1980 911SC-L Prototype HELP

dporsche74 · 10:28 AM

OK I was just informed about a rather rare 1980 911SC-L prototype

Read here

Excellence :: Point One : The Forgotten 911 SC-L 3.1 : page 3

One for sale here 155K

AutoTrader Classics - 1980 Porsche 911 Silver Manual | Import Classics | Syosset, NY

So..... I picked up a parts car 80SC Row coupe .. after reading the article
I ran out to check it out alittle closer In the article the guy sees the fuel dizzy part number is strange 6149/8613E....

2nd I pull off the right side air block off plate what do i see is that it has the smooth top 930 Turbo Cylinders installed.
DO i have a rare only 100 made Porsche prototype engine/car.

any help would be most appreciated thanks!!!

will post pictures below

dporsche74 · 10:39 AM

91A0131864 6301719 930 /09

dporsche74 · 08-19-2013, 11:35 AM

OK Confirmed Rolf Sprenger 3.1 stamp
This is rare ???. i just learned of it this morning

peon77 · 08-19-2013, 11:45 AM

the stamp below the 930/09 stamp is the confirmation it is a 3.1

Guvnor · Guvnor's Garage

Wow, very cool! What are you going to do with it? Hopefully no longer a parts car

dporsche74 · 07:04 PM

With that 3.1 in the article and the 3.1 car for sale both the same car and the only ONE in the USA... (?)
Who else has one .. anyone know of any more and any insight would be great on this ...

thanks and how fun decoding Porsche stuff.

Josh D · Josh D's Garage

Yes, very cool and very rare. From what I have read on the subject of the '3.1' is that it was a 'power kit' installed at the factory for European customers requesting more than the standard rated power. I don't think it was considered a prototype, but I'm certainly not an expert on the subject, only going by what I have read.

That is a very nice and rare car, but find it hard to believe it would fetch $155K!

djpateman · 08-19-2013, 12:24 PM

I know of another 3.1 for sale; last price I saw was $15k for the car.

dporsche74 · 08-19-2013, 01:00 PM

Post it Dave thanks

Flojo · Flojo's Garage

Hi!
I find this very interesting.
May I kindly ask you to permit me sharing this on the German Elfertreff - Das 911 & Porsche Forum - Powered by vBulletin board?

dporsche74 · 08-20-2013, 05:01 AM

Hey Flo ,yes please share the 911sc-l on Elfertreff,, maybe more os known about these sc-l in Germany. Thanks

CountD · 08-20-2013, 02:19 PM

So essentially it seems to be an option for the motor - so the motor is special and the chassis seems to be completely stock. Interesting, the motor should be called the 911SC-RS instead for the 210 horses. Interesting piece, and even more interesting because you can move the motor and put it in another car and the motor still has the option. Good thing you were smart enough to investigate this before all the parts went to the wind. I'm sure that's been done 100 times before with these motors...

saxen · 08-20-2013, 02:25 PM

I wonder if you could use this engine in spec racing classes... hum..

Bob Kontak · Bob Kontak's Garage

Quote:

Originally Posted by CountD

and even more interesting because you can move the motor and put it in another car and the motor still has the option.

Why would you want to do that?

dporsche74 · 06:46 PM

According to the article it has a larger oil cooler ..I dont know if its larger than a normal SC see Pic below..
It also has a taller 5th gear which i havent got under to get the trans # yet.... cars has 7x8 16 fuchs and velour pin stripped Sport seats..
is the rpm r speedo different then SC ?
So ...wow ..this is Wild.. It looks like I am a 4th finder of one of these Factory Secret 3.1L 210HP RS engine/cars in the US or anywhere else i can find so far ??
Other then that .. Google and Pelican is kinda blank.
I just considered this car a normal SC roach ...
Jimmy Bell informed me of a old Excellence article he read about a rare SC=L
and I should at least check this ROW .. thanks Jimmy i would have never known about the 3.1 !!

How Awesome is that!!! lol

lonewolf · lonewolf's Garage

Jim Williams has a real 3.1 engine in his early car

CountD · 08-20-2013, 08:38 PM

I'm sure people will be on the lookout more - I mean these engines are pretty bulletproof. People in Europe probably know what they have, and to them it's pretty special. Most that are lost will probably be discovered like you did - removing the shroud and seeing square parts.

dporsche74 · 08-21-2013, 12:14 PM

Indeed... who ever has a 1979-1981 ROW car .. run out a check for the 3.1 stamp

also is that oil cooler longer then and stock SC one?... anyone have one sitting around they can measure

javadog · 08-21-2013, 12:42 PM

That oil cooler is the 20 tube brass cooler. The early SC used the trombone-style cooler, which is why they probably listed the brass one as "bigger". At some point, I think the ROW SC got the brass cooler.

Nothing special about the speedo and tach. The speedo might be original. Check the date stamps on the back and compare them to the build date of the car.

Got pictures of the whole car?

JR

Josh D · Josh D's Garage

Quote:

Originally Posted by dporsche74

It looks like I am a 4th finder of one of these Factory Secret 3.1L 210HP RS engine/cars in the US or anywhere else i can find so far ??

That motor is rare and cool, but I'd be careful calling it an RS motor, as it was more of a super secret power kit option than something destined for motorsport like the true SC/RS of that time.

That oil cooler looks just like the one in my '80 RoW SC. And yes, I've checked for the 3.1 stamp on mine and had none.