I need coils, oem or what?
TECH Apprentice
Joined: Mar 2005
Posts: 368
Likes: 1
From: Raleigh,NC
Read the thread from Paul Bell about ignition coil choices.
https://ls1tech.com/forums/generatio...l-upgrade.html
https://ls1tech.com/forums/generatio...l-upgrade.html
TECH Senior Member
Joined: Jun 2016
Posts: 22,289
Likes: 3,615
From: Central Cal.
Read the thread from Paul Bell about ignition coil choices.
https://ls1tech.com/forums/generatio...l-upgrade.html
https://ls1tech.com/forums/generatio...l-upgrade.html
So I was half right; still OEM, but TRUCK coils are the trick move here.
Ignition Coil Installation & Tech Hi Joni, the "best" choice is based on cylinder pressure/fuel/max RPM for the requirement.
The next consideration is cost/HP increase/fuel mileage increase/throttle response.
The world wide accepted choice (any engine) is my IGN-1A coil for Maximum Performance.
This coil if fitted will produce 18-22 HP over the LS coils AND reduce fuel consumption with an increase in throttle response.
This case requires two sub-harness replacement, two brackets, new SPW, and tune.
The next choice is my GEN-IV coil with heat sink, an 85mj coil.
This coil will fit your LS-3 native brackets, wiring, SPW if correct information was provided.
NOW even the BEST COIL/ANY COIL will require a Coil Dwell modification in the EMS tune for best performance.
When the coil can "keep-up" you can increase SPG with results in more HP/lower fuel consumed/better throttle response.
Would you like more information ?
Lance
The next consideration is cost/HP increase/fuel mileage increase/throttle response.
The world wide accepted choice (any engine) is my IGN-1A coil for Maximum Performance.
This coil if fitted will produce 18-22 HP over the LS coils AND reduce fuel consumption with an increase in throttle response.
This case requires two sub-harness replacement, two brackets, new SPW, and tune.
The next choice is my GEN-IV coil with heat sink, an 85mj coil.
This coil will fit your LS-3 native brackets, wiring, SPW if correct information was provided.
NOW even the BEST COIL/ANY COIL will require a Coil Dwell modification in the EMS tune for best performance.
When the coil can "keep-up" you can increase SPG with results in more HP/lower fuel consumed/better throttle response.
Would you like more information ?
Lance
