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#1
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Drilled or dimpled rotors?
I'm looking at replacing the rotors on our SVX and came across both drilled and dimpled. I don't really want slotted rotors but drilled or dimpled would be nice. Is one better than the other?
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1997 Boudreaux LSi 1994 SVX LSi(SOLD) Kool Blue air filter, 4500k HID's, airbox mod, Hella horns, WRX 6 disc stereo, Infinity Reference and Clarion Pro Audio speakers, Infinity basslink sub, ECUtune Stage 1v5, ECUtune TCU, Power mode mod, Mad muffler mod v1.3 |
#2
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Re: Drilled or dimpled rotors?
Yes, the dimpled are better because they will not crack when stressed. The drilled have a better chance of cracking, so I would go the dimple drilled if you have the choice.
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. Earl .... ... .... ><SVX(*> Subaru Ambassador [COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430 1992 Dark Teal LS-L ~184K (05/91) #0739 1992 Claret LS-L ~196K (05/91) #0831 1992 Pearl LS-L ~103K (06/91) #1680 1992 Pearl LS-L ~151K (06/91) #2229 1992 Dark Teal LS ~150K (07/91) #3098 (parts car) 1992 White LS-L ~139K (08/92) #6913 1993 25th AE ~98K (02/93) #164 1993 25th AE ~58K (02/93) #176 1993 25th AE ~107K (02/93) #215 1993 25th AE ~162K (02/93) #223 1994 Laguna Blue Pearl LSi ~124K (1/94) #2408 1994 Laguna Blue Pearl LSi ~144K (10/93) #1484 1994 Laguna Blue Pearl LSi ~68K (10/93) #1525 1994 Barcelona Red LSi ~46K (02/94) #2624 1994 Pearl LSi ~41K (12/93) #1961 1995 Bordeaux Pearl LSi ~70K (02/95) #855 1996 Polo Green LSi ~95K (03/96) #872 1997 Bordeaux Pearl LSi ~55K (08/96) #097 2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951 1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420 My Email | Old Locker | New Locker | Picture of 15 of the 19 |
#3
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Re: Drilled or dimpled rotors?
Drilled arguably disperse more heat, but the dimpled aren't nearly as prone to cracking. So, I suppose you'd get more life out of the dimpled ones...
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Jesus is the remedy 2015 Expedition EL Ecoboost Ebony Pearl '95 Subaru SVX LSi Home of the Bontrager Works 22mm rear sway bar!! |
#4
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Re: Drilled or dimpled rotors?
Both of the above statements are correct.
(I only use drilled in racing applications.) Slotted rotors also help in cooling, but you can get either or both. Tom
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www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#5
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Re: Drilled or dimpled rotors?
I've been using drilled/slotted rotors for 6 months, and I'm showing no cracks so far. I've been on the brakes pretty hard more than a few times too.
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-Nate '92 LS-L Pearlie |
#6
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Re: Drilled or dimpled rotors?
They will be for street use only. Do the drilled ones have problems with cracking under normal use or just when subjected to track use?
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1997 Boudreaux LSi 1994 SVX LSi(SOLD) Kool Blue air filter, 4500k HID's, airbox mod, Hella horns, WRX 6 disc stereo, Infinity Reference and Clarion Pro Audio speakers, Infinity basslink sub, ECUtune Stage 1v5, ECUtune TCU, Power mode mod, Mad muffler mod v1.3 |
#7
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Re: Drilled or dimpled rotors?
They can have problems cracking under normal use. I would use the dimple drilled instead of drilled. Slotted and the dimple drilled are the ones I have used on most of my cars and they are great.
__________________
. Earl .... ... .... ><SVX(*> Subaru Ambassador [COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430 1992 Dark Teal LS-L ~184K (05/91) #0739 1992 Claret LS-L ~196K (05/91) #0831 1992 Pearl LS-L ~103K (06/91) #1680 1992 Pearl LS-L ~151K (06/91) #2229 1992 Dark Teal LS ~150K (07/91) #3098 (parts car) 1992 White LS-L ~139K (08/92) #6913 1993 25th AE ~98K (02/93) #164 1993 25th AE ~58K (02/93) #176 1993 25th AE ~107K (02/93) #215 1993 25th AE ~162K (02/93) #223 1994 Laguna Blue Pearl LSi ~124K (1/94) #2408 1994 Laguna Blue Pearl LSi ~144K (10/93) #1484 1994 Laguna Blue Pearl LSi ~68K (10/93) #1525 1994 Barcelona Red LSi ~46K (02/94) #2624 1994 Pearl LSi ~41K (12/93) #1961 1995 Bordeaux Pearl LSi ~70K (02/95) #855 1996 Polo Green LSi ~95K (03/96) #872 1997 Bordeaux Pearl LSi ~55K (08/96) #097 2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951 1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420 My Email | Old Locker | New Locker | Picture of 15 of the 19 |
#8
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Re: Drilled or dimpled rotors?
I use drilled/slotted rotors on my SVX. After about 15 months, I can't find any cracks. It has never been used on the track and perhaps never will be, but brake upgrades are still very good ideas for the weekend rider even; as is the case in my car.
A good suggestion for a streetcar is dimpled rotors. There's a reason you are beginning to see them on OEM setups, it's because they work and are fairly trouble-free. Slotted rotors are great too, but you are going to need to consider pads as well when doing something like that. The slotted ones will definitely eat pads faster and make a bit more noise in daily driving. That is perhaps my only complaint about my rotors; the scrape a little more than I'd like in traffic, and it sometimes will make the pad squeal. (How embarassing) But MAN they stop like a sonofagun!
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Jesus is the remedy 2015 Expedition EL Ecoboost Ebony Pearl '95 Subaru SVX LSi Home of the Bontrager Works 22mm rear sway bar!! Last edited by Nevin; 11-02-2008 at 04:01 PM. |
#9
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Re: Drilled or dimpled rotors?
That was my next question. How fast do they eat pads? It would seem like they would consume pads quicker because of the slots shaving the pads. That is why I was thinking of the drilled or dimpled only.
__________________
1997 Boudreaux LSi 1994 SVX LSi(SOLD) Kool Blue air filter, 4500k HID's, airbox mod, Hella horns, WRX 6 disc stereo, Infinity Reference and Clarion Pro Audio speakers, Infinity basslink sub, ECUtune Stage 1v5, ECUtune TCU, Power mode mod, Mad muffler mod v1.3 |
#10
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Re: Drilled or dimpled rotors?
Well, they don't necessarily eat pads more, so long as you have the right kind of pad. I've always used ceramic pads with slotted rotors and have had good luck on every car I've used them on so far.
It also very much depends on your driving habits, what kind of traffic you're in, etc... You should be able to get the same life out of them as compared to an OEM pad/rotor combo, but it just depends how you drive. If you're worried, just get dimpled, they'll do the job just fine and will give you one less thing to worry about.
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Jesus is the remedy 2015 Expedition EL Ecoboost Ebony Pearl '95 Subaru SVX LSi Home of the Bontrager Works 22mm rear sway bar!! |
#11
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Re: Drilled or dimpled rotors?
Do ceramic pads take a few stops to warm up? We have a steep driveway and I want the brakes to work first thing as we leave. I've heard that some pads are so hard that they don't brake very well until warmed up.
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1997 Boudreaux LSi 1994 SVX LSi(SOLD) Kool Blue air filter, 4500k HID's, airbox mod, Hella horns, WRX 6 disc stereo, Infinity Reference and Clarion Pro Audio speakers, Infinity basslink sub, ECUtune Stage 1v5, ECUtune TCU, Power mode mod, Mad muffler mod v1.3 |
#12
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Re: Drilled or dimpled rotors?
Quote:
I have ceramic pads on all of our SVXi, and they all stop very well. Especially the Claret with the 13" front rotors!TEEHEE!!
__________________
www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#13
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Re: Drilled or dimpled rotors?
Show off!
__________________
. Earl .... ... .... ><SVX(*> Subaru Ambassador [COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430 1992 Dark Teal LS-L ~184K (05/91) #0739 1992 Claret LS-L ~196K (05/91) #0831 1992 Pearl LS-L ~103K (06/91) #1680 1992 Pearl LS-L ~151K (06/91) #2229 1992 Dark Teal LS ~150K (07/91) #3098 (parts car) 1992 White LS-L ~139K (08/92) #6913 1993 25th AE ~98K (02/93) #164 1993 25th AE ~58K (02/93) #176 1993 25th AE ~107K (02/93) #215 1993 25th AE ~162K (02/93) #223 1994 Laguna Blue Pearl LSi ~124K (1/94) #2408 1994 Laguna Blue Pearl LSi ~144K (10/93) #1484 1994 Laguna Blue Pearl LSi ~68K (10/93) #1525 1994 Barcelona Red LSi ~46K (02/94) #2624 1994 Pearl LSi ~41K (12/93) #1961 1995 Bordeaux Pearl LSi ~70K (02/95) #855 1996 Polo Green LSi ~95K (03/96) #872 1997 Bordeaux Pearl LSi ~55K (08/96) #097 2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951 1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420 My Email | Old Locker | New Locker | Picture of 15 of the 19 |
#14
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Re: Drilled or dimpled rotors?
Yeah, ceramic pads are not ones you need to let warm up before being able to use properly. They work well right from the get-go.
__________________
Jesus is the remedy 2015 Expedition EL Ecoboost Ebony Pearl '95 Subaru SVX LSi Home of the Bontrager Works 22mm rear sway bar!! |
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