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Old 05-10-2000, 12:46 PM   #1
Patrick Olsen at work
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Question New brake rotor suggestions?

I've developed a pretty nasty pulsing during braking, so I think my rotors are pretty warped. I've already had them turned once, and I don't remember if the guy said they had one more turning in them, or if that was it. So, I need to figure that out, but I think I'm going to need some new rotors.

Are there any aftermarket alternatives that are worth looking into? I vaguely recall reading that the '91-94 (?) turbo rear discs were the same size as ours but are vented - is that correct? Will the turbo model rear discs work as a direct fit with our calipers and bolt pattern?

I'm not interested in slotting or cross-drilling - I've heard too many times that they just aren't worthwhile for the street. However, if there are other rotors that are stronger/better quality/whatever, I might go for them rather than Subaru OEM.

Thanks for the help.

Pat Olsen
'99 Legacy 2.5GT 5 speed sedan
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Old 05-10-2000, 09:44 PM   #2
Pilot
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Order a set of stock rotors and before you put them on the car send them to diversified Cryogenics and have them cryo treated and gas slotted. Also get a good set of pads. After the cryo treatment you should have no problems with brake rotor warping and you will get incresed rotor life.
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Old 05-10-2000, 10:00 PM   #3
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Cool

BAER, BREMBO, WILWORD, AEM..those are the Big Names....ANY size you want and they will custom drill the Scooby Bolt Pattern.
Expect to spend about $2000 for Rotors(Your choice- 4 pot, 6pot and there are even some 8 and 10 potters out there. But unless your racing GTP..the 6 8 or 10 potters are a little extreme...Most make rotors that fit our cars ...
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Old 05-11-2000, 01:36 AM   #4
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I don't think there's anything wrong with slotting as long as it's done right. Sure it will chew up pads faster, but you can't put a price on the ability to stop quickly.

Under the SEMA! link there was a tidbit at the end about an Australian company which was setting up to distribute aftermarket rotors in the USA. Costs were pretty reasonable as I remember. If you find out more about them please let us know.
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Old 05-11-2000, 01:57 AM   #5
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Patrick I have a set of Bradi rotors sitting around if you want to buy them as I would need to get some RS brake calipers to use them on my 2.2L. I will sell them for $100+shipping(Negotiable).
Rich
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Old 05-11-2000, 07:50 AM   #6
ColinL
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You can send your stock rotors to any number of mfg's and they will make replacements. $2000 for rotors? I'm sure you could spend that much, but you definitely don't need to on an RS or Legacy GT.

PS scooby south, you overlooked AP Racing and Alcon to name a few. And it's WilWOOD.
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Old 05-11-2000, 08:11 AM   #7
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Yeah, $2000 for rotors does seem a BIT excessive. I'll be spending less than that for a full 4 wheel disc setup from Baer for my Mustang (13" front, 12" rear rotors, PBR calipers all around).

Anybody know how much the cryogenically treated rotor thing costs?

Pat Olsen
'99 Legacy 2.5GT 5 speed sedan
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Old 05-11-2000, 09:17 AM   #8
Joe Hogan
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As far as the Cyro-treated rotors go you might try Carbotech out of Ft. Lauderdale, FL.
All my dealings with them have been positive and they will make pads for the Subaru on demand from any of their pad materials.

BTW they rivet their pads ... some folks don't like this. But the shear strength appears to be satisfactory.

Joe Hogan
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Old 05-11-2000, 09:46 AM   #9
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ColinL:..:P..Sorry about the mispelling...and your right I did forget to name those other manufactors..Appreciate the feedback..

I meant $2000 for the whole Brake system...My Bad...Rotors, Calipers, Lines and Pads...
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Old 05-11-2000, 10:51 AM   #10
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The best/easiest soloution is to call up Diversified Cryogenics, and no, don't send them rotors, ask for them to send you the "Brembo" rotors for your RS (they stock a lot of Brembo stuff). And have them treated, and also get a set of good pads. Everything else is not worth the money/benefit.

2k for rotors, man you don't know what you are talking about !
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Old 05-11-2000, 07:30 PM   #11
P.K. Motorsports
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OK, so has anyone actually gone the Diversified Cryo / slotted and cryo'd Brembo rotor route? What difference in stopping power was noted? How much did the whole thing end up costing? Where is DC located?
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Old 05-11-2000, 09:14 PM   #12
Dobes
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You want brakes, I got your brakes right here.



Porsche GT2 brakes on an Impreza!

The link for the site is here: http://www.movit.de/htm/subaru.htm


JD

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Old 05-11-2000, 10:32 PM   #13
Scooby South
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Holy SMOKES....AWESOME STUFF....how much to convert the Scooby...and does the bolt pattern match up?????
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Old 05-11-2000, 10:50 PM   #14
Patrick Olsen
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Scooby South - just go check out Movit's website, it's absolutely amazing. They do conversions for a variety of cars. When I went to VIR in March there was an M3 with the Porsche brakes on it - tres sweet. Stainless steel rotors (rather than cast iron), cast in vent holes (rather than cross-drilled), monster calipers - quite the setup, and not *terribly* expensive. Here's another example of their work: http://www.voicenet.com/~vinman/heinz.htm - (for you domestic haters, be forewarned, it's an Impala SS).

Patr - do you have a way to contact Diversified? I'm interested in finding out more about the Brembo rotors. I already have Mintex 1155 pads front and rear, so I think I'm in pretty good shape there.

Thanks for the help, comrades.

Pat Olsen
'99 Legacy 2.5GT 5 speed sedan

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Old 05-13-2000, 08:43 PM   #15
patr
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www.frozenrotors.com

and yes, I use em with Porterfirld RS4 pads
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Old 05-14-2000, 12:41 AM   #16
Patrick Olsen
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Thanks for the link, patr. I'll give them a ring next week and see what they've got for our Subies.

Pat Olsen
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Old 05-15-2000, 04:47 PM   #17
Patrick Olsen
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I talked to Mark at Diversified Cryogenics today. He had to make a call to find out about Subie rotors, then called me back with the info. He said he could do "Japanese replacement" rotors, cryogenically treated, for $95 apiece. Whaddaya think? If I do go this route, I doubt I'll bother with the rear, but my fronts are clearly warped right now so I need new front rotors.

Pat Olsen
'99 Legacy 2.5GT 5 speed sedan
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Old 05-15-2000, 07:04 PM   #18
Tarmac RS
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dobes, those are definitely bid d*ck brakes

The Porsche 'big reds' are specially made for Porsche and differ slightly to the standard Brembo calipers. Porsche has opted to have Brembo use 12mm bolts holding the caliper halves together rather than the regular Brembos which use 8mm bolts.

This is definitely worthwhile as proven to me a few weeks ago at the track event I participated in. There was an M3 with upgraded Brembo brakes on it and the driver overheated and warped the calipers. They had to file the replacement pads to make them fit back in the caliper.
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Old 05-15-2000, 07:05 PM   #19
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Also try www.kvrperformance.com. They have rotors for the Sube in both slotted and drilled, treated also...
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