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Discussion Starter · #1 ·
So yes, I google searched here....<br>Wifeys VR needs pads & rotors all around. Im wondering if you all can help with the following questions:<p>Do slotted rotors wear out pads any faster than blanks? Contemplating DRT powder coated/slotted vs. OEM or IPD rotors. Aslo, are the DRTs slotted with a ball end mill for radiused slots?<p>Any truth that slotted rotors will INCREASE stopping distance (claim is based on less surface area due to whats lost in the slot.... seems like BS to me)<p>Any other performance differences with slotted on street use? Better stopping in the wet? Or is it purely cosmetic for street use?<p>Are slotted rotors any louder? If so, significantly?<p>Any bad experiences with IPD private label rotors?<p>Any thoughts on pads other than OEM? Car isnt tracked, obviously brake dust is a concern; the ronals on her car are a pain to clean compared to the Pegs.<p>Any other places to shop or things to consider? And of course, Ill be replacing the parking brake & hardware at the same time...just in case!<p>Thanks in advance(d) for all helpful comments!! <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <BR><BR>
<i>Modified by rgrove at 9:25 PM 8-18-2009</i>
 

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I have drilled / slotted rotors with oem pads, Definitely better braking with the rotors done. Tried other pads with them, just wound up going back to oem and happy!
 

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Discussion Starter · #3 ·
Re: (crimnlmnded)

Any thoughts on pad life?
 

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Re: Thoughts/experiences on brakes? Time for new ones! (rgrove)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>rgrove</b> »</i></TD></TR><TR><TD CLASS="quote"><br>Any truth that slotted rotors will INCREASE stopping distance (claim is based on less surface area due to whats lost in the slot.... seems like BS to me)<p>Any other performance differences with slotted on street use? Better stopping in the wet? Or is it purely cosmetic for street use?</TD></TR></TABLE><p>That claim is BS as you suspect. However I wouldn't expect slotted to perform any better for non-track use. You probably will wear your pads a bit quicker.<p>Slotted rotors probably will reduce water buildup on the rotors in heavy rainstorms, but I've never noticed that happen with the stock rotors on my R (though it did happen a few times on my old T5).
 

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Re: Thoughts/experiences on brakes? Time for new ones! (Warpedcow)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Warpedcow</b> »</i></TD></TR><TR><TD CLASS="quote"><p>Slotted rotors probably will reduce water buildup on the rotors in heavy rainstorms, but I've never noticed that happen with the stock rotors on my R (though it did happen a few times on my old T5).</TD></TR></TABLE><p>It happens pretty often on my R. Slush during winter season is the worst. <br>Did anyone else have experience with slotted rotors and can confirm this? <br>Sorry for hijacking the tread.
 

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I went with Axxis Ultimates for the front however Axxis doesn't make a rear pad for the R's according to Dave Z...Ferodo DS2500's for the rear. I didn't need to to rotors but other than the bling factor offered by slotted rotors you will be well served with the stock ones.
 

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The Hawk HPS pads were lower dust and about the same bite as OEM. The Ferodo DS2500/DS3500 are INCREDIBLE pads, they are a hair grabby but fade resistance is top notch. They can be noisy, but if you dont mind cleaning and reapplying disk brake quiet every oil change its a non-issue. I think they are no louder than OEM pads.They do however make your rotor lifetime a bit short.
 

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Re: Thoughts/experiences on brakes? Time for new ones! (rgrove)

Using Posi-Quiet semi-metallic pads from Zeckhausen Racing<br>Reasonable cost<br>Low Dust<br>Good Performance
 

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Discussion Starter · #9 ·
Re: Thoughts/experiences on brakes? Time for new ones! (Denis)

Anybody have experience with how much slotted rotors will shorten pad life, if at all?<p>THANKS to everyone who has replied so far!
 

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Re: Thoughts/experiences on brakes? Time for new ones! (rgrove)

buy pads here <A HREF="http://www.rockauto.com/catalog/raframecatalog.php" TARGET="_blank">http://www.rockauto.com/catalog/raframecatalog.php</A><p>Cadillac CTS-V pads fit just right <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <br>the PGD pads
 

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Re: Thoughts/experiences on brakes? Time for new ones! (rgrove)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>rgrove</b> »</i></TD></TR><TR><TD CLASS="quote">Anybody have experience with how much slotted rotors will shorten pad life, if at all?<p>THANKS to everyone who has replied so far!</TD></TR></TABLE><p>I don't think the slotted rotors will shorten pad life...the Stoptechs on my M3 are slotted and they have held up to severe track duty just fine. I use Cobalt Friction track pads which are not for the meek...but once they heat proprly they stop like no others. Those pads will eat any rotor over time of course.
 

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Discussion Starter · #12 ·
Re: Thoughts/experiences on brakes? Time for new ones! (Pete'S60R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Pete’S60R</b> »</i></TD></TR><TR><TD CLASS="quote">buy pads here <A HREF="http://www.rockauto.com/catalog/raframecatalog.php" TARGET="_blank">http://www.rockauto.com/catalog/raframecatalog.php</A><p>Cadillac CTS-V pads fit just right <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <br>the PGD pads</TD></TR></TABLE><p>Thanks! I forgot about Rock Auto... they hav ebeen good in the past.<br>However, which CTS-V pads are a direct fit? What year? Front & rear? Same for both? Any brand/compound recommendation of the CTSv options? Im confused!
 

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Re: (ollie)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>ollie</b> »</i></TD></TR><TR><TD CLASS="quote">I went with Axxis Ultimates for the front however Axxis doesn't make a rear pad for the R's according to Dave Z...Ferodo DS2500's for the rear. I didn't need to to rotors but other than the bling factor offered by slotted rotors you will be well served with the stock ones.</TD></TR></TABLE><p>You have a street pad on the front and a semi-race pad on the back. Methinks your brake balance is going to be a bit screwy, as their friction coefficients are probably quite different.
 

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Re: (Warpedcow)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Warpedcow</b> »</i></TD></TR><TR><TD CLASS="quote"><p>You have a street pad on the front and a semi-race pad on the back. Methinks your brake balance is going to be a bit screwy, as their friction coefficients are probably quite different.</TD></TR></TABLE><p>Working very well so far...the DS2500 is indeed the Clubrace pad and has a friction level of 0.50 up to 1,000 degrees F...the Ultimates I've used as a wet weather track pad for many years as well as an all around street pad. It is specified as "fade resistent" up to 932F. I don't have a coefficient for the Ultimates but this set up works well for me. As with any pads you just have to make sure they are bed in properly.<p>As always, your mileage may vary.<p>EDIT: I would have used Ultimates front and rear but they don't make one for the R's rear caliper that Dave Z could find so I took the DS2500 on his advice. They are very knowledgeable when it comes to brakes obviously.
 

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Re: Thoughts/experiences on brakes? Time for new ones! (rgrove)

i clicked under 2005 cts-v brake pads> then they are they raybestos pads half way down the page .
 

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Re: (ollie)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>ollie</b> »</i></TD></TR><TR><TD CLASS="quote"><p>Working very well so far...the DS2500 is indeed the Clubrace pad and has a friction level of 0.50 up to 1,000 degrees F...the Ultimates I've used as a wet weather track pad for many years as well as an all around street pad. It is specified as "fade resistent" up to 932F. I don't have a coefficient for the Ultimates but this set up works well for me. As with any pads you just have to make sure they are bed in properly.<p>As always, your mileage may vary.<p>EDIT: I would have used Ultimates front and rear but they don't make one for the R's rear caliper that Dave Z could find so I took the DS2500 on his advice. They are very knowledgeable when it comes to brakes obviously.</TD></TR></TABLE><p>Dave Z told me the Ultimates are NOT for track use. My guess is they fall off fast above MOT, whereas the DS2500s fall off slowly.<p>If you're not tracking, you'll probably be just fine, I'm assuming Dave Z has figured out that their sub-MOT friction levels are close enough.
 

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Re: (Warpedcow)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Warpedcow</b> »</i></TD></TR><TR><TD CLASS="quote"><p>Dave Z told me the Ultimates are NOT for track use. My guess is they fall off fast above MOT, whereas the DS2500s fall off slowly.<p>If you're not tracking, you'll probably be just fine, I'm assuming Dave Z has figured out that their sub-MOT friction levels are close enough.</TD></TR></TABLE><p>Really depends on the track...I'm up in the Pacific Northwest so we have a lot of wet track days. The Ultimates are fine for those conditions with street / rain tires but not for r comps and hot temps. I have run the Ultimates in the rear of the M3 with stock calipers / rotors and the Cobalt Friction Spec VR's in my front Stoptechs and it works great....back on point though, the chance the R sees track time is near nill so the Ultimates up front and the DS2500's in the rear has served me well to to date. I'm farily easy on brakes when I track the M3 as it is easy to carry speed with that car...so keeping on top of it and not cooking the brakes is always on my mind.
 

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Re: (crimnlmnded)

speaking from experience with stoptech slotted rotors on my audi A6, i would avoid them - i can't wait till they need replacing so i can use oem rotors again. for around town use, braking is fairly normal, but once i'm braking from higher speeds, the whole car shudders, especially if you suddenly have to slow down on the highway it feels as if you're going over a rumble strip and violently shakes the car. the brake package i installed was the stoptech upgrade kit with slotted rotors, axxiss deluxe pads & s.s. lines. stoptech said there could be a friction layer on the rotor which i could try and sand off and that could help, but haven't given that a try yet.<p>when i had to replace the pads on my wife's s60R i believe i used axxiss deluxe for the fronts and metal masters for the rears - as recommended by Stoptech - i'd have to say i'm pretty happy with that combo, especially with the major reduction in dust
 
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