AEM High Output Inductive Dumb Ignition Coil
03-09-2013, 01:39 PM
#1
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AEM High Output Inductive Dumb Ignition Coil
Hey guys.. saw this link on ebay. searched the forums and googled but haven't seen anyone mention its usage for the rx8.. Anyone with experience or knowledge on these?
Aem High Output Inductive Dumb Ignition Coil 30 2852 2 Pack | eBay
Aem High Output Inductive Dumb Ignition Coil 30 2852 2 Pack | eBay
03-09-2013, 02:05 PM
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Unsure. Any reason you would spend $117 a coil, for a starting price of $468, BEFORE
- shipping
- wires
- fabricating a mounting bracket
- fabricating the wiring harness to be compatible with the OEM harness
- ensuring that the OEM ECU can work with those coils specs
Why not go with the BHR coil kit for $500 which is proven, completely plug and play, and will be cheaper?
Edit: It was validly pointed out that I missed the "2 pack" mention, which cuts the starting price down more
- shipping
- wires
- fabricating a mounting bracket
- fabricating the wiring harness to be compatible with the OEM harness
- ensuring that the OEM ECU can work with those coils specs
Why not go with the BHR coil kit for $500 which is proven, completely plug and play, and will be cheaper?
Edit: It was validly pointed out that I missed the "2 pack" mention, which cuts the starting price down more
Last edited by RIWWP; 03-09-2013 at 03:39 PM.
03-09-2013, 02:19 PM
#3
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Black Halo Racing
http://black-halo-racing.myshopify.c...nition-upgrade
Hey, I just noticed.................when the heck did they come out with the "blue anodized" bracket.................I want one! Damn it all.
Gonna have to speak with Ray about that!!!!!
http://black-halo-racing.myshopify.c...nition-upgrade
Hey, I just noticed.................when the heck did they come out with the "blue anodized" bracket.................I want one! Damn it all.
Gonna have to speak with Ray about that!!!!!
Last edited by Mazurfer; 03-09-2013 at 02:21 PM.
03-09-2013, 02:20 PM
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It'll actually work out to around $234 for 4 coils before shipping (it costs 117/pair). I have nothing against the bhr system and Im planning on going that route but this just sparked my curiosity a bit. I was just hoping someone had experience with those same issues u highlighted and whether its a viable option.
03-09-2013, 02:24 PM
#5
edit: that's the wrong coil, you need the "smart" version to use directly on the RX8 which costs more
if you can stomach reading through the drama BS in the linked thread below, it's the same thing just re-branded by AEM with a higher price
https://www.rx8club.com/tech-garage-...hlight=mercury
or just skip to near the end where the important info is
it has the reputation as the best performance ignition coil out there for the money, but it has some critical wiring gauge requirements due to the power amp draw at higher than factory dwell settings
http://www.diyautotune.com/catalog/i...oil-p-394.html
.
if you can stomach reading through the drama BS in the linked thread below, it's the same thing just re-branded by AEM with a higher price
https://www.rx8club.com/tech-garage-...hlight=mercury
or just skip to near the end where the important info is
it has the reputation as the best performance ignition coil out there for the money, but it has some critical wiring gauge requirements due to the power amp draw at higher than factory dwell settings
http://www.diyautotune.com/catalog/i...oil-p-394.html
.
Last edited by TeamRX8; 03-09-2013 at 02:36 PM.
03-09-2013, 02:31 PM
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It'll actually work out to around $234 for 4 coils before shipping (it costs 117/pair). I have nothing against the bhr system and Im planning on going that route but this just sparked my curiosity a bit. I was just hoping someone had experience with those same issues u highlighted and whether its a viable option.
03-09-2013, 03:25 PM
#7
this thread has nothing to do with BHR or concerns not based on either fact or reality
the IGN1A is pretty much the the go-to performance coil on FI cars in general and rotary FI cars in particular
you can argue it's overkill on an NA rotary, but then for $500 the options open up ...
the IGN1A is pretty much the the go-to performance coil on FI cars in general and rotary FI cars in particular
you can argue it's overkill on an NA rotary, but then for $500 the options open up ...
03-09-2013, 03:40 PM
#8
I have the IGN-1a coils and I like them. Takes some wiring, but they pack a punch. The spark really does last for 2ms and the 40kv is no joke, the coils will arc a good 4 inches. Probably the best you can get on the market and they work at stock dwells.
03-10-2013, 06:02 PM
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Deleted posts that have no technical content. This is the Tech subforum. Fighting here is no worse than someone posting a purchase question thread in DIY. Fight somewhere else. I recommend picking somewhere appropriate.
03-10-2013, 08:07 PM
#12
^agreed, contact C.Ludwig at lms-efi , they can actually build you a harness and last time i talked to him the cost of coils + harness was less than $400. Power will go direct to battery, grounds go to the rotor housing of their respective rotors. Good guys and have been providing the RX7 faithful services for quite some time. Very knowledgable too.
03-10-2013, 08:12 PM
#13
I will eventually post a DIY thread if someone else doesn't beat me to it, just can't seem to get to it
There are numerous threads on RX7Club for anyone with concerns looking for real world experience.
There are numerous threads on RX7Club for anyone with concerns looking for real world experience.
Last edited by TeamRX8; 03-10-2013 at 08:15 PM.
03-10-2013, 08:18 PM
#14
Btw here is an excerpt from a conversation that I had with C.Ludwig a while back at RCC
We have the coils for $77 each. We don't make a bracket so you will need to come up with a way to mount them. They are slightly larger than the GM coils. They also draw more amperage than the GM coils. Though it would be possible to adapt the RX-8 wiring to these coils, similar to how the GM coils are setup, it wouldn't be ideal. For best performance, and to ensure you don't melt any wiring, it would be best to provide a dedicated power feed from the battery directly to the coils. We build a similar harness for the FD, which has been very popular, for $150.
In the end, I guess your question is , will these work better? The answer is that they should, but you're still limited by the stock dwell characteristics. The GM coils are fairly hot, but require about 6 ms dwell time to achieve around 100 mJ output. The Mercury coils achieve the same output at 3 ms charge time. So, they should provide a hotter spark with the stock RX-8 dwell. The next question is, will more spark energy help you? With a relatively stock powertrain, my guess would be the benefits would be minimal at best. If you're not having any issues with the GM coils, I probably wouldn't make the switch.
In the end, I guess your question is , will these work better? The answer is that they should, but you're still limited by the stock dwell characteristics. The GM coils are fairly hot, but require about 6 ms dwell time to achieve around 100 mJ output. The Mercury coils achieve the same output at 3 ms charge time. So, they should provide a hotter spark with the stock RX-8 dwell. The next question is, will more spark energy help you? With a relatively stock powertrain, my guess would be the benefits would be minimal at best. If you're not having any issues with the GM coils, I probably wouldn't make the switch.
03-10-2013, 08:34 PM
#17
lolol. The harness itself isn't hard to make if you have any basic wiring skills. The tedious part comes when you have to consider the length of the harness since you may need to mount the coils in a different location depending on your setup.
you can see how the 7 owners did their installs here to get some ideas on wiring (lots of clean installs):
AEM IGN-1A Mercury Marine ignition coil info/install - RX7Club.com
you can see how the 7 owners did their installs here to get some ideas on wiring (lots of clean installs):
AEM IGN-1A Mercury Marine ignition coil info/install - RX7Club.com
03-10-2013, 10:33 PM
#19
They will fit on the OE coil bracket, some people will laugh that I choose to use a HD tiewrap or velcro strap to hold them in place but why make it overly complicated? They really can't go anywhere even if does come loose.
in this initial test fitment pic I had them in a dual 2x2 mounting, have since bought two 7" long x 1/4" dia bolts/nuts and aluminum 3/4" OD x 1/4" ID spacers to make a single 1x4 block. Note how the plug wire terminals are staggered. Don't be afraid to be creative. You could locate them any number of places, but ideally the shortest possible spark wire length is ideal so locating them down by the plugs would be the preferred location IMO.
What I like about them is that they use a standard 90 deg HEI/sparkplug type terminal so in a pinch you can find a sparkplug wire almost anywhere. I was hung out at a race with a terminal failure and had to Next Day Rush Air in a full set of special wires for the GM/RX8 coil setup, kind of sucked
http://www.msdignition.com/Products/...Terminals.aspx
.
in this initial test fitment pic I had them in a dual 2x2 mounting, have since bought two 7" long x 1/4" dia bolts/nuts and aluminum 3/4" OD x 1/4" ID spacers to make a single 1x4 block. Note how the plug wire terminals are staggered. Don't be afraid to be creative. You could locate them any number of places, but ideally the shortest possible spark wire length is ideal so locating them down by the plugs would be the preferred location IMO.
What I like about them is that they use a standard 90 deg HEI/sparkplug type terminal so in a pinch you can find a sparkplug wire almost anywhere. I was hung out at a race with a terminal failure and had to Next Day Rush Air in a full set of special wires for the GM/RX8 coil setup, kind of sucked
http://www.msdignition.com/Products/...Terminals.aspx
.
Last edited by TeamRX8; 03-10-2013 at 10:52 PM.
03-11-2013, 12:12 AM
#20
lolol. The harness itself isn't hard to make if you have any basic wiring skills. The tedious part comes when you have to consider the length of the harness since you may need to mount the coils in a different location depending on your setup.
you can see how the 7 owners did their installs here to get some ideas on wiring (lots of clean installs):
AEM IGN-1A Mercury Marine ignition coil info/install - RX7Club.com
you can see how the 7 owners did their installs here to get some ideas on wiring (lots of clean installs):
AEM IGN-1A Mercury Marine ignition coil info/install - RX7Club.com
might have more time a year from now ...
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