Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

rotors cross drill vs. rotors cross drill and slotted...

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Old Jul 12, 2004 | 06:16 PM
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Default rotors cross drill vs. rotors cross drill and slotted...

how long will the brake pads last for each? or how often you have to change it?
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Old Jul 12, 2004 | 06:33 PM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (hbLuvR yO!)

unless you are track racing, just stick with brembo blanks. Those rotors will cause uneven pad wear in some cases, but if you insist on being a ricer then go ahead and get them for your street car.
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Old Jul 12, 2004 | 06:48 PM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (Legendaryyaj)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Legendaryyaj &raquo;</TD></TR><TR><TD CLASS="quote">unless you are track racing, just stick with brembo blanks. Those rotors will cause uneven pad wear in some cases, but if you insist on being a ricer then go ahead and get them for your street car.</TD></TR></TABLE>

What he said
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Old Jul 12, 2004 | 08:47 PM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (D21X)

I dont no too much about brakes but i just no that drilled and slotted are deffinitely better for performance, but since it's slotted it wont last as long, but if i were to choose between drilled, slotted, or both, obviously i'd do both
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Old Jul 12, 2004 | 10:18 PM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (livelifefast)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by livelifefast &raquo;</TD></TR><TR><TD CLASS="quote">I dont no too much about brakes but i just no that drilled and slotted are deffinitely better for performance, but since it's slotted it wont last as long, but if i were to choose between drilled, slotted, or both, obviously i'd do both</TD></TR></TABLE>

drilled and slotted are better for performance eh? care to explain how?
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Old Jul 13, 2004 | 12:36 AM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (azian21485)

they're not better for performance, slotted are, but slotted heat up too quick, so they wont last long. Drilled rotors provide for cooling of the breaks, but they dont have the same performance capabilities as slotted. I would say pick drilled and slotted because it's the best of both worlds, but then again, like i said, i dont no too much about brakes, just a few basics
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Old Jul 13, 2004 | 06:29 AM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (livelifefast)

There are a number of threads that discuss pros and cons about slotted, drilled, slotted/drilled. Some discuss cracked drilled rotors, slotted get hotter, etc. I researched as many threads as I could to help decide on my rotors and pads. At one point I wanted to upgrade to AEM big brake kit. I finally decided to go with Brembo slotted rotors and AEM pads. I'm not concerned about pad life as the cost of pads is not that much. I chose the slotted rotors over plain rotors because I like the way they look and I can say "yep, them's Brembos"

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Old Jul 13, 2004 | 07:36 AM
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the more surface area your pad can grip the better the braking force...slots reduce this space, drilled holes reduce this space too...plus both of them worsen the reliability of the rotor. The only real reason to get them for a car that doesnt participate in endurance races is because "they look cool"....lame.
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Old Jul 13, 2004 | 08:12 AM
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i run a slotted/drilled rotor cause it provides a LOT of initial bite when hitting the brakes, plus on the street they shed water a lot faster when it is raining.
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Old Jul 13, 2004 | 09:13 AM
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Default Re: (v4lu3s)

the problem is you need to understand how the rotor works. the rotors use it's mass to dissipate heat to cool them down. when you drill or slot them you are taking away it's mass along with weakening a rotor that was not designed to be cut. so now when the rotor gets really hot it has a better chance of warping or cracking than a stock rotor.

also, i believes slotting was a design used to cure a problem with the brake pad material of like 20-30yrs ago which is not a problem today.

basically, slotted/drilling is all for the bling factor.
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Old Jul 13, 2004 | 10:40 AM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (phoenixitc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phoenixitc &raquo;</TD></TR><TR><TD CLASS="quote">There are a number of threads that discuss pros and cons about slotted, drilled, slotted/drilled. Some discuss cracked drilled rotors, slotted get hotter, etc. I researched as many threads as I could to help decide on my rotors and pads. At one point I wanted to upgrade to AEM big brake kit. I finally decided to go with Brembo slotted rotors and AEM pads. I'm not concerned about pad life as the cost of pads is not that much. I chose the slotted rotors over plain rotors because I like the way they look and I can say "yep, them's Brembos"

</TD></TR></TABLE>

I hope you got the copper tainted Xdrilled and slotted Brembos and not the ones off ebay. The ones off ebay are not Legit.
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Old Jul 13, 2004 | 11:56 AM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (hbLuvR yO!)

thx for info, this is for my brother's accord
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Old Jul 25, 2004 | 03:38 PM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (Legendaryyaj)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Legendaryyaj &raquo;</TD></TR><TR><TD CLASS="quote">unless you are track racing, just stick with brembo blanks. Those rotors will cause uneven pad wear in some cases</TD></TR></TABLE>

uneven pad wear is not caused by brake rotors. it is either caused by a seized piston or binding/unlubricated slide pins and hardware.
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Old Jul 25, 2004 | 11:35 PM
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Drilled rotors provide better cooling than standard rotors, but the benefit is not realized on the street because we don't continuously brake from high speeds.
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Old Jul 26, 2004 | 01:01 AM
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brembo blanks are really cheap, price wise...so u can afford more if they warp. otherwise i heard they were really good.
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Old Jul 26, 2004 | 01:07 AM
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Default Re: (wed3k)

https://honda-tech.com/zerothread?id=841593

^very interesting read

The thing is brembo blank is all you need, those drilled brembo cracks fairy easy.

alot of trackwhore in H-T uses brembo blank and even some NSX guy is running AUTOZONE blank(mainly because the free replacement warranty thing).

Get some good pad,DOT 4 Brake fluid and brembo blanks and call it a day
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Old Jul 26, 2004 | 04:48 AM
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Default Re: (iam7head)

there's absolutely no point in going drilled and slotted...yes they cool down quicker but remember they will also heat up much faster...therefor during a long highspeed braking what's that gonna do to you pads?

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Old Jul 26, 2004 | 06:54 AM
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Default Re: rotors cross drill vs. rotors cross drill and slotted... (Legendaryyaj)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Legendaryyaj &raquo;</TD></TR><TR><TD CLASS="quote">

I hope you got the copper tainted Xdrilled and slotted Brembos and not the ones off ebay. The ones off ebay are not Legit.</TD></TR></TABLE>

Got them from tirerack.com.
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Old Jul 26, 2004 | 06:57 AM
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Default Re: (Grodzman)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Grodzman &raquo;</TD></TR><TR><TD CLASS="quote">the more surface area your pad can grip the better the braking force...slots reduce this space, drilled holes reduce this space too...plus both of them worsen the reliability of the rotor. The only real reason to get them for a car that doesnt participate in endurance races is because "they look cool"....lame.</TD></TR></TABLE>

Lame is in the eye of the beholder... whatever
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Old Jul 27, 2004 | 08:57 AM
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Default Re: (phoenixitc)

so if drilled/slotted rotors are soooo bad, why do Porcshe's, Lamborghini, Ferrari, and whatever other exotic sports cars manufacturers put them on there cars. They have to do some good if these manufacturers put big *** Brembo, Wilwood or whatever brand of brakes on them.
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Old Jul 27, 2004 | 10:34 AM
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Default Re: (AVcTcEoCrd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AVcTcEoCrd &raquo;</TD></TR><TR><TD CLASS="quote">so if drilled/slotted rotors are soooo bad, why do Porcshe's, Lamborghini, Ferrari, and whatever other exotic sports cars manufacturers put them on there cars. They have to do some good if these manufacturers put big *** Brembo, Wilwood or whatever brand of brakes on them.</TD></TR></TABLE>

They arent bad for cars that require such stopping power. Putting this kind of stuff on a street car(like ours) is just dumb and wont do much good cuz our cars dont call for that kind of stopping power. We dont have 400+hp cars that need that kind of stopping power. Most of those cars that you listed are usually pushed hard and some are bought mainly for track purposes so they come already equipped with them. Plus magazines are gonng be testing every aspect of a car and one with weak brakes isnt gonna do.
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Old Jul 27, 2004 | 11:46 AM
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Default Re: (Legendaryyaj)

there is no difference whether we need to stop fast at 70 mph or a Porsche needs to stop at 150mph. It all gets used in the same way, Porsche brakes are bigger, thats all that is different. It all depends on what brake pads you use.u can get some Brembo or some AEM pads and they dont get as hot as some OEM ones. Yes, drilled/slotted rotors can warp and crack, but you need to use the right pads and make sure everything like the piston and caliper is in good working order. Everything happens for a reason.

It doesnt matter if an Accord has 145 hp or 500 hp. Power doesnt mean ****, if an Accord has to stop in a hurry, better safe than sorry. In any case, if any car has to hit the brakes hard it is goin to wear the pads down, no matter what brand or material they are. Drilled/Slotted rotors are an UPGRADE to the braking system. For the person who wants them, i'd do it, cuz for one, i have them on my car and i have not had a problem with them in about a year now. and ive had to go from 135 mph to 65 in a damn hurry and i got to 65 mph in a hurry and many other cases of having to "slam" on the brakes.
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Old Jul 29, 2004 | 12:50 AM
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Default Re: (AVcTcEoCrd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AVcTcEoCrd &raquo;</TD></TR><TR><TD CLASS="quote">so if drilled/slotted rotors are soooo bad, why do Porcshe's, Lamborghini, Ferrari, and whatever other exotic sports cars manufacturers put them on there cars. They have to do some good if these manufacturers put big *** Brembo, Wilwood or whatever brand of brakes on them.</TD></TR></TABLE>

porsche uses them because the holes are affective at allowing the water to escape when braking in the rain..it also allows them to save static weight..i believe the higher end porche's brakes weigh like 4 bags of salt or something..that's all..drilled rotors WILL NOT make a car stop faster than blanks(except in rain) given the rotor is the same size and same calipers and pads

it's simple physics, to stop a car you need friction, and to create friction you need a large surface area..drilled rotors take away the contact patch between the pad and rotor which reduces surface area thus reducing friction

drilled rotors will cool down faster because it has a larger overall surface area thanks to the drilled holes, air will be able to hit the rotor..however, because of the rotor's decreased mass, they will also heat up faster than blank rotors..so if you're trying to stop from 150-200 mph (which i doubt anyone here will be doing) the rotors will be heating up ALOT and if they heat up past the pad's temperature rating, the pads will begin to "fade" or "glaze" and you will lose alot of braking power

another downfall to drilled rotors is that by the name, the holes are drilled. this causes a loss in structural integraty and causes the rotors to be weaker..porsche and ferrari as well as other big name sports car companies have the holes casted during the production of the rotors so they are still as strong as blank ones
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Old Jul 29, 2004 | 02:16 AM
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Default Re: (AVcTcEoCrd)

Because their engineers don't know anything about cars and you know more...
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Old Aug 2, 2004 | 07:28 PM
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come on nick
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