Thread: How To: Modify GSX-R Coils

If you are taking the plunge into Coil-On-Plugs, this guide should be of some help to you. In my opinion GSX-R coils are the perfect choice for the FWD SR20. They can be picked up on Ebay for less than 50 dollars with a harness. You need the harness for the clips. Any motorcycle harness that uses DENSO coils will work. You can also elect to purchase the clips from AEM.

The reason I say these coils are perfect is because they are the right height and also have large insulation to make a proper seal on your valve cover.

However one basic modification is needed before use. The insulation is a bit too thick. You need to remove the top half, so you can slide the insulation up a bit more so the coil can make good contact with your spark plug.

I used a razor blade and went around the coil.

Before:



After:

Thank you very much!

I take it you DONT use those scissors for your wiring job?

You don't like my electricians scissors?

I use them for cutting heat shrink and wire loom

i have a set of scissors like those comes in perfect for those wire jobs!!!

does it matter what year of gsx-r they come out of? r all of them the same?

nvm i just found the info:
Found on:
2006 Suzuki GSX-R600 motorcycle
2006 Suzuki GSX-R750 motorcycle
2007 Suzuki GSX-R600 motorcycle
2007 Suzuki GSX-R750 motorcycle
Likely more years and models

Looks interesting, but I don not understand why I would want this mod?

You probably don't want this mod. Frankly, our stock ignition system is plenty good enough for most people.
For a good start at how and why COP is different you can start here: http://www.sr20-forum.com/howtos/26073-inductive-coil-tech-coil-plug-cop-tech-more.html

nice.
what did you use to block off the distributor?