Cryo treatment
 

has anybody heard of cryo treating any part of the car and getting better gains in any way? I know that it hardens the metal which would allow for slightly more sustained abuse.
The reason I'm asking is because my friend is in this Automotive technical school and there is a Cryo freezer there so I got an :idea: .

It doesn't harden the metal. Sorry..

I was reading an article in Turbo Magazine that they wanted to knifeedge the crankshaft that they already cryo treated and the people at the machine shop said it took an extra 2 hours to do the job. In the article itself they said to do cryo treatment last in order to save time.

Researchers have found that the effects of shallow cryogenic tempering (-110°F) is minimal unless it is performed as part of the initial heat treat cycle. Heat treating is what gives steel its hardness as well as its toughness, wear resistance and ductility. Even performed properly, heat treating cannot remove all of the retained austenite (large, unstable particles of carbon carbide) from a steel. Proper heat treating is a key part in increasing a parts toughness, durability, wear resistance, strength and Rockwell hardness.
The beneficial changes that occur as a result of the heat treat process do not actually take place during the heating, but, rather from the cooling or "quenching" from the high temperature. (The benefits of the quench do not stop at room temperature, as many alloys will continue to show significant improvements as the quench temperature nears absolute zero.) While it is impossible to actually achieve -459.67°F, (a molecular zero movement state that eliminates all stress), deep cryogenic tempering temperatures are very efficient and cost effective in increasing dimensional stability, increasing wear resistance and performance of most alloys.

So therefore I will derive some benefit from cryo treatment.

Does anybody have a clue as to what parts are recommended to cryo treat?

engine blocks and parts
tranny parts (gears and etc)
brake rotors

and unless you're doing something crazy with your motor you derive very little benefit from it. only thing i would say to throw in is the brake rotors.

By cryo'ing the engine's internals would that allow for a higher rpm?

not really

why would you think that?

Cryo the oil, that's internal.

Because of the heat stress that occurs when raising the redline. When a car in the redline for too long the temp. goes up. Maybe because the internals were cryo-ed therefore it can withstand a higher stress levels.

Basically it's for hardcore race motors to improve durability when running a motor within an inch (or an rpm) or it's life. Like they said, unless you plan on building a motor for massive amounts of boost, it's really unnesessary. But I have read in race mags where cryo-treated brake rotors lasted substantially longer, IN RACE CONDITIONS. Might be good for the crappy internals of the 3rd gen auto trans.

meh.. I cryo'd my last set of skyline rotors on my Max. they still cracked in about the same time the plain ones did... same part, same brand (OEM)...

there are certain parts of the car that would benefit from cryo treating, but if you're having to ask us these questions, you don't need to be digging that far into your car to do it.

Shot-peening parts would probably have better benefits than just cyro-treating. As has been said, cyro treatment only affects the wear resistance of the parts, not the ultimate strength. I think thats correct anyways.

I think brad has the most apt explanation.
oh and Matt, u be a hard brakin' fool.

He has got a sweet video of him at the track....I wish he would post it again...:hide:

Meh.. they're not that impressive.. I haven't had a camera to play with in quite a while. I'm much better than I was when I took these vids.

Motorsport Ranch- near Dallas, TX. 25MB:
http://blehmco.com/movies/me_at_msr_3.WMV

Texas World Speedway, College Station, TX. 16MB.
http://blehmco.com/movies/me_at_tws_1.wmv

Thanks matt...I saved them this time....My two boys will love to watch them....

Then tell me " When can we do that dad" :faint:

saved, I needed those vids a bit back