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Thread: Lotus Twin Cam Dizzy Wiring ?

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    Lotus Twin Cam Dizzy Wiring ?

    Bought a new engine for my mk2 van !

    It has a "Lucas" "Lotus Twin Cam Distributor".

    Im a little unsure on how to wire this up as both wires are red and i havn't seen this type of electronic ignition before..

    Im also unsure if it need a module to use it.

    Do i use it with a 9 volt coil or a 12 volt coil

    Can anyone help ?





    Regards Andy

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    Re: Lotus Twin Cam Dizzy Wiring ?

    I have something similar on my car, mines form Lumenition but works on this rotating magnet principle.

    The two wires on mine go to a 12v ignition live feed and the LT side of the coil. My wires were black and red and I had fitting instructions, so I guess you'll have to try it and see. I think the red box is just a switch so depends if the electronics are damaged if it's connected up back to front.

    You need to use whatever coil suits the rest of the cars electrical system. 9V if balasted and 12v if not balasted.

    One other thing, check the maximum advance once you have it running as if it's a genuine TC dizzy (as opposed to a properly built for a x flow one)it won't have as much maximum advance as the x flow needs. This was a common swap (TC dizzy must make a x flow go faster type of thing) but the advance is not the same. Having said that I've just spent a while looking through all my books and I can only find maximum advance figures for the TC - even the Ford workshop manual for the MK1 which tells you how to test a rebuilt dizzy on a test machine doesn't give a maximum advance figure. Guess they figured they'd only be using x flow dizzys in x flows.?

    I was quite impressed by mine, better starting and almost rock steady timming on a dizzy that really had seen better days - with quite a lot of timming scatter on points.

    HTH

    David

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    Re: Lotus Twin Cam Dizzy Wiring ?

    You will need a special Lucas-ignition box for this kind of magnetic sensor. Think its a RILA-type. A Lumenition box will not be any good. Maybe you can use a ignition-amplifier from a 1.6 OHC Pinto, it's sort of the same. I have a Lucas dizzy with that same sensor in a box somewhere.

    Leon.

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    Re: Lotus Twin Cam Dizzy Wiring ?

    I had a look at the Aldon Automotive website and Im getting a little closer now,

    The part no. on the dizzy is :-

    43D4 -> 2687 103FXYS

    It is a Aldon Dizzy and the 103 FXYS is a code for a Aldon Dizzy with side exit cap to suit various cams from A2 to Piper 285's etc on the x flow engine using sidedraft Carbs.

    So its the correct dizzy for a xflow.

    The red electronic ignition system you can see is called a Aldon Ignitor system, it is designed to replace contact breaker ignition systems.
    The system fits entirely inside the distributor with no external module.
    It is designed to work with points type coils and will work with any voltage from 6volts to 16 volts.

    The new Aldon Ignitor ignition systems have two wires one red and one black !

    Only problem is mine has two red.

    Also im not intending to use sidedraft carbs

    Looks like a phone call to Aldon Automotive might help with a bit of luck.

    Thanks for your help Andy

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    Re: Lotus Twin Cam Dizzy Wiring ?

    It's not a Aldon Ignitor ... if it's not a Lucas magnetic reluctor type thingybob-ignition I will eat my underpants.

    Leon.

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    Re: Lotus Twin Cam Dizzy Wiring ?

    Miniliteman,
    Do you know if you can fit a Lumenition optronic ignition to this type of distributor as i have one sat here doing nothing with a xflow mounting plate which you would normally fit to a standard dizzy with a 12 volt coil, and a non ballast feed of 12 volts ?
    Other than that I will contact Aldon Automotive when i get chance, i can't find a email address on there website so it will have to be by phone and let you know the outcome.

    Andy

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    Re: Lotus Twin Cam Dizzy Wiring ?

    Yes you can fit a Lumenition to a 43D4 Lucas dizzy, I have here a 103 FXYS distributor from Aldon as a spare fitted with an optronice Lumenition eye. What you need is a FK117 fitting kit from Burtons or Aldon, it has the vane in it for your type of distributor. But you would need the optical eye as well, and an amplifier from Lumenition either a PMA one (silver colour) for a std 12Volts type coil, or a CEK150 one (black) which has to be used with the Lumenition coil.
    iJust call Aldon and ask for the distrubutor guy, can't remember his name now, but he knows what you need.
    Oh and do not trust the Aldon sign on the dizzy, maybe people have been tampering with it after it left Aldon .... so always check with Aldon or check it yourselves.

    Leon.

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    Re: Lotus Twin Cam Dizzy Wiring ?

    Miniliteman,
    I have got a full new optronic kit and a fitting kit for a xflow dizzy, my idea is to buy the FK117 kit for the aldon, fit the new optronic kit to my mk1 escort (which only has new parts on it ) and fit the old optronic kit which is on the mk1 onto my mk2 van with the FK117.

    My last question is :- is it worth fitting this aldon dizzy to a xflow which is only going to have a 32/36 dgav carb fitted?

    Thanks for your help

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    Re: Lotus Twin Cam Dizzy Wiring ?

    Ah right so you are not going to use twin webers but the standard carb ... then I would not use this Aldon dizzy. As per the Aldon-website it is for a X-flow engine with a not cam and twin carbs. When using the std 32/36 carb I would advise you use a distributor with vacuum-advance otherwise you will loose on the mpg-side and probably as well on the bhp-side.
    Maybe you can have that distributor modified by Aldon with a vacuum advance for your engine. Again (no I am not involved with them, just a happy customer) check with the Aldon-distributor-person he will give the perfect advise on what to use.

    Leon.

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