I'm no stranger to crogenically treated parts - as you'll see from my sig I had the Kia final drive cryogenically treated as an extra precaution. There's an article on Frozen Solid in this month's Max Power (yep, go onto the Car Talk forum to discover my sordid secret) and I note that they are now offering prepped brake discs. I think I may give them a go next time

Nitrac brake discs/

 

Can I interest you in some snake oil, sir?!?


I might be wrong, but they're making some HUGE claims there. And given that the accepted wisdom is for heat-treating to improve the structural-integrity of the disc, it seems counter-intuitive for cryo-treating to do the same...

 

It would depends on how much they were and what sort of evidence to back it all up they could provide.

If they're

 

There is some metallurgical evidence to say that cryogenic treatment does what they say it does so on the face of it it's not a snake oil claim.

I used to get stainless steel sword blades cryo frozen after hardening and tempering which would give them a bit more flexibility in my wilkinson sword days and there was a definate benefit.

But i don't know what effect cryo freezing has on cast iron. Need to dig out my old metallurgical text books....

 

Frozen Solid's explanation here:

http://www.frozensolid.co.uk/science.htm

 

PL - Did you try these discs?

Thanks
Rick

 

So what they are saying is that it is a type of super quenching.

And what happens when you heat it back up again.....

For other parts - yes, the purpose is obvious and totally logical.

For brakes.....Nah.

The only time we used liquid nitrogen in the manufacture of aircraft was for physically shrinking bolt/rivets to go into undersize holes, not for any propery it might give.

 

my whole rear brake system has been cryo'd
the calipers, discs. all oem but don't by a company in the states

 

I didn't, Rick. The car never sees the track now and I'm not going to mod it further (in fact, as you can tell form my sig, many of biggest mods have been removed).

 

Ron - I did kinda think that as well but Cyroing does change the properties of materials but I don't know what affect that might have on discs??

PL - That's a shame, I may just have to try them myself and report back