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Old 08-11-2017, 02:08 PM   #16
pompeyal
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Originally Posted by lsdweb View Post
Sorry for resurrecting an old thread but does anybody have any photos (the ones above have disappeared) of the specific COP used. I've got VW COPs but not sure if they are the right ones for my B18 - the plug tops (screw on caps) appear to be too small for the COP - I could try a different plug top I suppose?
Pictures gone with courtasy of photobucket wanting loads of money, they screwed my diary and probably many others that used photobucket to host their photos, does anyone know of a free photo hosting site???
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Old 08-11-2017, 02:46 PM   #17
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Originally Posted by B20C5 View Post
Hello gents! I just wanted to share this bit of information for those of you who are running Honda B-series VTEC engines...

If you have ever thought about converting to a COP system, or have already converted and are not happy with the fitment of the coils you have selected, this might be of interest to you.

I have recently discovered that it is possible to modify an Audi/VW coil to fit perfectly on a Honda B-Series VTEC head. Once the modification has been performed, the coils fit correctly on the plugs and seal completely in the valve cover. They are designed to hold onto the spark plug heads, so it is not necessary to bolt them down or use a cap to hold them in place, which is very convenient.

The coils I used were pulled from a 2002 Audi 3.0l V6.

1.) Using a razor blade, or similar cutting device, remove the lower seal from the coil assembly.

2.) Push the coil assembly onto spark plug.

3.) Wire the coil(s) to your engine management system accordingly.









~original added
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Old 08-11-2017, 02:46 PM   #18
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Originally Posted by B20C5 View Post
Alright then, here is some more information:

The outer diameter of the sealing area is 32.75 mm when uncompressed. The minimum compressed diameter that can be had is 31.00 mm. I have attached a photo with a measure, as the exact length you may need could vary a touch.

As for the wiring, the coils have the pins numbered inside the connector. I have attached the factory track diagram which shows the pin functions as follows:

Pin 1: Switched 12V supply
Pin 2: Signal ground
Pin 3: ECU signal (0, +5v)
Pin 4: Coil/plug ground

When wiring the coils, I would personally suggest grounding the #4 pins directly to the head and routing the #2 pins to the same grounding location that your ECU is grounded to. Pins #3 will be wired to the coil outputs of your ECU, and can be configured for wasted spark if your ECU only has one output per pair of cylinders.

When setting up the ECU:
Cranking dwell= 3.0 mS
Nominal dwell= 2.6 mS
Spark Output Inverted = NO (if your ECU has this option)

I am using an AEM 30-1060U ecu, so for me it was just a matter of configuring 3 additional pins in the software as coil outputs and telling the ECU to fire them sequentially. Hondata offers a solution that works with their S300 systems (Hondata CPR). I am not 100% sure how they configure their software, so I cant be sure if you could use their box with CROME or NepTune. I know that some versions of MegaSquirt have multiple coil outputs available too. I could also imagine this working with the Haltech, Motec, ETC....

Enjoy!



~original added
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New subframe fitting has begun - slowly

Build Thread - Standard Round Nose with K series subframe build begun
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Old 08-11-2017, 03:05 PM   #19
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Also note that if you run Chrome as a Browser there is an extension you can download that will cause the Photobucket photos to show up
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New subframe fitting has begun - slowly

Build Thread - Standard Round Nose with K series subframe build begun
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Old 08-11-2017, 03:39 PM   #20
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does anyone know of a free photo hosting site???
just qwick one pomp, i found IMGBB, i find it simple, i tyed others but my phone wouldent download them
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Old 08-11-2017, 05:07 PM   #21
lsdweb
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That's brilliant! Thanks everybody! I use Chrome so will try the extension too.
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