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			Join Date: Jan 2008 
				
				
				
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				Provide HP numbers for a 3.0L biuld
			 
			
			Here are some toys and tricks that I thought would deliver the best HP for a 3.0L rebuild can any give me HP numbers for a build like this:  
		
	
		
	
			
				Mahle Pistons 98mm PMO 46mm CAMshaft S SSI EXHAUST Quasi diff 43 teeth fine spine Twin plug distributor This would cost 18K just for the parts. The Mahle pistons I would have to order from God.  | 
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			I don't think that an "early S" cam shaft is really going to give you the lift that the engine could use -- especially if it's an early SC with the large ports.  I think that you'd do better with GE60's. 
		
	
		
	
			
			
		
		
		
		
		
			I'm guessing about 241 HP at 6300 RPM and 199 lb-ft of torque at 5100 RPM. 
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	John '69 911E "It's a poor craftsman who blames their tools" -- Unknown "Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman  | 
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				HP numbers
			 
			
			I think that engine should do at least 270 hp at the flywheel. That number may be a bit low depending on exhaust and comp. ratio.  The SSI and muffler combination could result in less power. We use 1 5/8 Georges headers. 
		
	
		
	
			
			
		
		
		
		
		
		
		
		
			I have dynoed similar engines with stock cams and EFI that do 260-265 with no problem using headers and race muffler. Last edited by rsscotty; 03-01-2008 at 06:01 PM..  | 
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			 Loose nut bhind the wheel 
			
			
		
			
			
			Join Date: Dec 2005 
				Location: Durham,  NC 
				
				
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		 Quote: 
	
  
		
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	Ed 1970 911S Targa 2.7RS MFI dual plug 10.5:1 1974 260Z SCCA ITS 1998 M3  | 
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			Oops.  I forgot to take into account the 98 mm pistons.  My corrected estimate agrees with Rscotty: 270 HP at 6300 and 220 lb-ft at 5100 RPM.
		 
		
	
		
	
			
			
				
					
				__________________ 
		
		
		
		
		
	
	John '69 911E "It's a poor craftsman who blames their tools" -- Unknown "Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman  | 
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