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Registered
Join Date: Apr 2009
Location: Grasonville, Maryland
Posts: 131
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Boosting at 2.7
I have a 2.7 I will be rebuilding. It came from a 76 911. My preference is to rebuild this and put it into a 73 or 74. I would like to beef up the performance. What are some recommendations/expectations?
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04-23-2009, 06:52 AM
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Registered
Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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There are many things one can do to the 2.7 to significantly improve performance.
Two questions, though: 1) Whats your budget? (this is the biggie) 2) Do you require smog compliance?
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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04-23-2009, 09:51 AM
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Registered
Join Date: Apr 2009
Location: Grasonville, Maryland
Posts: 131
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The budget is open ended. The amount of money dictates how long I take. I would rather take the time and spend the money to have a nice set up. With that said, I will be doing the rebuild and have never done that before.
This will be a "historic" car so no smog or emmission requirements. |
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04-23-2009, 10:35 AM
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Join Date: May 2003
Posts: 3,346
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You can build a nice 2.7 RS motor but it will cost alot. It would be much cheaper to get a 3.0 engine put carbs on it and have a bulletproof motor with more power and much longer life.
-Andy
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72 Carrera RS replica, Spec 911 racer |
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04-23-2009, 11:56 AM
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Registered
Join Date: Dec 2005
Location: Melb, Aus.
Posts: 407
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yeah I'm looking to do the same, rebuild a 2.7, I'd be interested to hear what Steve@rennsport has to say my plans
I have Euro spec 75 911 2.7 but with S pistons (8.5 compression), yet I still have the non-S Cam's. I can see some opportunity to increase performance while retaining the k-jetronic fuel injection, but not a lot. They are - S Cams and SSI heat exchangers with either single or dual outlet muffler. There is not a lot of difference between the base level 911 cams and 911s cams but some. SSI heat exchangers look like they will offer some performance improvement. Steve - any other ideas? cheers
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Shane 1975 911 Coupe 2.7L 4Spd CIS Sporto 9115100500 1977 911 Targa, 3.0L, 5 Spd LSD, Zenith Carbs modified, SSI, Dansk 9117310158 |
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04-27-2009, 08:13 PM
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