fatbillybob

Cryogenic rotors are these marketing hype? Who has any real workd experience of these things?

Bill Gregory

When I installed 993 brakes on my 964, the first set of rotors were plain and slotted. After 3-4 track days they started cracking. My next set were cryogenically processed, and slotted, and I have over 10 days on them, and you can barely see cracks starting to form.

Sam Lin

Racers I've talked to all report 2-3x rotor life with cryo.

Sam

Eric in Chicago

Racer here, I dont think there is any difference. I ran a set of stock 993 rotors (OEM) and got about 7 events out of front rotors (944 S2) Swaped them for a set of Cryo treated rotors, 3 events and the cracks are pretty big. Will probaly make 7 events but I dont see them going much more. Pagid Blacks all the way around, changed pads with about 40% life left in them. I thought I would try them but dont really see the value add.

James Achard

Snake Oil for me('87 Carrera with Pagid Orange). Seems that folks have quite a broad range of experience with them. If you are currently happy with your rotor life, I wouldn't bother. If you are going through rotors fast, give it a shot. I believe the more important aspect to this issue is initial rotor quality.

Cheers, James

ngoldrich

I am not sure. My GT2 had them on it when I purchased the car. I then ran 14 races this year and just replaced the rotors & pads for the last event. But the stock ones may also last that long. I did replace them with Cryo since I had good luck. But there is no comparison here since I have not tried stock ones.

Norm

Manny Alban

I tried a set and they cracked quicker than the cheap Vertex rotors. Nice people to deal with though.

kary993

I have used cryo rotors for the past two years with good luck. I happen to have an extra set of factory rotors (non treated) that I am going to use this year. So I will have a good comparison this season. I'll post when I go through the rotors.

cd993

I have a 95 993 and have been searching high and low for slotted rotors for the stock caliper. Where did you get the slotted ones?

Eric in Chicago

Chris,
There are no such things as slotted 993 rotors. I have searched for months, and nobody makes them. There may be a custom 600.00 per rotor out there,but nothing for the club racer

911S3.6

After a 3.6L engine conversion on my 911S, one weekend at Heartland Park warped the rotors, boiled fluid and ate the pads-all stock. Replaced with diversified cryogenics slotted rotors, Hawk HT-10 and motul 600 fluid, and AJ USA brake cooling ducts. Have had no problems in 16+ track days.
Nick

sleder

OK, I will add my experience as well. This is almost as good as what is the best oil...I used Diversified Cryogen rotors. I have 12 days on them and they are SHOT. I use Performance Friction pads and I believe it is NOT worth the extra expense. I would rather buy the VCI spec rotor from Coleman that have all ready been stress treated and replace when I need to. That is MHO...

Benton

Is it out of the question to purchase regular rotors and have them cryo-ed? I know of a guy through the offroad community that would probably charge around $30 (maybe a bit more or even a bit less) to treat all of the rotors. Check out www.performancecryogenics.com (not affiliated, in fact I have never done business)

Bill Gregory

Yes, I've done that - source the rotors myself and then have them cryo treated.

NEAL WRIGHT

Racer here. They work. Have 2+ seasons on mine. Hardly any wear, no cracks and zero warping. I will never not have them on my track car