Hi guys,Was hoping some further progress might have been made on honing dual ignitor 4G63 ignition. My Eclipse has been on stands for approaching a year and a half with the intent of upgrading the cat-back exhaust and trying to install a higher flow larger than OE SMIC. Unfortunately...

Please let us know what you actually implement and how it works out. I think this thread and its readers are best served by the accumulation of trials and results. I've no problem with you achieving better results than I, just let us know -- thanks !

Kind of disappointed by the complete lack of response ! To be honest, it's not clear whether it's better to go dual OE transistor module or hot wiring from the battery to the COP primary. (An Intrepid tech with professed plenty of time behind a scope said that 8 Amps should be enough, but this...

Quoting TrevorS: Replaced the cracked rear transistor pack connector and returned the ignition transistor pack ground to the harness. Still draws more current at idle than OE (guess not a huge surprise), but not as bad as before. Got to scope it to see where I'm at!My neighbor was kind...

Quoting TrevorS: Took the car for a run and then measured the COP module temps. Coil 120F, COP plate 140F, valve cover 170F, outside ambient 85F. Typical COP temp rating seems to be 120C (248F), so I think the COP margin should be fine. However, I notice the battery is discharging faster than...

Quoting TrevorS: I've moved coil power completely out of the OE harness and with the heavier shorter wiring, there ought to be greater spark energy, so my main concern is operating temps. The heat sink assembly is clearly keeping transistor temps well down, but I still have to verify the COP...

Quoting Broxma:To ride along with one of the things you mentioned in the last post, about the way the Intrepid coils each see battery voltage...One of the changes I am going to do to the setup I run on the Nissan is run the power wire off a relay. Since the positive wire at the harness is...

Quoting TrevorS: If I can get a scope on the coil battery line I should be able to learn more about load behavior.Installed my curent sampling resistance at the relay today and idled the engine while trying to take measurements (the mosquietoes loved it ).I tried two different...

Quoting JNR: Thanks for the update and keep us posted on long term reliability and all that...The main reliability question for me was whether there might be issues associated with doubling up the transistor packs -- either at the packs or COP modules. However, the successful long term...

Thanks for posting JNR, I've found the level of participation in this thread discouraging. In fact, my continuance of it is entirely out of respect for "CheekyChimp", "Curtis", and yourself. I surely hope you find it helpful.The only significant wiring change is that associated with COP Vs...

Received another J722T, sanded it, and tested it in the car -- it works and I've installed both into a revised heat sink assembly with heat sink compound.Installed the transistor pack assembly, reconnected the COP and battery, and fired it up -- caught instantly (as in instantly )! Took it...

Picked up some 14AWG yellow and red wire today with view to possibly upgrading the primary drive from the transistor packs to the coils including the #2 to #3 wire (downside being it blows the OE harness color coding ). Trouble is, I really don't know where I'm at, only that with a single...

Just checked with Rock Auto and I'm seeing over $100 apiece -- far too much for me. Will just have to see how things go.

Unfortunately, retail is consistently much more expensive than used ! Surely there are enough discarded '91 through '99 transistor packs out there that an experiment of this sort shouldn't require an arm and a leg ! I've seen posts on this very thread where posters were willing to provide...