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Thread: Engines

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  1. #1 Engines 
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    I would like to replace my 2ltr year 2000 engine with one which is environmentally friendly. Can the forum advise on a suitable replacement.
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  2. #2 Re: Engines 
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    What do you have at present, and in what?
    I don't believe there's an 'environmentally friendly' engine out there, not even electric. It will depend on your budget/skill level and time. It can get really expensive when you factor in aftermarket ecu's, exhaust system fabrication, fuelling etc.
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  3. #3 Re: Engines 
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    Quote Originally Posted by Mickaleen View Post
    I would like to replace my 2ltr year 2000 engine with one which is environmentally friendly. Can the forum advise on a suitable replacement.
    I will definitely be following this thread with interest as I have spent quite a while mulling over the same question. My current engine is a 2L Pinto with EFi, this allows me to immediately ignore engines that others on this forum have used for engine swaps. I'm thinking 2L Zetec here. It's not a case of whether the Zetec is any good or not (I believe its very good indeed) rather its a matter of plumbing. My car is currently set up to have the fuel feed and swirl pot on the near side, perfect for the Pinto as the EFi sits that side. Unfortunately (for me) the Zetec has the exhaust manifold on the nearside. As a) I do not wish to re-plumb all the fuel lines and exhaust, and b) do not fancy having a red hot exhaust so close to the swirl pot then the Zetec gets the old heave ho. As does the Toyota 4AGE and the 2L MX-5. Bummer. A Cossie would have suited nicely, till we get to a discussion on availability and cost......

    There is light at the end of this particular narrative....... that still leaves the 2L Duratech (though this may be a touch too big in the height department) and the 1.6L Sigma. Given that the Pinto was hewn from solid granite (OK cast iron) with a corresponding amount of weight being close to the front end then low speed steering can often be a challenge (I've tried manning up but its still a challenge). An advantage in both the Duratech and Sigma (OK and also a Zetec) is the reduction of a not inconsiderable amount of weight from the engine bay and the impact this will have on steering and in turn performance.

    At this moment in time I'm veering towards the Sigma. Its compact, light and very tuneable; its very easy to get 150 bhp with very little tweaking, hence you keep the reliability and you also get the benefits stated above. Think of it as a modern day Lotus Twin Cam but reliable. My investigations also take me along the route of making things a little simpler for the fueling and ditching the EFi for carbs. I'm currently at the costing, and sitting squinting at the car wondering what else will be changed/upgraded/personalised, stage. However, a spreadsheet is in the very near future

    There you go, that's my cat amongst the pigeons.........
    2000 Marlin Cabrio; 2.0 L Burton Pinto in Ford Nightfire Red with Magnolia leather interior.

    http://www.marlinownersclub.com/wppg...&image_id=2349
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  4. #4 Re: Engines 
    frequent forum contributor Club Member stevejgreen's Avatar
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    Why not go the way that Ford Eco Boost went, with smaller capacity turbo direct injection engines, allegedly performing with 30% increase in fuel efficiency for a similar non turbo engine output power.

    Probably just as technically challenging as any of the other options.
    MOC member since 05/97
    1984 Marlin Roadster SWB.
    1800TC, Unleaded ported head, stage 2 cam. Ford Type 9 gearbox, Dolomite Sprint rear axle fitted with MGF disc brakes.
    Three core radiator, Renault Clio vented front discs.
    The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.

    Loads of Marlin Reference can be found documents here or there.
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  5. #5 Re: Engines 
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    Quote Originally Posted by stevejgreen View Post
    Why not go the way that Ford Eco Boost went, with smaller capacity turbo direct injection engines, allegedly performing with 30% increase in fuel efficiency for a similar non turbo engine output power.

    Probably just as technically challenging as any of the other options.
    Unfortunately to us in the motor trade they are more commonly known as 'eco-boom' given their propensity to self destruct. Mind you I think they are getting better.

    You do have a point mind. I'll add it to my list of investigations.
    2000 Marlin Cabrio; 2.0 L Burton Pinto in Ford Nightfire Red with Magnolia leather interior.

    http://www.marlinownersclub.com/wppg...&image_id=2349
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  6. #6 Re: Engines 
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    I have a Marlin Cabrio 2ltr DOHC engine carburettor model with a Mt75 gearbox which is in good order and performs well. I was looking at reducing the co and increasing the mpg by fitting a smaller engine and keeping the Mt75 gearbox. The Ford Eco doesn't have a good review at present.
    Advice from the forum is greatly appreciated.
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  7. #7 Re: Engines 
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    I personally have reservations about seeing any significant increases in fuel economy whatever the powerplant due to the lack of aerodynamics. Sure, you might reduce the weight and increase the bhp but ask yourself is the effort worth the expense?
    If you're doing it just for the technical challenge, I'm with you.
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  8. #8 Re: Engines 
    frequent forum contributor Club Member chris_cussen's Avatar
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    Having replaced a DOHC 2.0l on carbs with a Zetec engine I would say that moving a swirl pot and exhaust system are not the major issues.
    This thread details everything I did https://www.marlinownersclub.com/for...an-engine-swap and there was an article in a Pitstop magazine too.

    You can do it cheaper than I did but even on a budget I doubt you will spend less than £2k
    Cabrio, Omex 2.0l 150bhp Zetec blacktop, Omex ECU and wiring loom.
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  9. #9 Re: Engines 
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    Thank you all for your suggestions, a lot for me to mull over.
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  10. #10 Re: Engines 
    frequent forum contributor Club Member stevejgreen's Avatar
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    There is always the possibility if you want to retain Ford and your current gearbox.

    https://www.burtonpower.com/aluminiu...oost-bh10.html
    MOC member since 05/97
    1984 Marlin Roadster SWB.
    1800TC, Unleaded ported head, stage 2 cam. Ford Type 9 gearbox, Dolomite Sprint rear axle fitted with MGF disc brakes.
    Three core radiator, Renault Clio vented front discs.
    The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.

    Loads of Marlin Reference can be found documents here or there.
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