Outback Jack 6,352 Posted July 8, 2021 Ok, this should be of help to some of you.... MSD module is being used just as a Spark Multiplier.Set to ECU on MSD as the Trigger.Zero the curve.Old Coil - is the Trigger for MSD white wire.Old Coil + is the 12v for the small red switched 12v wire for MSD Put motor into timing mode or cut SPout wire, then set base timing to 10 degrees BTDC. Reconnect SPout wire to TFI or take out of timing mode. Done. Have come to the conclusion after putting in a few timing curves....I am never going to be able to match the fluid dynamics of the EFI system with a static timing curve.The two were fighting each other. So if you just want better Spark and are keeping the EFI with ECU....Just buy a normal 6A and a Blaster SS coil and MSD leads.Save the extra money. If you are going carby/ turbo/ charger or NOS, then 6AL2 all the way. I was triggering direct from the PIP wire to the MSD via White/blue wire and a cut SPout wire, running a curve on MSD and timing locked at dizzy at 40 degrees BTDC. I was also alerted to the fact that the EFI also uses the PIP signal and tapping into it can degrade/ lower the voltage/square wave to the injectors, causing problems. Triggering from the ECU is way easier and the performance is pretty good with a mild cam. At least you know the two are matched.I bypassed all the ignition wiring at first trying to isolate my miss.But the ignition wiring is not the culprit.It missed when using completely different wiring.So then I knew It was fine to trigger from the ECU. I'm sure with a MAP sensor on the MSD you could get better results, but the ECU is already doing that, so hooking into it is a no brainer. Few shots of the MSD set up.... I just got mine hooked up and running properly...... https://youtu.be/Cg0vDAUw_KA mwahahaha..... It lives! Sounds OK for a Mild 4.0L sohc. 1 1 bear351c and Ando81 reacted to this Share this post Link to post Share on other sites
bear351c 10,260 Posted July 8, 2021 Thanks Jack. You've put such a lot of time and effort into this project, not just for yourself, but sharing your efforts (both good and bad) to help others. Good onya bro.. 1 Outback Jack reacted to this Share this post Link to post Share on other sites
Outback Jack 6,352 Posted July 8, 2021 Thanks Jack. You've put such a lot of time and effort into this project, not just for yourself, but sharing your efforts (both good and bad) to help others. Good onya bro.. Hey Bear , I find it interesting. I make mistakes along the way, but I'm human. So s*** happens. Get there in the end.Gotta remember I'm from a Caveman era where we filed our own points and tuned carbies with an ear and a beer.... He he.Definitely programmable is the way to go with Carby or Boosted projects.Not really needed if just looking for better spark with an EFI / ECU motor.Handy to have though.....for future pursuits in power.....Sent from my S21 using Tapatalk 1 bear351c reacted to this Share this post Link to post Share on other sites
bear351c 10,260 Posted July 8, 2021 50 minutes ago, Outback Jack said: Gotta remember I'm from a Caveman era where we filed our own points and tuned carbies with an ear and a beer.... He he. LMAO............ Quote of the day...... 1 Outback Jack reacted to this Share this post Link to post Share on other sites
Outback Jack 6,352 Posted July 8, 2021 Hehe.I forgot that I'm running the XH ecu so will set the base timing to '0' or T.D.C. tomorrow before going for a drive.It's at 10btdc at the moment but that's base timing for an XG/ED ECU.That should further improve things.Sent from my S21 using Tapatalk 1 Ando81 reacted to this Share this post Link to post Share on other sites
Outback Jack 6,352 Posted July 9, 2021 Just drove 55km, the ute is running well.TDC base timing and I'm hitting 15's+ regularly in AFRs while cruising.Good result. Edit: 10Btdc was better, so changed it back. Raining Lions and Rottweiler's here...... 1 Ando81 reacted to this Share this post Link to post Share on other sites
Outback Jack 6,352 Posted July 15, 2021 Ute is running well. Job done.Sent from my S21 using Tapatalk 1 bear351c reacted to this Share this post Link to post Share on other sites