1jz coils on a 7mgte, tech questions

[bigaaron]

I was thinking about putting 1j coils on my 7m for a long while and I did the install last night. I wanted to do it to get rid of the coilpack and spark plug wires, and also make spark plug changes easier. Asthetics and functionality of the cop setup.
It fired right up and idled better then the 7m coil pack ever did. It revs up nice and I thought everything was great....... till I hit boost
Under boost it bogs badly like it has not got enough spark. I think that the 7m ignitor is not able to sink enough amperage for 3 parallel 1j coil pairs.

The 1j ignitor has 6 inputs from the ecu (+5v) and 6 outputs (ground) to the coils. The coils all have a 12v wire from ignition on both 7m and 1j engines. The ignitors ground one side of the coil to fire it. So I figured since the 1j coils are close to double the resistance of the 7m coils, I could just parallel 3 pairs for cyl's 1&6 2&5 3&4, and run it with the 7m ignitor, which I did.

Now the problems...
The 7m ignitor outputs seem to be multiplexed. Look at the ignitor test procedure in the tsrm. Also notice that the 7m ignitor outputs are not a,b,c or 1,2,3. They are iga, igb, igt and igf is the tach output. So my options seem to be this:

a) parallel the INPUTS of two 7m ignitors and run one 1j coil off of each of the outputs. This would take care of the wierd 7m ignitor inputs, and the paralleled ignitor input current draw should be very low since it is logic level.

b) get a 1j ignitor, parallel 3 pairs on the input and run 1 coil per output. Problem is, the cost and how to make it work from the 7m ecu outputs???

c)put it back to stock and admit defeat. (c is not an option)

I am going to be researching this further but any ideas?

[Jeeves]

The 7M uses a wasted spark system if I recall. However, other than that, I'm not sure I can help much. The 7M's (turbo) ignition system is strong til past 700hp, it's been proven and shown that there's no real reason to upgrade/change if it's not for astetics (sp) purposes. Personally, I'd switch back to the 7M coil pack system, but that's me and I like going with what works.