I installed the Lumenition Optronic Ignitioin system a few years ago.
No problems so far. About the same time, I tried the Platinum plugs,
and the combination seems to work very well. The main attraction was
not having to endlessly adjust and replace Lucas points. I was
nervous about making the switch, but the installation instructions
looked far worse than the job turned out to be. It was absolutely
textbook.
The last source I'm aware of was Special Interest Car Parts, and the
'92 price was about $121 for module and fitting kit.
>Since the digest seems to have dried up I will take this chance to start
>a new thread on the above topic.
>Let me throw this out to you LBC sisters and brothers to see if we can
>collectivly agree on what might be the best Electronic Ignition system
>to install in an MGB and why.
>I>am at a point where I need to invest in an electronic ignition for my
>current B project. I have an original Lucas integral (in distributor)
>system, I have the separate Lucas (black box under coil) and have an
>XR700 system. They all have their limitations/problems.
>The integral Lucas is *supposed to be unreliable* I have no experiance
>with this yet, other than one of my B's has the module (wires cut off)
>and the XR700 installed with the distributor. It seems to work OK?
>The Lucas external amp set up, *supposed to be the most trouble free*
>I have installed in my 79B. Every once in a while it lets me down.
>I think it is the darn car saying I am feeling neglected, 'cos you are
>spending too much time with that *old* 76! The 79 just decides it is
>not going to start until you pull off the cap, look at the rotor, then
>fiddle with wires, crank & run the battery down a little, remove a plug
>and check for a spark. Then it will start! The coil has been replaced,
>the cap, rotor, plugs and wires. Whenever I have this situation I check
>for 12v at the coil etc etc. I have replaced all the connectors, bullets
>and spades. The only thing left is the magnetic pickup coil. It always
>has continuity and never a short circuit, when I check. This problem
>occurs about three times a year, so I live with it and the pain.
>The XR700, I installed in my 72 daily driver, but removed it and went
>back to points, because I was never realy happy with the way it idled.
>The day I put the points back, it never had run as well, so I stuck
>with the points system, the module is still on the fender!
>My son's 72B has one of the early XR700 units installed, it runs like a
>champ, but mine did not. Difference in the two *identical* units, maybe?
>So now you know where I am coming from. I want to buy a new unit and I
>want one that is *reliable*. I do not like the flimsy optical pickup of
>the XR700, so I am biased away from that. The new Lucas external unit
>is too expensive. Besides I would need to get a different distributor.
>So come on folks, what should I buy? Let's keep cost below $200.
>Please give me your suggestions, from what I have read in the digest
>there are several of you that have after market ignitions, so there is
>a wealth of experiance for me to gain from. Let me know what you liked
>about your particular ignition system and why. If you can remember, let
>me know of a supplier name, phone number, model and cost.
>Thank's in advance :- john bartholomew.
Dave Etherington '73 MGB
Toronto Ontario '85 Prelude
detherin@interlog.com
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