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Thread: 308 Engine and Box

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    Site Supporter ProtoTipo's Avatar
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    308 Engine and Box


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    Re: 308 Engine and Box

    Could do with a spare, how about some crowd funding?
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    Re: 308 Engine and Box

    No prob Struan, I'll chip in 10p towards a spare wheel for ya

  4. #4

    Re: 308 Engine and Box

    Thank you, any advance on 10p?
    Struan
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    Gang aft agley

    Virtutis Gloria Merces
    www.jadefarms.com

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    Re: 308 Engine and Box

    My experience, having bought one from a bloke in an alley in Manchester some years ago, is that there is no such thing as a cheap 308 engine. Mine was a QV and the rebuild cost (even then) eclipsed the purchase price. Which is why it's still in bits. And this one is not cheap, especially without the twin distributors and the induction tackle (I presume that if it is ex-Mondial, it was Bosch K Jetronic injection, rather than carbs?). Looks like a world of pain to me...

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    Re: 308 Engine and Box

    Quote Originally Posted by maxlouis View Post
    My experience, having bought one from a bloke in an alley in Manchester some years ago, is that there is no such thing as a cheap 308 engine. Mine was a QV and the rebuild cost (even then) eclipsed the purchase price. Which is why it's still in bits. And this one is not cheap, especially without the twin distributors and the induction tackle (I presume that if it is ex-Mondial, it was Bosch K Jetronic injection, rather than carbs?). Looks like a world of pain to me...
    Exactly my thoughts too, the K-Jetronic generation is not a great one, low compression, sodium exhaust valves, K-Jetronic injection, small inlet valves etc. To change the pistons and liners, swap to stainless valves (larger inlets) & fit uprated cams comes to about £6500 plus vat plus the rebuild labour. Then add on to that some decent induction, maybe an ECU and a rolling road session and you have just passed £20k for an engine that make approx 300Bhp. It will obviously look and sound fantastic however.

    The engine shown looks slightly different to the '81 Mondial motor we have which made me wonder if it was a 308 variation instead. The engine steady bracket on ours was a separate piece rather than cast in and this engine has a port or fitting just above each of the exhaust ports which ours does not?
    Last edited by Strat Fan; 16-03-2018 at 10:00.
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    Site Supporter ProtoTipo's Avatar
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    Re: 308 Engine and Box

    Quote Originally Posted by Strat Fan View Post
    The engine shown looks slightly different to the '81 Mondial motor we have which made me wonder if it was a 308 variation instead. The engine steady bracket on ours was a separate piece rather than cast in and this engine has a port or fitting just above each of the exhaust ports which ours does not?
    Might it be a U.S. spec. motor Craig?

    I had no idea Mondial 8s had twin distributors. 'Seems a bit retrograde? As in, back to the Series 1 GT4.

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    Re: 308 Engine and Box

    Quote Originally Posted by ProtoTipo View Post
    Might it be a U.S. spec. motor Craig?

    I had no idea Mondial 8s had twin distributors. 'Seems a bit retrograde? As in, back to the Series 1 GT4.
    Twin coil, twin ign pack and twin dizzy.
    Click image for larger version. 

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    It's the only one I have experience of so I can't comment on others
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