About

This is the story of my Marcos Mantula. Over thirty years and it’s never been driven. That’s all about to change.

The build re-commenced in September¬†2014. It won’t be a quick process as I have to undo quite a lot before I can move forward.

Ian

6 thoughts on “About”

  1. Hi mate,
    I’m a kit car builder in Australia, and I help other people with their projects too. I’m originally from Cornwall, and I own a Dax Rush V8. I’ve got a thor inlet, and I was hoping you would share the CAD file for the single to twin throttle design that you’ve drawn up?
    My email address is attached below.
    Cheers,
    Treeve

    1. Hi Treeve,
      Yes I can share the CAD file for the Thor inlet. However I have come to realise that there is a serious flaw in the design. It needs a balance plenum between the two throttle bodies because the current design would be too restrictive. I’m going to draw that up in a few weeks. After that I will share the design with you.
      Cheers
      Ian

  2. Hi Ian,
    I have just had to remove the engine from my Mantula due to the engine freezing up and popping the core plugs, damm , now hoping the blocks ok. what i was interested in was looking at your pictures you managed to get the engine out with the mounts still attached, when i tried that the entire car lifts and the mounts wont release from the chassis,do you have a special technique or does it just come out with enough force? . I like the look of the inlet manifold in my case i have just added a megasquirt for the fuel and ignition and can recommend a much more aggressive advance curve for the ignition, transformed the engine response. Good luck with the rebuild my chassis needed major surgery.
    Colin

    1. Hi Colin,
      For the engine mounts, I simply cut a shallow V in the chassis mounting plate. This will be kept stable by a bolt-in closing plate. When I was originally building the car I was forced to take the engine out several times due to clutch operation problems. I found it really tricky and potentially dangerous to unbolt the mounts from the engine first.

      Thansk for the nice comment regarding the inlet manifold. I may have to discard that as I need to join the two plenums according to Rover V8 folklore!

      Ian

  3. Hi I am trying to 3d print a Marcos Mantula for a friend (he has one) I was wondering if you could supply me with a 3d model of the car if possible?

    Cheers

    1. Hi Sam,
      I plan to do the same thing once I’ve scanned the body lines, but this won’t be ready for a few more months. The chassis drawing is almost complete and I’ll be sharing that soon. Let me know if you do find a good 3D model of the Mantula bodywork it would save me many hours!

      Ian

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The 35 year build