Smart coil harness?
06-27-2018, 06:28 AM
#1
Smart coil harness?
Hello,
I'll be brief: I lost my job and I need money. I want to sell my RX8. Problem is, I don't have coils for it.
I sold my AEM smart coils because I needed the money. My ECU has been modified for longer dwell timing and higher coil output. I've tried it with 2 sets of NGK coils and it burns through them very fast not to mention the spark is all over the place.
I've found another set of smart coils but they do not come with an adapter harness to ground to the battery or the chassis. They bolt on to the engine harness but I am concerned about them not working properly without the adapter harness that the previous coils had.
My questions are: what harness should I use with smart coils? They have a 5-pin plug. Would any LS2/D585 harness work? Will they work fine without a harness or do I really need one to handle the increase in spark energy?
smart coils I found: Holley EFI 556-112 https://www.holley.com/products/igni.../parts/556-112
I'll be brief: I lost my job and I need money. I want to sell my RX8. Problem is, I don't have coils for it.
I sold my AEM smart coils because I needed the money. My ECU has been modified for longer dwell timing and higher coil output. I've tried it with 2 sets of NGK coils and it burns through them very fast not to mention the spark is all over the place.
I've found another set of smart coils but they do not come with an adapter harness to ground to the battery or the chassis. They bolt on to the engine harness but I am concerned about them not working properly without the adapter harness that the previous coils had.
My questions are: what harness should I use with smart coils? They have a 5-pin plug. Would any LS2/D585 harness work? Will they work fine without a harness or do I really need one to handle the increase in spark energy?
smart coils I found: Holley EFI 556-112 https://www.holley.com/products/igni.../parts/556-112
06-27-2018, 09:09 AM
#3
Unfortunately, returning to stock is not an option. It is cheaper and faster for me to buy the Holley coils than to return the ECU and have it reset. Not to mention that I can ask a tiny bit more for the car with a modified ECU and uprated coils.
ECU was modified for higher spark energy and dwell timing increased to 2.9ms, which from what I've read in the manual, is not a problem for the Holley coils wince they are spec-wise, AEM smart coils (again, based on what I have read up on them)
I was looking into D585/LS2 coils as an option since they come with a harness but I have no idea how they will react or how long they will last on my car.
Jobless as I may be, I want to make sure the car is sold as running for a long time. I don't want to pass on my problems to someone else. I just want to fix it. Properly.
ECU was modified for higher spark energy and dwell timing increased to 2.9ms, which from what I've read in the manual, is not a problem for the Holley coils wince they are spec-wise, AEM smart coils (again, based on what I have read up on them)
I was looking into D585/LS2 coils as an option since they come with a harness but I have no idea how they will react or how long they will last on my car.
Jobless as I may be, I want to make sure the car is sold as running for a long time. I don't want to pass on my problems to someone else. I just want to fix it. Properly.
07-13-2018, 09:27 AM
#4
Scratch all that, I got my answer thanks to the good people at RotaryRevs:
You can use both smart and D585 coils with increased dwell timing. Which begs the question: why use smart coils in the first place, since not only themselves but the harness costs double what a kit of D585s cost.
Either way, if anyone else is having doubts: D585 coils all the way. I found this out the hard way
You can use both smart and D585 coils with increased dwell timing. Which begs the question: why use smart coils in the first place, since not only themselves but the harness costs double what a kit of D585s cost.
Either way, if anyone else is having doubts: D585 coils all the way. I found this out the hard way
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