is...

 

Watching speed vision all the nascar big brakes have are the crossdrilled ones. They went through all the different types of calipers from 4 piston to 6 piston, all using cross-drilled rotors. What would they use these unless they worked better?

 

http://www.teamscr.com/rotors.htm

Take a look at this information about rotors.

 

How do you suppose that upsizing rotors is pointless? If you go with larger rotors, there's more material to dissipate heat. cross drilled will NOT help vent heat. It will actually be hotter to have xdrilled rotors of same dimension and thickness as one that isn't xdrilled. It will also stop less well because it doesn't have as much surface area for the pads to grab on to.

Trust me... xdrilling and slotting your oem rotors is the worse thing you can do to your braking performance on the track. Just because your friends do that, doesn't mean they're always right.
You also contradicted yourself by saying that "but cross drilling and slotting oem ones works well" earlier, but after saying what I just quoted.

 

you will get the same stopping distance with all of those. with an aftermarket brake upgrade you will stop faster with the same line pressure, if thats what youre going on.

 

You are obviously to stupid to understand my analogy, I said nothing about the weight of the rotors now did I?

 

HAHA, Yeap, also replaces the pads every session on the track.. Can you afford 300$ each time you go on the track? Slotted eats pads up, but they do keep the pads clean, which is fine for racing.. They also replace the rotors every session which is several hundred dollars as well.. If you want brakes like roger foo, get them, but don't bitch to me when you can't afford them, but then again, you won't push them to the limits anyways so they probably will last a long time..

 

Wanna try to keep up, anytime....

 

Well... you won't see any slotted rotors on East Coast Honda Challenge racecars, and they're the closest relatives you have in terms of performance vs. budget. Maybe all of the fastest Honda-saddled roadracers who can't afford new rotors/pads every race are wrong.