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???
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 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:
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.
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....
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
just qwick one pomp, i found IMGBB, i find it simple, i tyed others but my phone wouldent download them
I'm not sure what happened to Photobucket, but I would like to thank OZ for the thorough and complete restoration of this information. Although the ignition system seems like one small part of the engine package, it plays a very important role in the performance of the engine package as a whole.