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Thread: Mazda MX5 Engine & Gearbox

  1. #1 Mazda MX5 Engine & Gearbox 
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    Further to the discussion of engine options, and that RH don't have the new Rover engines, I now fancy the MX5 route. Has anyone actually measured up to make sure it will actually go in? Jon mentioned steering column issues, do you think these be overcome?

    I've been offered the package below from a breaker on eBay, do we think it sounds reasonable or might a whole scrap car work out cheaper?


    1800cc Engine - ?550
    Complete wiring loom and ECU unit - ?250
    Air intake etc - FREE OF CHARGE
    Gearbox - ?250
    Propshaft - FREE OF CHARGE
    any other bits you want within reason - FREE OF CHARGE
    Clutch,brake cylinder etc - ?50
    TOTAL ?1100
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  2. #2 Re: Mazda MX5 Engine & Gearbox 
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    Chris,
    It is very difficult to say yes or no to the will it fit question. I measured up "loosely" and decided that there would be no probs apart from the fuel injection plenumb chamber as it sits on top of the engine adding height which was very difficult to work out as the fit would be extremely close. However, Westfield now offer the MX5 based car which uses the engine as is with no mods to the bonnet. I would assume that if they can fit it in then so can we.
    My intention was always to buy a whole car and try to fit the IRS in as well. This would offer the LSD as standard from the 1.8 as well as discs etc...The 1.8 offers over 130 bhp which most people say is the limit for the Ital axle.
    Whilst on a roll why not try re-engineering the front suspension to use MX5 uprights and make your own fully adjustable wishbones. That would be fun!!!!!
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  3. #3 Re: Mazda MX5 Engine & Gearbox 
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    When you say 130 is the limit for the Ital/Marina axle, it's the torque rather than the bhp that is the limiting factor. My Fiat 2l engine with 150bhp on the brake has done over 15,000 miles on an axle with 40,000 miles since it was rebuilt. So as long as your axle is in good shape and you don't do standing start wheelies every time it should last reasonably well if well serviced.
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  4. #4 Re: Mazda MX5 Engine & Gearbox 
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    That's good to know. Anyway, I've changed my mind yet again! The MX5 route is bit too pricey I think so I'm going for an old 2.0 Zetec and Type 9, which are plentiful, cheap and bolt together with minimul fuss (apparaently!)
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  5. #5 Re: Mazda MX5 Engine & Gearbox 
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    Message originally posted by: Don
    Let us know how that goes, particularly the routing the steering around the inlet manifold.
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  6. #6 Re: Mazda MX5 Engine & Gearbox 
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    Message originally posted by: Lee
    Yeah I remember it well trying to get the steering around the carbs....
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  7. #7 Re: Mazda MX5 Engine & Gearbox 
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    Message originally posted by: Don
    The Duratec is the other way round with the inlet/induction on the nearside. The cosworth variant of the ford twin cam engine was also this way round, and does not need to be run as a turbo. See the Burton power web site.
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  8. #8 Re: Mazda MX5 Engine & Gearbox 
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    What about the Toyota 4age. Some of these have their induction on the nearside and RAW Engineering can sell you a bell housing for not much money.
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  9. #9 Re: Mazda MX5 Engine & Gearbox 
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    I fitted a 2 litre Alfa engine some years ago and, to get round the problem of the carbs being on the offside, I fitted an old Ford Capri steering column. This column is quite long and exits through a hole in the pedal box casting between the brake and clutch pedals. The intermediate steering shaft then runs under the carbs to the standard Marina rack. One of the benefits of this is that the steering coumn is at a more typical angle and not 'flat' as standard.
    The Alfa engine gives out a theoretical 132bhp and the car has done more than 16000 miles using a standard Marina 3.7:1 rear axle. I agree with Hugh that, providing you don't try rubber burning standing starts at the lights, this axle should be ok.
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  10. #10 Re: Mazda MX5 Engine & Gearbox 
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    I am in the middle of fitting the 1.6 MX5 NA engine, gearbox and all relevant/necessary electrics. Have made up an altered steering shaft with two additional UJs and a captive bearing to route round the MX5 Master Brake cylinder and intake manifold, mated to the MX5 pedal mounting brackets. Also deleted the servo as space in the engine bay is tight. Also have to source a custom pressurised fuel tank and custom exhaust manifold.


    Quote Originally Posted by artrider50 View Post
    Further to the discussion of engine options, and that RH don't have the new Rover engines, I now fancy the MX5 route. Has anyone actually measured up to make sure it will actually go in? Jon mentioned steering column issues, do you think these be overcome?

    I've been offered the package below from a breaker on eBay, do we think it sounds reasonable or might a whole scrap car work out cheaper?


    1800cc Engine - ?550
    Complete wiring loom and ECU unit - ?250
    Air intake etc - FREE OF CHARGE
    Gearbox - ?250
    Propshaft - FREE OF CHARGE
    any other bits you want within reason - FREE OF CHARGE
    Clutch,brake cylinder etc - ?50
    TOTAL ?1100
    Up from the ashes grow the Roses of Success !
    Reply With Quote  
     

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