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Thread: MFI value vs Carbs on non matching engine

  1. 11-02-2007, 08:58 AM #1
    Soterik
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    MFI value vs Carbs on non matching engine

    OK....

    1973 911S targa.... has a non matching engine, but completely documented fresh $13K rebuild to RS specs, except it has carbs instead of MFI.

    What's the "value added" to the car by changing over to MFI? It would still be a non matching engine, but would look "correct". Otherwise the car is being completed, and is going to be a stunner... 88K orig miles, high quality respray in original silver, complete leather interior by Tony with sport seats..., Al Reed wheels, etc. etc.

    I just don't know if I should spend the extra $$ on an non-matching engine...

    thanks,
    Eric
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  2. 11-02-2007, 09:04 AM #2
    pu911rsr
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    Eric,
    I think that's a tough call, it might ad 5K to value, probably what it would cost to convert back. I would just drive it as is and keep my eyes peeled for a correct S MFI set up. I love MFI as much as the next guy but I don't think you lose any performance with the carbs and that MFI stuff is heavy.
    My .02,
    Phil
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  3. 11-02-2007, 10:02 AM #3
    RTincher
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    MFI vs. Carbs

    Eric:

    Sounds and looks (Tony's seats) like it'll be a stunner, in which case I think most people would like to have it "right" with the MFI, although I'm not sure that's a breakeven proposition for you.

    I'm a real MFI fan, and somewhat of an MFI pack rat - so I constantly look for the hard to find bits. An alternative to conversion is to locate the hard to find parts of MFI to go along with the car, saving you some outlay but giving new owner confidence it can be converted. Assuming the heads are MFI (but plugged), my list would include the unique plastic throttle bodies (Matt Blast?), the fuel lines, the cam pulley, the pump base, the fuel filter housing and mounting bracket, the unique engine tin and possibly the intake warm-up apparatus. The throttle bodies, injectors, pump, etc. are easier to locate IMO, and can be rebuilt at time of installation.

    Good luck with it, and show us some more pictures of that silver/green color combo. It sounds beautiful.

    Bob
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  4. 11-02-2007, 10:25 AM #4
    69Sman
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    Quote Originally Posted by Soterik
    OK....

    1973 911S targa.... has a non matching engine, but completely documented fresh $13K rebuild to RS specs, except it has carbs instead of MFI.

    I just don't know if I should spend the extra $$ on an non-matching engine...

    thanks,
    Eric
    Are you kidding? Gotta go with MFI, matching or not...and you know it....
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  5. 11-02-2007, 04:13 PM #5
    tfiv
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    That's a tough one. You will spend a small fortune and a ton of time getting proper S MFI back on and working. In the end, you still have an engine story.
    Tom F.

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