Factory 3.1 Engine in 911SC ??

[bluebox88]

Is anyone out there familiar with a 3.1 liter engine option available from the factory in the early 80s?
My understanding is that they were for Europe only. Has anyone ever seen one in the US?

[Grady Clay]

From Porsche AG, anything is possible if they don’t have to meet country import and emissions regulations. It just takes inclination and deep pockets.

There were racing 10.3:1 CR, 96 mm Mahle Nikasil racing P&Cs available in that era. They were the compliance size for SCCA and other venues. For “a few dollars more” , you could have Porsche build your engine with these. I don’t think these were ‘legal’ for any country in Europe but no one checked. Not so today. You just claim export to the mid-east.



I think Mahle only made one production run of these as the quickly disappeared. There were also several other ‘bolt on’ big P&C sets available – up to 98 mm and various CR. I have two ’79 911SC engines with the 9.1:1 CR, 98 mm versions.

Best,
Grady

[javadog]

There is someone that has discussed these engines in this forum a few years ago. I believe he dis-assembled one for a rebuild and found that he had something unique. You might try a search and see if you can find the thread.

JR

[johndglynn]

There's one thread here.

[RarlyL8]

Carma definitely at work against the guy who sold Jim that engine!

[bluebox88]

Many thanks for the link to the previous thread about this rare engine option. Very interesting theory about the motor having been the test bed for future production engines.
I have been told that several hundred were built in the early eighties prior to the introduction of the 3.2 in 1984.

Brian- you are correct about the karma issue, serves the guy right that a rare engine slipped through his dishonest fingers!