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| Rotary Tech - General Rotary Engine related tech section.. Tech section for general Rotary Engine... This includes, building 12As, 13Bs, 20Bs, Renesis, etc... | 
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			 At the dirt track. 
			
			
			
				
			
			Join Date: Jan 2010 
				Location: Willamette Valley, OR 
				
				
					Posts: 89
				 
				
				
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			..
		 
		
		
		
		
		
		
			
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	Rollin like a reuleaux. Unstoppable.  | 
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			 Rotary Masochist 
			
			
			
			Join Date: May 2008 
				Location: Floyds Knobs, IN 
				
				
					Posts: 494
				 
				
				
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		 Sure about that number? We had some plates ground a while back and took some measurements of re-ground used and brand new OE plates. We found a new set of OE plate to be about 12 Ra (micro-inches) on average. Our guy got the used plates to an average of 8 Ra. The rough correlation between the RMS and Ra is around 11%. So our measurements for the stock plate would roughly be 13 RMS. They look to good to be as bad as your measurement would suggest. 
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	_______________________________________________ One stop Haltech, AEM, Syvecs shopping. Installation and tuning. http://www.lms-efi.com Free support. Drop us an email. chris@lms-efi.com 502-515-7482 Facebook @LMS-EFI  | 
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			 Rotary Fanatic 
			
			
			
			Join Date: Feb 2008 
				Location: Shelby Twp MI. 
				
				
					Posts: 315
				 
				
				
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		 Quote: 
	
 ![]() O well....  | 
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		#6 | |
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			 Rotary Masochist 
			
			
			
			Join Date: May 2008 
				Location: Floyds Knobs, IN 
				
				
					Posts: 494
				 
				
				
				Rep Power: 18 ![]()  | 
	
	
	
		
		
		
		 Quote: 
	
    That's funny.
		
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	_______________________________________________ One stop Haltech, AEM, Syvecs shopping. Installation and tuning. http://www.lms-efi.com Free support. Drop us an email. chris@lms-efi.com 502-515-7482 Facebook @LMS-EFI  | 
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