Drilled Slotted Rotors

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Drilled Slotted Rotors

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Drilled Slotted Rotors - 8/31/2007 7:44:49 PM

JeepeaterH3

Posts: 314
Joined: 1/12/2007
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anyone upgrade rotors? is it something you suggest?

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RE: Drilled Slotted Rotors - 8/31/2007 7:46:43 PM

Heysdad

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Joined: 7/28/2007
From: North Texas
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Do you know of someone that sells drilled rotors for H3's?

(in reply to JeepeaterH3)

Post #: 2

RE: Drilled Slotted Rotors - 8/31/2007 8:02:54 PM

JeepeaterH3

Posts: 314
Joined: 1/12/2007
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search ebay. hummer h3

i sorted from expensive to cheap. 279$ free shipping!

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Post #: 3

RE: Drilled Slotted Rotors - 8/31/2007 8:19:21 PM

saywhat

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Joined: 8/14/2007
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If It was a Sports car or a SRT8 Jeep I would say go for it, Not on a Hummer!

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Post #: 4

RE: Drilled Slotted Rotors - 8/31/2007 9:19:39 PM

GarrettMoore

Posts: 169
Joined: 4/25/2007
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I've seen a guy on ebay selling pads, and drilled/slotted rotors for the H3, with incredible feedback, and people noting they were repeat customers.

If it wasn't for that, I would say stay away from anything drilled. For the most part, companies make standard width rotors, then drill them, which causes them to be very weak, and crack.

You may say that you have seen drilled rotors come stock on certain cars, exotics mainly, but this is becaue they increase the width of the rotor, adding the neccessary strength for drilling.

(in reply to saywhat)

Post #: 5

RE: Drilled Slotted Rotors - 9/1/2007 8:19:05 AM

JeepeaterH3

Posts: 314
Joined: 1/12/2007
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so bottom line.. dont do it?

i offroad alot, i dont need cracked rotors. lol

so bad idea huh?

(in reply to GarrettMoore)

Post #: 6

RE: Drilled Slotted Rotors - 9/1/2007 9:05:04 AM

671H3

Posts: 640
Joined: 7/26/2007
From: Guam U.S.A
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I say don't get it. It only looks good IMO.

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Post #: 7

RE: Drilled Slotted Rotors - 9/1/2007 9:26:39 AM

D VADER

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Joined: 5/21/2007
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Pads and rotors have come a long way. Drilled/slotter rotors are for looks only unless you increase the size of the rotor.

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Post #: 8

RE: Drilled Slotted Rotors - 9/1/2007 11:23:11 AM

CCMDoc

Posts: 219
Joined: 12/5/2006
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DVader is 100% correct - drilled rotors are for looks only - loss of metal = loss of surface area and decreased heat transfer = loss of stopping power.
Slotted rotors - depends upon the location, number and direction of slots. For frequent stops from high speed (180mph- - >40mph) where gassing might cause pad float, properly slotted rotors allow gas to escape and more immediate friction to be applied. In any other situation, slots =less surface area=less stopping power. Unless with the change in rotors comes increased diameter and that increase equals or exceeds the loss of surface area from the slots or holes compared to stock, it is always a losing proposition.

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(in reply to D VADER)

Post #: 9

RE: Drilled Slotted Rotors - 9/1/2007 9:54:16 PM

Hawaiian Hummah

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not to mention that it will eat your pads two or three times faster

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Post #: 10

RE: Drilled Slotted Rotors - 9/1/2007 10:25:40 PM

671H3

Posts: 640
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From: Guam U.S.A
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It will also warp and start to vibrate when you press your brakes.

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Post #: 11

RE: Drilled Slotted Rotors - 9/2/2007 6:27:15 AM

D VADER

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Joined: 5/21/2007
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Brake pad technology today no longer produce the gases of the past.
Here's a sad pic of cheap drilled rotors.

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Post #: 12

RE: Drilled Slotted Rotors - 9/2/2007 6:45:42 AM

Doc Olds

Posts: 3805
Joined: 7/11/2007
From: Boat Town USA (Michigan 48045)
Status: offline

Well you guys together almost got it. If you add together all the posts you are real close.

There are several companies make good drilled and slotted rotors for the H3. I agree with the consensus, you do not need them for the 3. The 3 is one of the few GM trucks to have adequate brakes right from the factory. GM has been criticised for being too conservative in brakes for years. If you want the drilled and slotted rotors to show thru your huge chrome rims, go for it. They will eat pads like crazy because the cross drill slotted surface INCREASES BRAKE FRICTION even though there is less total rotor surface contact with the pad. You need to run a hard pad, like titaniums, and they still will be chewed up pronto. Your front pad life is probably less than 20k. Yes they eat pads! The cross drill technique is to increase air surface contatct for heat dissapation and minimize gassing in extreme conditions. The slots are to clean/strip pad surface to increase friction. In wet braking it is hard to beat a slotted rotor. Since we are not racing road courses in the rain, I'll pass on this mod.