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-   -   A special find in a 73"S" (http://forums.pelicanparts.com/911-engine-rebuilding-forum/867072-special-find-73-s.html)

Henry Schmidt 05-27-2015 06:52 AM

A special find in a 73"S"
 
When this engine was removed from it's chassis, a 1973 911 S (with Bromos race history) we were told it was a 2.7 RS. Imagine our surprise when we discovered that the engine was actually a 3.0 RS. A single plug 3.0 MFI engine built on a sand cast RSR 3.0 engine case. In 30 years this is the only one I've ever seen.

http://forums.pelicanparts.com/uploa...1432737678.jpg
http://forums.pelicanparts.com/uploa...1432737712.jpg
http://forums.pelicanparts.com/uploa...1432737743.jpg
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http://forums.pelicanparts.com/uploa...1432737970.jpghttp://forums.pelicanparts.com/uploa...1432738251.jpg
http://forums.pelicanparts.com/uploa...1432738336.jpg

Henry Schmidt 05-27-2015 07:07 AM

Over the next few weeks I'll share the build we did on this very rare engine.
Before

http://forums.pelicanparts.com/uploa...1432738859.jpg

After

http://forums.pelicanparts.com/uploa...1432739159.jpg
http://forums.pelicanparts.com/uploa...1432739184.jpg

91133 05-27-2015 03:25 PM

Wow! That would be one time 'non-matching numbers' actually added value!

Look forward to the story.

tocobill 05-27-2015 03:55 PM

Henry ... I saw pics of the headers in another post. where where they source or were they a in house custom job?

JV911SYDNEY 05-27-2015 05:13 PM

Fwooor

That should come with a NSFW warning :eek:

Matt Monson 05-27-2015 07:50 PM

So cool.

jpnovak 05-28-2015 05:46 PM

Very Cool.

Are the case dimensions the same as the early sand cast case? I realize head stud and spigot are likely larger to accommodate the (presumably) 95mm P/C set.

al lkosmal 05-28-2015 09:49 PM

wow, Nice find Henry.

regards,
al

Henry Schmidt 05-29-2015 08:09 AM

Quote:

Originally Posted by jpnovak (Post 8641986)
Very Cool.

Are the case dimensions the same as the early sand cast case? I realize head stud and spigot are likely larger to accommodate the (presumably) 95mm P/C set.

This very special case has the same external dimensions as all 911 cases from 64 to 89.
The unique characteristics that are different than the early 2.0 sand cast case is stud spacing half way between between 2.0-2.7 and 3.0-3.3.
Very rare. Special heads as well.
The other difference is the 5 studs for mounting chain boxes vs 3 studs and 2 pins.
The intermediate shaft has thrust bearings similar to what was common on later cases.
There are also a considerable number of reinforcements in this casting including a larger base for the cylinder mounting.

Henry Schmidt 05-29-2015 08:18 AM

http://forums.pelicanparts.com/uploa...1432916085.jpg
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http://forums.pelicanparts.com/uploa...1432916231.jpg
http://forums.pelicanparts.com/uploa...1432916251.jpg

Henry Schmidt 05-29-2015 08:24 AM

http://forums.pelicanparts.com/uploa...1432916345.jpg
http://forums.pelicanparts.com/uploa...1432916370.jpg
http://forums.pelicanparts.com/uploa...1432916399.jpg
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http://forums.pelicanparts.com/uploa...1432916604.jpg

shbop 05-31-2015 03:16 AM

signing-up.

fred cook 05-31-2015 03:26 AM

3.0 engine.......
 
Very interesting and a real "looker"! Are those Mahle pistons? If so, do you know the compression ratio? Also, what level of horsepower do you expect this engine to make? The pistons look very similar to the Mahle pistons that I used in my 3.3SS build. My set were 10.1:1 compression.

Henry Schmidt 06-01-2015 08:42 AM

http://forums.pelicanparts.com/uploa...1433176105.jpg
http://forums.pelicanparts.com/uploa...1433176127.jpg
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http://forums.pelicanparts.com/uploa...1433176939.jpg

Farrell 06-01-2015 01:04 PM

very neat!

daepp 06-01-2015 09:01 PM

I cant believe I almost missed this.

356RS 06-02-2015 08:33 AM

Very rare engine. What a surprise.

Henry Schmidt 06-02-2015 10:51 AM

Quote:

Originally Posted by 356RS (Post 8648590)
Very rare engine. What a surprise.

As we progress, we will post a pictures of the custom injection we built for this project but until then here's the pump you built for this project.
Some Supertec, some Burnham Performance and some MFI Werks magic all came together to produce a very special pump.

http://forums.pelicanparts.com/uploa...1433270999.jpg


http://forums.pelicanparts.com/uploa...1433270872.jpg

Burnham Performance
1071 Avenida Acaso ste.D
Camarillo, Ca. 93012
805-240-6931
rennwerks@hotmail.com

MFI Werks
10227 N.W. Swallow St.
Seal Rock, OR. 97376
Mark Jung
541-563-3702
info@mfiwerks.com

BURN-BROS 06-02-2015 11:57 AM

Very Cool Motor !

xbrumossalesman 06-02-2015 12:38 PM

Brumos called-they want their engine back.


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