Thanks Andrew, maybe your diagram should be added to the Megajolt how to.

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Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto

great idea, consider it done

hmm might have to get me one of those excel coil packs! It doesn't look that much smaller in the pic... but could be the angle. Nice that it takes standard leads!

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tim
68 Deluxe 1293, HIF44, megajolt/EDIS4, daihatsu alternator..

'a mini is for life, not just for christmas!'

It is probably about the same length, but slightly narrower. I wouldn't bother fitting it if all you wanted was a smaller coil pack, the difference is not great. The main reasons I used it were easy availablity in Australia (Most Repco/Bursons will stock them, Plenty in the wreckers) and the fact it takes normal leads! I had the Mondeo coil pack on for 1 day before I got fed up with it!

You could probably use numerous other coil packs, Have a look at this (towards the end of the pdf):
http://www.aca-auto.com.au/pdfs/Engine-coils.pdf

I found that out of all the 4 cylinder wasted spark coils, the Hyundai's are the most common. I think the part number I'm using is C154, although there are quite a few other part numbers with the same coils, just different connectors and brackets.

Andrew

THREAD REVIVAL.

I went to go and buy a new EDIS coil yesterday and figured that the local Ford dealer would have one. I was told that the part for the auto 1995 Mondeo is NLA through Ford. Repco blankly looked at me when I showed it to them.

Thought some people would like to know - I ended up substituting an Excel coil as pictured and it has worked really well for the 50kms that I've done on it so far. Many thanks to afh001 otherwise I never would've thought about it - plus it looks better too! Ultimately if you need one in a hurry, don't count on Ford - looks like it might be an order from America if you need a spare.

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"In two years time your car will be like a lady's clothes, out of date, my car will still be in fashion when I am dead" - Sir Alec speaking to Pininfarina

You may be able to also buy parts from here

http://trigger-wheels.com/store/contents/en-uk/d33.html

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1969 Cooper "S"
1967 Mini Deluxe
1973 Clubman Van (the fleet spare)
1978 ex 1275 LS ("Wizard" Eaton Supercharged)
2015 HSV GenF GTS(occasional drive & tow car)
2019 MINI F55 Cooper S

Theres no point in using the EDIS system at all anymore. Modern mega-squirt/jolt/whatever can drive coils directly and the best way is one coil per cylinder, do away with the leads entirely.

For whatever reason you still want to use the old EDIS system.
I would like to see some numbers on the excel coil, particularly the dwell angle as well as the resistance. Its not as simple as putting on any old coil.

Ive heard of many SR20/CA18s that have been killed when people tried to cheap out on coils.

Limp home modus, excellent VR conditioning, easy to replace if a coil driver fails, you can place the high power switching far away from the ECU to keep noise low, no way the wrong settings could fry the drivers.

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Rover 214 atm ....

All of those features are in a mega-whatever already, plus its a lot cheaper to replace a failed coil driver.

so if a mega-whatever fails you can drive home with a steady 10° before TDC ignition? maybe i made something wrong, but i had to tow my cars home, except the carb'ed one with the old EDIS modul.
most mega-whatever PCBs could/should have been made better regarding noise, getting worse with internal ignition coil drivers fitted.
sure its cheaper to replace just a driver, but not easier than unplug the old und plug in the new one. not everyone can (or should) use a soldering iron.
don't get me wrong, i like mega-whatever very much, playing with megasquirt since MS is comming with the 2.5bar pressure sensor as standard.
but as i work with MJLJ since the V2 came out, too, i still think as ignition only it's hard to beat

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Rover 214 atm ....

megajolt is a cut down megasquirt with all the unnessacary stuff removed and repackaged.

essentially they do exactly the same job, although MS2 and MS3 will be more accurate for that last 0.1 hp but cost a lot more too.

I believe all versions of Megajolt require an EDIS module, so no chance using coil on plug, unless you go wasted spark, but that seems a waste of time.

I run a Megasquirt 2 V3 and still run an EDIS, Why? I prefer having the coil drivers externally, I like the fact that EDIS has the limp home mode, It's in a rugged weatherproof package (so can be mounted in the engine bay) and I have a few on the shelf, so on the unlikley event that one blows up, 2 minutes unscrewing the EDIS and swapping it, Bit quicker than swapping the BIP373 coil drivers inside the megasquirt.



Dwell angle is a bit of an old school expression, as it refers to distributor degrees, which is a bit hard to use if you don't have a distributor! Usually with modern computer controlled stuff it is expressed in milliseconds. The dwell time I used for the ford coil was the same as the excel coil as it is controlled by the EDIS module, not the MS/Megajolt, The EDIS knows no different what coil is attached to it, so it dwells the coil the same amount of time. I've had no problems with that, never missed under load and the coil never got hot. I know you can calculate dwell using the coil inductance, resistance and other things, but it's all a bit academic when you can't change it anyway.

Primary resistance? Can't remember, I do remeber checking it and thinking it was seemed close to the ford coil. I ended up taking the "suck it and see" approach.... I figured I have the excel coil, spare EDIS modules, whats the worst that could happen? A blown coil or a burnt out EDIS? Not a huge loss. Seemed to work out in the end anyway. Drove my car for about 2 years with it on there, even to Hay and back, never missed a beat.



Ummm... I'm not sure what you're referring to with "Mega-whatever", but if its megajolt, yes you are correct, it does have all those features as it runs EDIS.

I don't really see any point for most mini owners to be running out and buying anything better than a megajolt if they just want to run it for ignition. Yes, Megasquirt 2 and 3 have lots of nifty features, but most are a bit pointless if your just running it for ignition only. Doubt you'd make any more power on a carb fed mini using Megasquirt 3 over Megajolt, and its less than half the price and half the complexity.

Andrew