cross drilled rotors - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 16 (permalink) Old 11-06-2003, 01:56 PM Thread Starter
 
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cross drilled rotors

Oh here is my question, I heard from a very reliable source that drilled rotors are crap, that they are for perfomance yes, but when they are used by professional racers they actually change the rotors after/during each race. And that yes the do help enhance braking but, the process of drilling them will degrade their strength and cause them to crack over short periods of time. So I was wondering if anyone knew where i can get some slotted rotors for the 2nd gen intrepid.
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post #2 of 16 (permalink) Old 11-06-2003, 02:14 PM
 
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I know I've read several threads here about this... Gotta do a search and find them... I think iRotors.com is the site... Also, I just saw a show on SPEED channel where they recommended drilled and slotted rotors...
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post #3 of 16 (permalink) Old 11-06-2003, 02:23 PM
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iRotors gives you the option of just slotted.

I've had my cross drilled and slotted rotors for a while now. No remote signs of cracking.

Its a trade off though. Cross drilled rotors are less likely to warp then oem, but are not as strong. Slotted will give you a lower pad life then oem, but will give you better braking.
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post #4 of 16 (permalink) Old 11-06-2003, 02:30 PM
 
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ide be careful with cross drilled. if that thing cracks and decides to basically "shatter" your up shit creek... ive seen them break apart on a friends truck tha the had them on, very bad...
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post #5 of 16 (permalink) Old 11-06-2003, 02:36 PM
 
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Several people on this site have them installed on their cars. I don't think anyone has had problems with them... In fact, I've only seem positive comments about them...

DokuHitokiri - I think it depends on who makes them... Maybe your friend got some cheaply made rotors?
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post #6 of 16 (permalink) Old 11-06-2003, 02:39 PM
 
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buying rotors and drilling them yourself is a very bad idea and will cause cracking. that's probably the failures people keep hearing about
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post #7 of 16 (permalink) Old 11-06-2003, 02:45 PM
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I bought cross drilled rotors for my Intrepid no cracking but they did warp after 15K miles... Randy have your rotors warped? I was thinking maybe it had something to do with the Hawk Street pads that I used... a lot of brake dust which means a soft material which usually means more heat... because after the cross drilled I went with UBP rotors and Hawk pads and they warped again in 10K miles.
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post #8 of 16 (permalink) Old 11-06-2003, 02:47 PM
 
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Any rotor that has been drilled and not properly heat treated after the drilling process runs the risk of cracking. The absolute best cross "drilled" rotor is one that was forged with the holes already in it. However, most cross drilled rotors you'll find started out as solid blanks and were later drilled. A properly heat treated rotor after drilling should be very reliable, though physically it can never be as strong as a solid rotor...
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post #9 of 16 (permalink) Old 11-06-2003, 02:50 PM
 
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Quote:
Originally posted by alderran
I bought cross drilled rotors for my Intrepid no cracking but they did warp after 15K miles... Randy have your rotors warped? I was thinking maybe it had something to do with the Hawk Street pads that I used... a lot of brake dust which means a soft material which usually means more heat... because after the cross drilled I went with UBP rotors and Hawk pads and they warped again in 10K miles.
no, my rotors haven't warped yet, but my intrepid probably isn't a good one to follow, since i don't think i've even put 1,000 miles on it since i put on the rotors. it's sitting in my driveway with a dead battery, and has only moved once or twice in the last 6 months......
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post #10 of 16 (permalink) Old 11-06-2003, 02:55 PM
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I have had my iRotors for 4 months now. Zero problems.
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post #11 of 16 (permalink) Old 11-06-2003, 03:19 PM
 
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hmm may have been crappy brand, not sure =\ was awhile back tho.. just remember him infront of me and he starts breaking, and all you see is metal flying atcha from his front left wheel well... and him having to swirve off the road into the ditch to not T-Bone a car.. was scarry heh.
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post #12 of 16 (permalink) Old 11-07-2003, 11:58 AM
 
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You run the same risks if you go with a solid or a x-drilled/slotted rotor. Buy a good quality rotor to minimize the risks.

As mentioned above, there are trade offs between solid and x-drilled/slotted rotors (ie pad life, braking performance, etc). A poorly manufactured x-drilled/slotted rotor can suffer from cracks around the holes, but a poorly manufactured solid rotor can also suffer from cracks.

A x-drilled/slotted rotor may be slightly at more risk to cracking, but because solid rotors aren't as good as x-drilled/slotted rotors at heat disipation, solid rotors are slightly at more risk to develope heat spots, which can induce cracking.

So, if you want the added performance and don't mind paying a little bit more and don't mind the reduced pad life, go with a x-drilled/slotted rotor.

The aftermarket friction guru has spoken!
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post #13 of 16 (permalink) Old 11-07-2003, 12:07 PM
 
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I've had my iRotors cross-drilled and slotted rotors with semi-metallic pads on all four wheels for about 3k miles now. No problems and lovin' them!
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post #14 of 16 (permalink) Old 11-07-2003, 08:47 PM
 
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Quote:
Originally posted by 2001RT
I've had my iRotors cross-drilled and slotted rotors with semi-metallic pads on all four wheels for about 3k miles now. No problems and lovin' them!
A most excellent combo!!
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post #15 of 16 (permalink) Old 11-08-2003, 11:01 AM
 
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Warlord: What are your thoughts on the ceramic pads now available. Anything that reduces pad dust is appealing to me....as long as braking performance isn't affected...

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