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Old 03-31-2011, 02:22 PM   #1
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Location: Lexington, KY
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M96 3.8L Motors

Anyone know if there's a group that has done much re-working of those motors? I know Flat 6 Innovations has had great success taking the 3.2 motor up to 3.6, but I haven't really heard of anyone starting with one of the 2005-later 3.8 Carrera S motors as a starting point. I am wondering if the 3.8's are already pretty much maxed out right out of the gate?

2004 550 SE #1081 of 1953 (sold)
1997 911 Targa (sold)
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Old 03-31-2011, 04:36 PM   #2
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The 3.8 is actually an M97, not an M96. LN could certainly sleeve it if you wanted Nickies, run JE pistons, R&R or Pauter rods, LN upgraded IMS assembly, oil system mods, etc.

I don't know for sure, but there MAY be room to punch out the bore a hair more than the 99mm it already is.

My motor started life as a 3.6 (96mm bore with 82.8mm crank) and was sleeved with Nickies out to 99mm (so the 3.6 became a 3.8), and uses the 997 3.8 head gasket.

Not sure if the M97 really is any better or if it's just a function of the small sample size, but you don't seem to hear about 3.8s blowing up....

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