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Old 01-02-2009, 12:40 PM   #1 (permalink)
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USA Cryogenic Treatment to Improve MPG

I have been reading a lot of articles about cryogenic treatment. It seems to increase engine performance and reduce blowby inside the engine. It also reduces wear (less friction). Anybody ever try it? I have read that someone cryo treated the engine in a Prius and the miles per gallon went over 100mpg. If you tried what did you think? It seems like it would work.

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Old 01-02-2009, 02:32 PM   #2 (permalink)
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Any link to a site on this magic prius.

Seems cryogenic treatment is possibly showing positive results regarding metals strength I don't see how it can by itself more than double the mpg of a prius. Engine drag just isn't that great a percentage of total load, if it could be totally eliminated (which it can't) it would not have much effect on a prius driving 65mph.

I say BS.
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Old 01-02-2009, 05:02 PM   #3 (permalink)
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I'm familiar with cryogenic soaks for metallic parts, and for improving resistance to crack formation it's an excellent process. As for improving mileage on an engine, I'd say very, very doubtful. I'd like to see any empirical test results that confirm better MPG. If I owned a NASCAR or Formula 1 car I'd seriously consider cryogenically soaking all major engine components, but only for reasons of durability.

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Old 01-02-2009, 08:59 PM   #4 (permalink)
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Old 06-02-2009, 04:22 AM   #5 (permalink)
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Seems like bullshit to me. At temps approaching absolute zero, atomic activity decreases dramatically so I doubt ANY cooling to that degree would have any permanent effect on metal parts. While they are cold they will much more brittle and shrink slightly but I can't see any permanent changes happening in the molecular structure.

The burden of proof is on the one making the claim. Lets see an independant, controlled test.
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Old 06-02-2009, 08:06 AM   #6 (permalink)
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i have only seen cryogenics being toted to improve a metals durability and resistance to stress fractures (ie cryo treating brake rotors) so i'm with the BS school of thought as far as the claims made.

a curious thing though... the process in not unlike tempering chocolate to make it more maleable and shiny when used in baking and modeling. yes i'm a foodie : )

maybe toyota should consider turbo/supercharging the engine to create more HP and translate that into better fuel economy
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Old 06-02-2009, 08:20 AM   #7 (permalink)
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Man, you guys should really research the process before saying anything bad about it. Cryogenic treatment and thermal coatings are both race proven methods that enhance durability and efficiency by tightening up clearances and decreasing friction. Do a web search for 300 below.
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Old 06-02-2009, 09:15 AM   #8 (permalink)
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^

Obviously we did the research. But the topic is fuel economy.

From 300 Below

"Cryogenic tempering occurs after creating a significant increase in abrasive wear resistance and overall durability for an engine, resulting in improved tensile strength, toughness and stability within the metals. This helps release internal residual stresses, which were created when the engine was manufactured. Overall, our clients in the motorsports industry use cryogenic processing for stress relief, dimensional stabilization, increased wear resistance and durability for their engines and other high performance parts associated with the chassis."

Not once do they mention reduced friction and improved fuel efficiency, you claim what 300 Below doesn't but give them as some sort of proof, still haven't seen evidence on efficiency.

Wear resistance is the closes they come but that's not the same thing.
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Last edited by worthywads; 06-03-2009 at 07:37 AM. Reason: remove any refrence to OP
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Old 06-02-2009, 09:47 PM   #9 (permalink)
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Why are you guys getting so bent out of shape over this?

It's pretty obvious that the OP just used that ridiculous claim of improved fuel economy to draw attention to the advertising of his web-site for cryogenic treatments. Just check out when rt_scion was last online.
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