using a "coil pack" ignition

[jonesb930]

Ok, I received my Porsche COP Beru coil. The biggest issue I see is that the coil part and mounting holes are not flush with the valve cover. The spark plugs are not perpendicular with the surface of the valve cover so some sort of adapter would have to be made to properly secure the coils to the valve cover. Also the PORSCHE logo on the uppers adds to the problem. I can now see that a full billet valve cover with proper mounting points would be optimum. I have not tried them on the lower plugs of my Twin plug engine yet.

As for the Denso coils, I wonder if the spark energy is sufficient to fire off a boosted engine properly? The coil is rather small on those.

[svandamme]

Does anybody know the Kawa Part number for these Cop's?
And what are they normally going for new?


Are they sensitive to plug fouling when used in an engine with rich mixture ( like MFI)

[safe]

Originally Posted by safe

Thr Kawasaki coils are nice and looks snugg, but I'm still skeptical. Has anyone of you read the service manual or other Kawasaki information?

I'm quoteing myself.... Highlighting the important stuff in red, cause I haven't seen many EFI systems capable of powering a coil with more than 12 volt....

[WERK I]

Originally Posted by safe

I'm quoteing myself.... Highlighting the important stuff in red, cause I haven't seen many EFI systems capable of powering a coil with more than 12 volt....

Thanks for the manual pages. The unknown factor is the Item 'C' (Peak Voltage Adapter) mentioned in the procedure. This adapter reduces the voltage output so it can be measured on a standard analog VOM. It's probably in the area of 300-400:1 reduction to get 85 readout on the VOM.

[Peter Kelly]

Originally Posted by WERK-I

Thanks for the manual pages. The unknown factor is the Item 'C' (Peak Voltage Adapter) mentioned in the procedure. This adapter reduces the voltage output so it can be measured on a standard analog VOM. It's probably in the area of 300-400:1 reduction to get 85 readout on the VOM.

Are you sure about that? My guess is it is some sort of "peak capture" circuit to grab and hold the peak voltage so the meter can read it. Most multimeters use a integrating A/D converter that takes in the range of 1/2 second to get a reading,

[WERK I]

Originally Posted by Peter Kelly

Are you sure about that? My guess is it is some sort of "peak capture" circuit to grab and hold the peak voltage so the meter can read it. Most multimeters use a integrating A/D converter that takes in the range of 1/2 second to get a reading,

No, not really sure. I just noticed that the illustration showed an analog volt meter which are pretty basic. You may be right that it is some kind of peak-and-capture circuit.

[ahdoman]

Am I ever glad I started this thread! I've been soaking all this up. You guys are amazing. But, I'm still trying to figure out from the replies if anybody has actually got a running system from using the Kawasaki coil packs. If you do can you please post a detail of the components and wiring? If the data is clear enough I'd be happy to generate a wiring schematic.

..................maybe I need to start an FI thread now.

[billjam]

I am still tossing up which way to go with my COPs on a 964 engine. I'd love to see a few more pics of some setups on any engine.
My current options are to go with the Audi coils (questionable reliability) or Toyota coils ($$). I also don't have enough technical info on the Toyota coils to commit just yet even though I have already scored one set of six for free.
Whichever coils I use, they will be driven by Megasquirt ECU so I want to stick with something that will work with a 5V or 12V signal.

So, any updates on COP applications?

[al lkosmal]

Originally Posted by oemexp

They are the later type that come from ~2005 ZX600 bikes. Here's an ebay link for a set of 4 for $45.

http://cgi.ebay.com/ebaymotors/05-Kawasaki-Ninja-ZX-600-Ignition-Coils-ZX600_W0QQcmdZViewItemQQ_trksidZp3286Q2em20Q2el111 6QQitemZ220161484245

I've collected boxes of them for my race engines and they work great.

The Iridium plugs that come in the "R" version of these bikes are also very good. They are 10mm plugs so you have to weld up the plug hole and re-tap. The heat ranges are very cold for high compression and you can get more compression with 2 of these small plugs in the head. The plug relief volume is much smaller.

I'm currently building a GT3 motor for my 914-6 race car so I guess I'm going back to grown-up sized plugs. I'm still going to use the bike coils with my Electromotive controller.

Mark

Mark,
Can you show/explain how you are driving these Kawa coils? Unless I am interpreting this incorrectly, the manual shows that they are driven by fairly high voltage (88VDC+). Can you share with us how you provide the primary voltage or is there another way......or did you just provide 12VDC and they worked?
Pix?

Regards,

Al

PS: I've got a box of these too!

[billjam]

+1 on the operating voltage for the ZX600 coils.

This issue has been raised earlier in this thread (and others) but no-one has ever described how they need to be hooked up so I crossed them off my list.

Anyone with a wiring diagram to share will go on my Xmas card list for next year.

[James Brown]

Al, have you tried to get a 12v signal to the COP with a plug installed to see if it fires? I might make a test stand to get all the components working prior to changing out my system.

[shbop]

signing-up.

[al lkosmal]

James,
I have not done that yet, but the thought has crossed my mind, as well. I need to finish my current project, but that one is working itself up in the que. Let me know what you find out..and/or if you need help, let me know.

Al

[James Brown]

I'm going to try one, there cheap and if it works, i'll go for it also

[al lkosmal]

James,
I have extra(s). I'd donate 1 or two to the test, if that helps.
Al

[billjam]

Gotta keep this thread alive. C'mon guys, let's see your COPs. Pics, details, wiring, mounting, ...

I have just tested one of the Toyota coils I might use.
These coils have four wires. Two are a little larger so I assumed they were the 12V+ and 12V- to power the coil.
By default, the other two wires must be the signal from the ECU. I had a guess as to which was +ve and which was -ve. Got it wrong but fortunately it didn't do any harm to the coil. It just didn't fire when the signal polarity was the wrong way around.
My other gamble was whether the signal was 5V or 12V (or 88V!).
As it happens, the coil seems to work fine with 12v signal.

To test, I hooked up the two coil power wires direct to a battery and also earthed the coil's -ve signal wire. I connected a metal file to the battery +ve and then lightly stroked the coil's +ve signal wire along the file.
This produced a nice fat continuous spark.

No rocket science here, but now I know that my Toyota coil seems to work OK with 12V signal and hooking it up with reversed polarity doesn't fry its innards.
Al, James, I hope this gives you some ideas.

[al lkosmal]

Bill,
That is great and the results look positive. Thanks for that and please keep us updated on your testing. I am focused on finishing my 71E project, but after that I will be turning towards this.

al

[BoxsterGT]

I would like to try the Kawasaki Denso coils as the fitment is so good.

Has anyone done further testing done on these?

[al lkosmal]

Originally Posted by BoxsterGT

I would like to try the Kawasaki Denso coils as the fitment is so good.

Has anyone done further testing done on these?

The KAWA coils that I have purchased have a Mitsubishi logo (3-diamonds) on them.

[Phoenix-MN]

The Kawasaki coils that I picked up have the Mitsubishi logo (3-diamonds) on them also with a part# 61560 / 7125