cryo treating engine intervals ya or nay??

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Originally Posted by Dirty Mech.

you really dont need the cryo if you but good quality parts. but seeing that its a honda you might need all the help you can get.

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hmmm.... i help alot if nissan drivers lose girlfreinds in my HoNda:crazy:

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Originally Posted by -SkInNy-

hmmm.... i help alot if nissan drivers lose girlfreinds in my HoNda:crazy:

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i call bs but then again what are these "nissans?" Sentra's with bent up sheet metal and faded paint from the early 90's or something more the lines of a late model mt.fuji....?

what about cryo treating tranny parts. Engine parts, i cant see a benefit to that.

Transmission yes, especially if there is no aftermarket gear set available for the application. A good shot peen, cryotreatment and, and nitride job on a tranny. But you'd really need to be pushing big power to make it worth while.

With my motor the long stroke, short rod, high piston speeds, creates torsional vibrations that act like an impact hammer on the trans gears once the revs go high enough.


As far as the motor is concerned, good parts and good machine work will go a long way.

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Originally Posted by Big J

Transmission yes, especially if there is no aftermarket gear set available for the application. A good shot peen, cryotreatment and, and nitride job on a tranny. But you'd really need to be pushing big power to make it worth while.

With my motor the long stroke, short rod, high piston speeds, creates torsional vibrations that act like an impact hammer on the trans gears once the revs go high enough.


As far as the motor is concerned, good parts and good machine work will go a long way.

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i wouldnt shot peen a gear. this makes the parts slightly smaller and if gear dont mesh right. no matter how strong they are then will smack and explode.

read this, get smart

http://findarticles.com/p/articles/m...2/ai_n21428028

A properly peened gear set will last way longer than a non peened gear set set to the same clearances, end of story.

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Originally Posted by Big J

read this, get smart

http://findarticles.com/p/articles/m...2/ai_n21428028

A properly peened gear set will last way longer than a non peened gear set set to the same clearances, end of story.

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im not saying a shot peened gear set isnt going to last longer with the same clearances.... thats what im trying to get at... it has to be the same clearances because that little slack is what is going to kill the gears otherwise. of course they will last longer when shot peened. but shot peen makes the parts smaller ever so slightly... clearances do change when shot peened.

it doesn't change the size enough to be an issue, we're talking changes on a microscopic level.

What place in Georgia can shot peen gears? And, about how much does that usually cost?

Somebody also mentioned nitriding. I've heard about that being done to crank shafts. Who does that in Georgia?

Thanks.

nitriding and shotpeen are both surface treatments, cryotreating will affect the entire thickness of the metal.

Don't know of anyone in Ga that does it, maybe Sunbelt has someone they use.

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Originally Posted by hybrid90accord

I've heard nothing but good thinking about cryo treating engine parts and plan on doing mine as well as transmission parts but I was wondering are their any downsides to doing this process or concerns I should look for????

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I've heard great things about doing engine internals. in the case of the Isuzu Impulse Rs pistons, they already came forged. When rebuilding, most of us just hsip them in for Cyro-treating and it makes everything brand new. The deep-freezing is supposed to force the stress' out of the metal.


As for things like gears, that's no so much of a good idea. By cryo-treating thin pieces, this causes them to be "fragile" in a way. Things chip off easier and stuff, of course, breaks easier. I don't know how, but most cyro-treaters advise against it.