Tuner pulled a rabbit out the hat made 528whp and 389lbft @21 psi. He going to throw some more fuel in which may decrease the final numbers some but it will be rock solid with no issues.
on my s15 subharness there are 2 wires that are looped out and i have to use both to get a timing light to work. so maybe its a case of having to use multiple wires off the number one coil.
the 20v coils that i have are 3 wire, and from what i've seen online s15 coils are 3 wire as well. from what i recall i was looking at a s15 schematic that also had the same symbol which was refer...
http://i15.photobucket.com/albums/a392/hypertrophyone/s15coil-1.jpg
the S15 SR20det COP is the correct coil to use. It fits the spark plug galley of the VE head and accepts the spark plug correctl...
they make a test light for coils that u can use to do this trick. it shows you when the coil fires and its a regular plug wire so u can attach a timing light to it.