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Thread: 911 R with 1968 912 roots..

  1. #291
    Mbr 3268 Fixer's Avatar
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    So I actually located my 912R's original motor. It's being shipped up from Florida. Pretty cool stuff.
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    Matthew J. Mariani BSID, Member 32689
    Haverford Pennsylvania

  2. #292
    Mbr 3268 Fixer's Avatar
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    Update; this car will be featured in Autoweek once the Porsche flat 4 race motor is completed and tested. They contacted me through Instagram (the_r_institute) and said that they were really excited to feature this 1968 912 outlaw.
    I've always liked Autoweek so it's really an honor for me.
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    Matthew J. Mariani BSID, Member 32689
    Haverford Pennsylvania

  3. #293
    Mbr 3268 Fixer's Avatar
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    Stinger 912R motor update; I bolted the #616casehalves together..the main bearing clearances are too high (.004"-005") number 1,2&3 and bearing in the timing cover was within spec but higher than I'd prefer at .004"

    The crank turning is spot-on according to our little spec book by "the Maestro" Harry Pellow.

    We'll buy new bearings (thicker, .50mm) and bore them in the case to have a perfect .002" clearance on all when done.

    So, another week or two until assembly can begin unfortunately.


    Motor will be 10,5:1 cr, has billet cylinders (86mm), 74mm stroke for 1720ccs. Nuetek cam, Carrillo rods of course, light pins, JE forged pistons, new but standard valves, 40mm IDF Webers.
    The rotating assembly has been balanced dynamically, crank balanced and magnafluxed. I didn't have the new rods magnafluxed, I dont think necessary.The Carrillo rods are stronger than stock and weigh about 80 grams less per rod.

    Power and torque*TBD.

    Weight should be in the high 1600s as before.

    The safety stripe is a custom color I mixed in Glasurit and added a few months ago to be seen as well as accent the SEV Marchal lighting
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    Last edited by Fixer; 10-01-2018 at 01:04 PM.
    Matthew J. Mariani BSID, Member 32689
    Haverford Pennsylvania

  4. #294
    Mbr 3268 Fixer's Avatar
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    The motor has been started and running for about 20 minutes.

    https://youtu.be/zvs6iDzIIrU

    Specs: Porsche 616/39 flat4. 1720CC, 10,3:1CR, JE forged pistons, JE Pro Seal Rings, C&C milled billet cylinders by Shasta Design, Nuetek SX-2 cam, new style Carrillo rods, light pins, stock valves with racing springs/titanium keepers, turned, balanced and magnafluxed original Crank, balanced rotating assembly, early 16 blade fan, Weber IDF 40s, 1-5/8" extractor exhaust. Custom full flow oil filtering, custom loop oil cooler.
    Matthew J. Mariani BSID, Member 32689
    Haverford Pennsylvania

  5. #295
    Mbr 3268 Fixer's Avatar
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    Please remove this thread as per my request Early S Registry.

    BR,

    Matt Mariani
    Matthew J. Mariani BSID, Member 32689
    Haverford Pennsylvania

  6. #296
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    Enquiring minds want to know...

    Why?

  7. #297
    Moderator Chuck Miller's Avatar
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    I have asked the same question to the original poster...
    Until I get an answer I will close it, but not remove it....

    cm
    Chuck Miller
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