Cryoed rotors, opinions??

[prsrcokr]

I've read some reviews but really without a similar vehicle they aren't much good. I was curious if others have used these and whether you feel they're worth the cost? Was braking during a course more consistent? I'd love a BBK but can't afford it with other necessary upgrades I'm finishing, I don't want to turn the rotors again, so I'm considering a replacement for now.

What about turning these type of rotors? Can the normal lathe be used or is there a different cutting medium for when this process has been used on the material?
Thanks,
Brian W

 

[cjsupra90]

IMO, they are well worth the money. It is a proven process that works on any wearable metal part. For example, on my old SCCA ITS RX-7 a set of front rotors would last about 3 or 4 races depending on the track that I was at and the conditions. With cryo'ed rotors they lasted the entire race season. It also work like I said on any metal part too. I know of guys that have used in with great sucess on engine parts alike. I am acturally thinking about spending the money and buying all of the equipment to do cryoing myself and for others as there is no place in my area that offers the service.....

To answer your question, the rotors can be turned just as you would any other brake rotor. No differance, but you pretty much wont have to. They are far less likely to warp, heat check and wear. Just for example, on my Supra with the BBK that I built myself which has been on there for about 3 years now has never had the rotors replaced, machined or anything and the pads have been changed a couple of times now.

 

[prsrcokr]

Wow, 3 sets of pads that fast? This is still the original set of rotors that were on the car when I bought it in 96' and 100k+ miles ago. I don't expect them to last as long doing auto-x now but 3-4 races is crazy. Was this used in endurance racing or standard ~60 min. events.

 

[cjsupra90]

the car was used in all sorts of events from 45min to a couple of 24hrs events, but mostly 45min events along with solo 1 events almost every weekend. also, most of the tracks that I would run on were high speed with very hard braking zones. one note is, sorry, I told you wrong, it was not my ITS RX-7 it was my E-Production RX-7 that would go throught brakes like crazy but the car was also significantly faster at the end of the same straight as the ITS car so there for is harder on the braked then the ITS car. the ITS car rotors would last almost the hole season...

What are you refering to with the "3 sets of pads that fast"? if its the supra, it is because they were a race compound and wear pretty quick when used on street being that they are most of the time not quite up to there intended operating tempurature. I am actually running a different pad now and so far they have been on the car for about 6months and only have about 1/4 the wear that the other pad would normaly have after 6months of use so should last like 10 times as long.

point of the hole thing was to show you the advanges of cryo'ed rotors. If you are either overly easy or do mostly highway driving that you dont use the brakes very much to where the last a very long time then no, its probably not worth the extra money, but if you do alot of stop & go and or are hard on the brakes and wear through them pretty quickly then its a good idea.

 

[bluemax]

A guy at work does cryo on a side business. He cryos all sorts of things. He says a cryo'd rotor will not wear as fast and has higher friction than a non-cryo'd rotor. He can cryo your rotors (or anything else) if you send them to him or he can make rotors, cryo them and send them to you. He can also kit the rotors with Porterfield pads as Porterfield is local here and he knows the owner. I forget the name of his business, but I can get his number if you want to call him.
He made a set for my wife's VW. They cost me about $650 total. The pads were expensive because they were custom made (they don't normally carry VW Passat Pads). The rotors cost me about 100 each.