 914-6 2.7 build...Piston type?, Pistons for a weber carbed 2.7 build |
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| zfisher6164 |
 Dec 31 2022, 06:13 PM
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Newbie  Group: Members Posts: 41 Joined: 19-January 19 From: California Member No.: 22,809 Region Association: None 
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Engine rebuild on a 2.7 weber carbed engine and the pistons used 8 years ago are fuel injected pistons and I have gotten a few opinions of the type of piston to use by none are
definitive. Any ideas? thanks zac |
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| brant |
Jan 3 2023, 12:33 PM
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914 Wizard Group: Members Posts: 12,167 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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it should work with stock pistons.. and low compression with weak cams
but 165 hp with CIS may or may not be less with carbs. why not leave the CIS in place? at least you have easy starting and Fuel injection efficiency then... plus less hassle than carbs which are hard starting, and altitude influenced. but the assembly cost of the motor is the same so an extra 75 hp while your already in there is a big big difference.... almost 50% seriously... buy the bruce anderson book and read it twice... then research more, based on what you learn from the book/bible. |
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Posts in this topic
zfisher6164 914-6 2.7 build...Piston type? Dec 31 2022, 06:13 PM
sixnotfour 2.7 Mahle MFI.. only 8.5-1 thou or 2.9 mahle motor... Dec 31 2022, 07:14 PM zfisher6164 thanks the pistons in the engine now look like thi... Dec 31 2022, 07:36 PM zfisher6164 another picture Dec 31 2022, 07:37 PM Superhawk996 Pistons for the CIS fuel injection are not a great... Dec 31 2022, 08:22 PM zfisher6164 thanks this is the info I need the previous engine... Dec 31 2022, 08:49 PM zfisher6164 not sure about the cam but will find out soon Dec 31 2022, 08:50 PM flyer86d The engine that I built for my 1968 911 started ou... Jan 1 2023, 11:55 AM brant You really need a copy of the Bruce Anderson book
... Jan 1 2023, 12:03 PM JmuRiz Budget is key, I was going to keep my cis pistons ... Jan 1 2023, 02:04 PM 930cabman Thanks for posting, I am in the same boat, buildin... Jan 2 2023, 04:03 PM zfisher6164 thanks for the replies the CIS pistons are what I ... Jan 2 2023, 11:53 PM
Superhawk996
thanks for the replies the CIS pistons are what I... Jan 3 2023, 12:15 AM zfisher6164 I am reading the book and this was a 914-6 with a ... Jan 3 2023, 12:54 PM campbellcj My 2.7 presently has Mahle cylinders w/ JE pistons... Jan 3 2023, 02:48 PM flyer86d
My 2.7 presently has Mahle cylinders w/ JE piston... Jan 3 2023, 04:17 PM pek771 Are these Nikasil or Alusil cylinders? Jan 3 2023, 05:46 PM rudedude CIS with those pistons are most likely alusil. Th... Jan 3 2023, 08:33 PM targa72e While the 2.7 RS pistons and Cylinder do not have ... Jan 5 2023, 02:31 AM |
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