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...but I think diesel will make a comeback. Jeep starting selling the Liberty with an available diesel engine, and it has done much better than expected. And, there are plenty of people who are willing to buy a heavy duty pickup with a diesel engine (even if they do not use it to haul anything but air). Of course, the best of the European turbodiesels are a lot more refined than either of these examples. But, other than VW and Mercedes, we have nothing to choose from at present. The American public doesn't know what it is missing... need I say again just how amazing that BMW diesel I drove in Germany was?
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Once clean deisel(low sulfur) is introduced in America, we should see a lot more deisel sales on passenger cars. Gotta love that deisel torque!!
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...I heard clean diesel is coming for 2006 calendar year.... is that what you heard, mac?
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Yep..That's what I read..don't expect it to be cheap though
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It's always bothered me that you have so much selection in Europe as far as fuel type; I don't understand what the big problem of bringing clean diesel to NA is all about. If my car had a diesel option when I was buying, there wouldn't have been any consideration - I would have chosen diesel in a heartbeat. Not only for the extra fuel economy and (usually) torque, but I love the diesel 'clatter'. :) Too bad it's not easy to convert a gas vehicle to a diesel...
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http://www.onecryo.com/
One Cryo's Deep Cryogenics Tempering process improves performance and durability of high alloy, high strength, tool steels, aluminum, titanium, cast iron and more... Applications for our cryogenics process include... Manufacturing - Consumable Tooling, Saws, End Mills, etc. Motorsports - Racing Components, Engines, Brakes, etc. Firearms - Increases Gun Barrel Accuracy Sporting Goods - Softball Bats, Golf Clubs Benefits of our cryogenic process include... Closes and refines grain structures Reduces retained stresses, wear and surface roughness Reduces retained austenite, friction, heat & downtime Increases dimensional stability Increases durability & production and profits Increased Performance and Durability 25% to 500% |
http://www.onecryo.com/onecryo/motorsport-prijune98.htm
cool, heres an article regarding the uses in motorsports A partial shopping list for One Cryo (8 cylinder engine): Push Rods, each ... $2 Valves (each) ... $2 Camshaft (each) ... $30 Brake Rotor (each) $40 Ring & Pinion, set ... $100 Crankshaft ... $125 Heads (each) ... $125 Transmission Gears (set) ... $150 Engine Block, bare ... $375 Complete Engine Assembly, Long Block ... $600 |
Originally Posted by juddz
:bsflag:
...I knew I smelled something... Abstract The wear resistance of an Fe-12.2wt%Cr-0.84wt%Mo-0.43wt%V-1.44wt%C alloy tool steel after cold treatment at 223 K (subzero treatment) and after cryogenic treatment at 93 K (ultra-subzero treatment) has been investigated. The wear resistance of steels after cryogenic treatment is superior to that after cold treatment. The effects of cryogenic treatment on the microstructure were also studied by means of X-ray diffraction and transmission electron microscopy methods. Unlike cold treatment, cryogenic treatment improves the preferential precipitation of fine eta-carbides instead of epsilon-carbides. These fine carbide particles enhance the strength and toughness of the martensite matrix and then increase the wear resistance. The formation mechanism of fine eta-carbide is discussed. ---------- Huang JY, Zhu YT, Liao XZ, Beyerlein IJ, Bourke MA, Mitchell TE, "Microstructure of cryogenic treated M2 tool steel", MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 339 (1-2): 241-244 JAN 2 2003 Abstract Cryogenic treatment has been claimed to improve wear resistance of certain steels and has been implemented in cutting tools, autos, barrels etc. Although it has been confirmed that cryogenic treatment can improve the service life of tools, the underling mechanism remains unclear. In this paper, we studied the microstructure changes of M2 tool steel before and after cryogenic treatment. We found that cryogenic treatment can facilitate the formation of carbon clustering and increase the carbide density in the subsequent heat treatment, thus improving the wear resistance of steels. © 2003 Elsevier Science B.V. All rights reserved. ----------- Reitz W, Pendray J, "Cryoprocessing of materials: A review of current status", MATERIALS AND MANUFACTURING PROCESSES 16 (6): 829-840 2001 Abstract Cryoprocessing is the process of cooling a material to extremely low temperatures to generate enhanced mechanical and physical properties. This article examines the effects of cryoprocessing on steel and some copper alloys. Research has shown that improvements occur in wear resistance, dimensional stability, electrical and thermal conductivity, and hardness. The metallurgical aspects include reducing the amount of retained austenite, increasing carbide formation, and enhancing short-range diffusion. The processing steps are critical. This accounts for the considerable discrepancy in post-treated performance. You were saying? :p |
i understand a 10-15% increase, but double is kind of sketchy
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