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-   Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)
-   -   Cryo Treating The Whole Short Block (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/cryo-treating-whole-short-block-62266/)

WNT2CREALPAIN 10-19-2006 02:37 AM

I'd like to hear some of your opinions on this.

j9fd3s 10-19-2006 10:57 AM

why would you?

WNT2CREALPAIN 10-19-2006 01:59 PM

Never said I would I just wanted some opinions on it.



Dave from speed machine performance did it to the motor in the falken FD.

WNT2CREALPAIN 10-19-2006 02:00 PM


Originally Posted by j9fd3s' post='841543' date='Oct 19 2006, 07:57 AM

why would you?



why would you cryo treat in the first place... thats why lol

j9fd3s 10-19-2006 11:21 PM

what problem are you trying to fix by cryoing everything?

WNT2CREALPAIN 10-20-2006 02:33 PM


Originally Posted by j9fd3s' post='841734' date='Oct 19 2006, 08:21 PM

what problem are you trying to fix by cryoing everything?



no problem at all....



again I never said I was going to or for cryo treating everything



as of right now im only for cryoing stationary gears, eccentric shaft, seals and springs.



I have a question on cryo treating the rotors though, wouldn't it make them heavier?

iceblue 11-04-2006 10:04 PM

Cryogenics is a liquid nitrogen process. It is a metal hardening process that bonds the molecules back together. Reason being when metal is hardened and forged at atmospheric temps the molecules separate and cause austenite. When the metal is rehardend for "treatment" in controlled environments the molecules can restructure tightly pushing the austenite out that cause the metal to fatigue in these points. “Kind of like coal to a diamond”



2 things happen.



1. The metal becomes stronger

2. Heat transfer becomes greater.



The stronger metal is the more brittle it becomes. Soft metals bend, hard metal crack and shatter.



Cryogenics claim results of.



Durability (resistance to wear and fatigue) is around 100% (that’s double), the typical increase in strength is 30% to 50%

Tom93R1 11-09-2006 05:23 PM


Originally Posted by WNT2CREALPAIN' post='841860' date='Oct 20 2006, 12:33 PM



I have a question on cryo treating the rotors though, wouldn't it make them heavier?



Cryo treating doesnt add mass, the only way you can add mass is to add some material to the rotors and cryo treating doesnt do that.



I am skeptical on cryo treating and its supposed benefits. But if cryo treating does in fact do what it claims then I certainly wouldnt treat the apex seals. Why would you want them to be harder? They would be more brittle than stock and they would wear your housings down faster. Seems like a https://www.nopistons.com/forums/pub...1047683664.gif to me

WNT2CREALPAIN 11-29-2006 02:47 PM


Originally Posted by Tom93R1' post='844703' date='Nov 9 2006, 03:23 PM

Cryo treating doesnt add mass, the only way you can add mass is to add some material to the rotors and cryo treating doesnt do that.



I am skeptical on cryo treating and its supposed benefits. But if cryo treating does in fact do what it claims then I certainly wouldnt treat the apex seals. Why would you want them to be harder? They would be more brittle than stock and they would wear your housings down faster. Seems like a https://www.nopistons.com/forums/pub...1047683664.gif to me



cryo treat the housing then also? lol https://www.nopistons.com/forums/pub...IR#>/dunno.gif that's why im asking questions here guys



ask Dee why the apex seals in the fd drag car are cryo treated https://www.nopistons.com/forums/pub...#>/biggrin.gif

Heath 11-29-2006 08:21 PM

I'd like to hear more discussion since I have minimal knowledge on the subject myself.


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