Check out this website which claims that cryogenically freezing engines reduces wear and can increase performance.

http://www.cryopro.com/

Cryo has been used on performance engines for a while now not only does it decreased wear on the motor it also streathing metal on important components.
For example when my couisin had he VR4 motor rebuild he had Crank, Rods And Piston cryo treated for extra stenght and less wear even no the rods and piston were Forged aftermarket items we thought for afew extra hundred $ why not.

Sound's like a waste of time and money to me.

Mate arent you buildn a drag car? if so you better do your research as 90% of the engines built for drag racing are using this technology to there advantage.
How can something that adds strenght and life to engine components be a waste of time and money i dont no about you but if i was building a drag car i do everything i could to extend the life of my motor.
Most good racers already no this mate.

Any thing new always has it's sceptics, look at shopeening, tuftriding and nitrating. All processes that have been introduced and taken on by engine buiders.I used to work in a foundry and if a cast iron casting was exposed to a breeze from an open door it was enough chill the metal and make it brittle and hard, making it a bugger to machine. Castings were covered and allowed to cool slowly. This new process is just a development of what has been known for years, temperature alters the structure of metals. Cryo treatment is relatively new and I was keen to see if the claims for increased durability and strength were true. So at work we took too brand new and identical pumps and had one cryo trated and it wasn't cheap. After two years the cryo pump is still in service with no wear while the untreated pump is now sheduled for replacement. These pumps have a severe work cycle with hot and cold acidic products and can run for 48 hrs non stop. If I could afford it I would be using this treatment on my engine components. I understand that there are rule changes in the Supercar engine specs to cover this technology, and you don't find much more technically advanced pushrod engines than those things..

Panty Hose Last up to 6 Months without a run. $2.50

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Quote: It would seem that there are more than a few big time, big bucks racers that hold a diferent view.

When engine parts are stressed so high that service lives are measured in hours or less, then any technology that claims to increase strength & durability, & therefore increase the chance of seeing a checkered flag, is embraced by those that need it most.
These people very quickly turn claims into fact or fiction & I haven't yet heard anyone in the know say that it's fiction.

I guest you guys are right you shouldn't knock it till you try it.

There was a big write up on this process in NZ Hot Rod, a few years back.
What it said was that Cryogenic annealing changed the meatls crystaline structure, from martensite, to austenite, (Or vise versa) without causing embrittlement of the metal the way heat annealing does.
In the story, a mob in Auckland, called cryo solutions treated one half of a brand new chainsaw chain. It showed a picture of the chain after four and a half hours of cutting manuka. The untreated half was looking worn, but the treated half was like new.
The process doesn't require super low tempratures. Cool temps, (<-5C ) will also have this effect, only it takes longer to work.
Swiss clocks are reknown for their longevity. The parts of theese clocks were stored pre assembly in some part of switzerland, where it was bloody cold. this caused the molecular transformation, hence the long service life.
Another example is how detroit used to weather engine blocks. It gets Bloody cold there too. A winter outside made the blocks more wear resistant.(this was often thought of as a crock, but now we know why.)
Reportedly too, things bought back from space, were similarly effected.

I would love to do this to my engine, but with the cost of freight to auckland, expensive just becomes ridculus.

Cool! Jacko is into the cryo freeze, maybe he'd be interested?