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403
Joined
5/21/2017
Location
Shelby, NC
US
Edited Date/Time
11/22/2019 5:52pm
Anybody ever had their transmission gears or engine cases shot peened? Any benefit? What does it cost?
WPC is a surface treatment to reduce friction via hydrodynamic lubrication. REM is a polishing process, that removes high spots (WPC does that too) and smooths the surface, but reduces hydrodynamic lubrication as a fully smooth surface can not hold oil very well. Can you explain the mechanism that would make REM superior to WPC despite the reduction in its ability to hold oil?
Cryo treatment claims to increase strength and toughness through a full conversion of the austenite to martensite that didn't convert in the heat treatment and aging process. My mechanical engineering degree, admittedly not a material science degree, gives me doubt that there is much to gain from the process. Further, my discussions with Formula 1 transmission engineers, who say they've tested it thoroughly without much, if any, improvement, also gives me doubts as to the advantages claimed. Do you have additional information I may have overlooked?
The Shop
Regardless, I don't have a financial stake in either, just offering my advice.
Considering your astronomically high knowledge and skill level on 1.) Fuel ratings 2.) 2-stroke jetting 3.) All aspects of metallurgical properties 4.) any Kawasaki R&D subjects 5.) building award winning show cars that bring record breaking prices at Mecum 6.) being a top National Pro on tricycles/quads 7.) pulling holeshots in every moto on your 465 against modern 450's 8.) any other subjects that I can't remember that you've displayed you pomposity on how great thou art. (I'm sure someone else could add a few) my question to you is---why do you keep posting on this forum that apparently only contains low-life persons of such inadequate intelligence ???
Blackjack-- follow Billy's (@ Luxon) advice. Dude knows his stuff. And disregard paradigm/Barnett. He's been thrown out of AT LEAST 3 other forums for doing the exact things he does here.
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he must have raced under an alias tho, his name is nowhere to be found...
Luxon knows what hes talking about. Hes a good source of information and literally designs tests and makes aftermarket products for bikes. If anyone here has some expertise its him, not us weekend warriors that do this in our spare time.
Your best bet is to make another new account and stop acting like an idiot. Nobodys impressed.
Of course you can want to do it just to do it too and there's nothing wrong with that if you have the money! You can combine all things mentioned in this thread if you really want the ultimate, but you'll be paying thousands for minimal improvement. Think of it this way - if doing everything mentioned is 100%, then doing just one thing is 90%, doing another is 99%, doing another is 99.9%, etc. It's a massively diminishing returns scenario. If you're only going to do one, then I'd recommend the WPC.
The OEM starts with a green forge, machines, case hardens, and then shot peens to relieve built up tensile stress. The material, case hardening, and shot peen are all crucially controlled processes to ensure the finished product ends up with the correct surface hardness to resist fatigue failure.
If you are concerned about making them last, the best thing you can do is keep ALL of the bottom end bearings and sliding components fresh.
A very wise 50+ year drive train engineer at work once told me 95% of the time the "failed" part in your hand is not the part that failed. Rather, it was the weak link in the system that was being acted upon by unplanned forces.
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