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Registered
Join Date: May 2018
Posts: 264
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Which pistons and cylinders for 3.8?
Ok - question for my 3.8 build. If you had to choose between these 2 piston/cylinder sets, which ones would you go with? Due to some previous mishaps - my case had to be bored to 109mm machine in cylinders, so these are the 2 options I am looking at. One is 4032 and the other is 2618. This will be mostly a street car - hope to put a few miles on it.
This is the 2618 LN Nickies and Mahle combo for a 3.9 https://lnengineering.com/porsche-911-36l-to-39l-964-993-1989-1998-machine-in-mahle-cylinder-and-piston-set.html This is the 4032 all mahle P+C set for a 3.8 https://lnengineering.com/shop-by-model/porsche-964-993/porsche-993-rsr-36l-to-38l-o109mm-cyl-mahle-cylinder-and-piston-set.html Basically the bottom 2 options from this: https://www.us.mahle.com/media/usa/motorsports/porsche-air-cooled-3-6l-2022-web-new-look.pdf |
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02-15-2022, 05:01 PM
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Registered
Join Date: Jan 2003
Location: Langley,B.C.
Posts: 12,000
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Ask Charles at LN what he recommends based on you planned build and use of the engine.
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Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
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02-22-2022, 07:24 PM
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If it were me, I would go with Mahle for a couple reasons. You can run tighter piston to cylinder clearances with 4032 and Mahle generally lasts longer. Second I was told by certain builders that they don’t recommend going over 102.7mm due to roundness issues. Both points are debatable but my vote would be Mahle option of the 2 choices presented.
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02-23-2022, 09:32 AM
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