whats the part number for the RX8 twin power?

I admit I don't know much, especially regarding ignition amplifiers :puke: How does the HKS Twin Power compare with the AEM Twin Power? :dunno: Comments/criticism appreciated :)

Here is a DIY of the AEM:
https://www.rx8club.com/showthread.p...t=HKS+ignition

The install looks much more complicated for the AEM unit -- due to lack of RX-8 specific harness? The AEM also appears to accept non stock coils such as MSD if needed.

Thanks!
Edgardo

Awesome thread and what timing!
I have just recently experienced a flashing cel at high rpm's (3 times)

So I went out and bought a OBDII reader to find out what the hell (I'm tired of going to the Dealer)
Well it reported a P0302 Cylinder 2 Misfire Detected

Did a quick search on P0302 on the forum to see what others had to say, the result was mostly ignition -- a la -- replace plugs or coils

Did a quick search on coils and found myself here!!!

I would just like to say thank you to everyone who has reported this problem and to those that provide valuable feed back.
I'm glad I'm not alone on this.
I'll be lurking and learning

Looks like I'm going to have an RX-8 Twin Power for sale. I was thinking it's legal for my racing class, but upon further review it's not. Probably $425 shipped, it looks like new, no dirt or grime on it.

Your too late Charles

https://www.rx8club.com/showthread.php?t=113218

Potentially, though you may simply have lowered power in the mid and upper ranges.

Or you may have nearly no symptoms at all, other than reduced power. It depends on whether both the leading and trailing coils on the same rotor are failing.
If the coil goes completely, it will get very rough, but if it is only beginning to fail, the trailing coil will pick up some of the slack.

And your idle goes to hell in a handbasket.

did you replace the coil packs as well?
I changed coil packs, wire, and plugs....MUUUCH better now.

Glad to hear you're car is up and running smoooothly now. Grats man.

I must need new coils then. :(

and the avi's keep getting better...

is the twin power going to shorten coil life? Are there any downsides to an ignition amplifier?

Well, this is the thing -
The OEM coils have an integral ignitor transistor. You can't shove any more voltage or current down its throat than for what it is rated.
All you can do is hold the coil up to its rated voltage (+12v) and hit it with the rated trigger value (+3.5v).
This is why I'm a bit leery of anything that uses the OEM coils - you can't make them perform any better than what they are rated to do without over saturating them.
Now, there is something to be said about the supply for the coils being less than optimal in its OEM configuration. The 12v supply is shared with several sub-systems and comes through the EGI relay and switching, which will significantly restrict its current handling capability.
Add to that the shared ground and the overall usage of 20ga wire, and I think you have a recipe for a less than happy coil.
I suspect boxes like the Twin-Fire are really just line conditioners.
I'd like to see a bench performance test of the coils with and without such a box as well as a comparative look at what the coils can do in an optimal wiring scenario vs. how they come packaged in the car.

Intresting.

I was thinking of making my own coil ground harness from one 4 gauge split into 4 ends, shielded and sealed.

For the 12+ supply could I just hook it up to the battery+alt using seperate wiring for each coil and leave it hot with 12+ all the time or does it need to be switched to the ignition?

Use a relay just to be sure.

Could you use the HKS Twin Power DLI II in conjunction with the Plasma coils?

I tried doing some searches on the Plasma Coils but found very little.
Is it strictly the cost of these coils that is scaring people away from using them?

yes, cost vs value

all they do is modify an OE coil ... at an additional cost of $150 per coil over the the factory price

That CEL must be on newer models. It doesn't exist on my 04

Someone needs to award MM for avatar selection, F car of the month.

I aims to please!

14ga would be appropriate.
I may pull the harness off of my old engine and fab up a better supply and ground section.

I would be interested in that, Jeff. Sounds promising

Anyone have a link to an OE parts retailer for the coil packs, wire, and plugs?

I hope that this will make the ride smoother this summer.

Any news on the Plasma?

you don't want OE wires, get Magnecore 8.5 or anther aftermarket wire

Sounds good. Got a link to the cheapest set? :)

I found them as cheap as 80 bucks shipped on froogle. Is that right?

Anyone know where I can find the cheapest plugs and coil packs?

Maybe:

Onlinemazdaparts.com

bagman1 on the forum

I got my coils from onlinemazdaparts, they were great. Fast delivery, no problems at all.