rabjohns

http://www.jzmachtech.com/shells/tun...r=2004&id=7505

I am thinking of replacing my worn GT3 front rotors with the JZ Alcons. Do you think that there would there be any advantage to getting them frozen before installation?

http://www.frozenrotors.com/

rabjohns

Sorry I fixed the links. They work now.

DanH

I didn't bother, but up you. Never heard any convincing argument that freezing helps. I know a lot of people tried it with the OEM disks and it didn't make enough difference to last an extra trackday. Maybe the alcons which last 15 days + (and counting) would get you an extra day?

jrgordonsenior

I frooze my front cup car rotors last year and they're still good after 12 race weekends or more. That's twice as long as my first set.....

rabjohns

Thanks but now I am really confused

Can anybody be the tiebreaker?

Nordschleife

How??????

R+C

jrgordonsenior

There's no denying they have lasted significantly longer than non-cyro'd stock rotors. One possible reason may be that I make a concerted effort to cool them down now after I come in. I pretty much always bring them in smoking so my help can take hot temps, but now I try to find a open section of road/paddock where I can cool them down for a minute or two before parking it. Perhaps this signifcantly helps rotor life too...

rabjohns

Thanks JR, good advice and great input. Now I just need to find some "help"

Cheers

David

jrgordonsenior

I hired a young apprentise from my mechanic's shop. These young guys love the work and the extra cash. Several friends have done the same thing with help from their shops and have been happy with the arrangement....

DanH

Glad to hear it, but your experience is the opposite of everyone else I know! The fact you are now cooling your brakes before coming in may be the deciding factor?

jrgordonsenior

Dan that certainly is a contributing factor but I can't always get them cool. I have to believe the cryo treatment has a significantly benefical affect. My friends who race GT3 Cups in IMSA also believe in the treatment. We use a facility somewhere in South, though I don't know if that's a factor or not....

DanH

Well to be fair, cup cars are quite a lot lighter so maybe the difference is less marginal in that application?

zoomzoom

My JZ Alcons have lasted over 20 trackdays, and they're only marginally worn (using Pagid RS29 pads). I believe the steel is already specially treated by Alcon - although it would be worth giving Steve a call as he designed them to spec with Alcon. Brilliant discs - best on the market imho.

PaulRothwell

After the PCCBs on my GT2 destroyed themselves at 14,000miles and one trackday...according to Porsche I overused used them !!...I fitted the series 2 Alcons from JZMachtech on all 4 corners....brilliant!! Just cool after hot laps..seem to be lasting very very well.

Ed Newman

Brembo 2pc GT3R rotors from CDOC now have 8 days on them and they look great. I expect I may get 15 or more days on them. I was only getting 4-5 days on my cup rotors.