small bore, high revving 6, anyone running one now? |
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small bore, high revving 6, anyone running one now? |
DanT |
Dec 18 2010, 10:12 AM
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#1
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Going back to the Dark Side! Group: Members Posts: 4,300 Joined: 4-October 04 From: Auburn, CA Member No.: 2,880 Region Association: None |
I have the chance to acquire an 2.0L 6 case and have thought about building a small bore 2.0-2.5L high revving 6.
Anyone out there running such a combination right now? This would be a street/AX motor. Prefer to do single plug. Most likely use Webers, since MFI parts are getting hard to come by . What combinations of Pistons/cams are you folks using? Pictures of motor builds would be appreciated. Just sliding in a 2.7L CSI motor is also a consideration if the small bore motor becomes too much of a pain. (IMG:style_emoticons/default/biggrin.gif) |
ME733 |
Dec 18 2010, 11:23 AM
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#2
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Senior Member Group: Members Posts: 842 Joined: 25-June 08 From: Atlanta Ga. Member No.: 9,209 Region Association: South East States |
The ..2.0 six...had a short stroke...66mm.(same as a carrera 4 cam)., most also did NOT have a counterbalanced crankshaft....using a counterbalanced crank is essental for hi revs with reliability....titanium rods were used in the race engines, but carrello has excellant rods also...In my opinion the 911-S- cams are way too "peaky", and a better engine can be made with with other cams...get the bruce anderson book... "Porsche 911 performance handbook".read it, study it, then you can make some informed choises.
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