Petscar

It's my understanding that Mazda has had 2 revisions on the coils. When were those revisions made? From what I can see, it looks like "C" is fairly recent.

furansu

I have some notes that I believe originally came from ASH8 regarding OEM coils and their factory installation, giving an idea of when they were available or switched over from the previous revision.

PART NO. ---------- SERIES ---------- MODEL & YEAR
N3H1-18-100_ ---- Series I ----------- RX-8 2004-2007
N3H1-18-100A ---- Series I ----------- RX-8 2007-2008
N3H1-18-100B ---- Series II ---------- RX-8 2009 - 2011**
N3H1-18-100C ---- Series II ---------- RX-8 Spirit R - 2012

**Some late assembly 2008/40AE cars may have shipped with Revision B coils

Petscar

Thanks ,Kris,
Any ideas what those revisions addressed?

furansu

No idea; all of the coil designs are potted with epoxy, so opening them up to see the internal circuitry is destructive to the unit. My guess would be improvements to the internal components for improved durability, but OEM's are always *hush* *hush* about what is changed during revision of components.

I've heard of owners with 'B' Revision coils seeing improvements in the upper-RPM by replacing their coils after 30+k miles, even though they were not experiencing misfires, stumbles, or any CEL's. There are so few 'C' coils in known use that the feedback from owners is almost non-existent compared to the early coils. The other statistical anomaly to the data is that when people replace their coils, they replace the plugs and wires as well, which may blur the accuracy of data for coils that actually required replacement, versus coils that were still serviceable, but the wires and plugs had caused the degraded spark performance.

Never the less, to quote Mark Twain: "There are three sorts of lies; lies, damned lies, and statistics."

Steve Dallas

The OP still has not read the New and Potential Owners Start Here sticky that is at the top of this very subforum. Weird.

UnknownJinX

See the bottom of my signature.

To be fair, I don't think there are many technical discussions of Revision C coils.

There are reports of them failing, while there are others saying they are working well after a while.

I am running a set right now. 5500 miles, no problems, other than the 2~3 misfires recorded by the OBD2 monitor I mentioned in the other thread(no flashing CEL, no codes).

Petscar

Actually I have read many things in there. Unfortunately it doesn't always work well. For example the other day I wanted to look up Pre mix and when I hit that topic, it took me somewhere else. Tried it 3 times and the same thing happened. Why waste my time searching which works poorly on this site, when I can cut to the chase. So you see....not so weird. Besides, as a noob, I have to rack up 10 posts to post anywhere else.

UnknownJinX

The site search can be a bit problematic, I agree.

You should try Googling with "(stuff you want to find) site:rx8club.com". It will limit your Google search results to the ones on this site. Works very well. It's a good trick to know in general.(you can use any website after "site:")

We just don't want repeated questions and threads covering the same subjects to cluster the forum. Please understand that your own convenience means more work for the mods and others on this forum.

Petscar

Sorry to be a bother. I saw the Google thing. I don't use Google and never will. If you knew who they give access to your info, you would probably stop using them as well. I will continue to search before I post as I have already been doing. However if I am unsuccessful I will post my questions. It's not like there are hundreds of questions being posted as we are post heyday of the 8. There are just a few latecomers to the 8 like myself. On average I see one or two new questions per day. Sometimes none. I do appreciate those of you who do take the time to answer questions. It is a real blessing.

UnknownJinX

Well I mean it depends on how sensitive your information is.

Personally, nah, I don't have anything much too sensitive I feed to Google. Feel free to know that I looked up information on RX-8 coils or the fact that I looked up moment of inertia of different shapes, LOL. Go wild with this information.

This is a good article on this issue. Give it a read.

Ask Leo: Privacy? What Privacy?

Petscar

Thanks. Generally a good article but as with most, it is his perception. I do agree with most of what he said. But it is more than privacy. It is a statement on my part that I don't agree with their policies and practices so I won't subscribe to their services. We as consumers have the right to boycott or refuse services or products that violate our convictions. Case in point, Monsanto is poisoning our food and has a monopoly on seeds that farmers are forced to buy from them. They have genetically modified certain foods that have been engineered to be resistant to their weed killer Roundup. Also the seeds will not reproduce. Farmers have to use their product and buy their seeds every year. It is said although I haven't verified it, that we are spraying our crops a hundred times more with chemical than we did decades ago. Because the plants are engineered to be resistant, they spray excessive amounts of the chemical that is known to be harmful to humans from tests done in Europe and Asia.

The FDA is in bed with Monsanto and doesn't test the effect of these chemicals on humans. Meanwhile, 85% of the corn grown and 90% of the soy in this country is genetically altered. And most eat it and don't realize it. So you see, it is not just about privacy, but as a consumer you can choose where you shop, what you shop for or who you use for the services you want. The almighty buck is what influences these mega corporations and it is probably the only thing that would cause them to change their practices. I choose to not give them my money or use their services.

FYI, do a Google search 😉 on "Monsanto Revolving door". You will see the corruption between Monsanto and the FDA. If you get a chance, watch the documentary ",Ethos" with Woody Harrelson narrating. And this is the tip of the iceburg. My little contribution to these issues will not do much as long as the majority of people remain oblivious to what's really going on around them. As they say, ignorance is bliss.

Loki

iTrader: (1)

You realize that merely visiting websites gives google and many other data collectors what they want? Unless you're using Tor and a series of VPNs to throw them off...

Petscar

Yep. I do. It's pretty hard to avoid so I just do the best I can whenever possible. Like the article referenced says, for the most part, you can't expect privacy as long as you are On line. Unfortunately I am not savy enough to cover my tracks.

Steve Dallas

Install Ghostery and Adblock Plus in Firefox. Together, they block nearly all tracking. Also, use StartPage as your search engine. It is a proxy for Google that submits your requests anonymously.

site:rx8club also works on Bing and pretty much every other search engine.

See? There are solutions out there than can enable you to stick to your principles AND not ask the same questions that have already been answered 1,000 times.

Petscar

Thanks. I'll give it a try. But aren't you guys going to miss sharing your knowledge when nobody asks questions anymore? There is something about live communication with others. The interaction is an enjoyable part of forums. At least it is to me. 😁

Loki

iTrader: (1)

It gets a little boring when its always the same questions
It turns into 50 First Dates pretty quickly.

TomD_Cincy

iTrader: (2)

Here's some non-scientific feedback on the rev C coils. Previous owner installed a set on what is now my R3 about 10K miles (48K on the car) before I purchased in 2015. Car is now at just over 110K, so about 60K on the coils. I've changed the plugs 3 times so far during my ownership. I have had no issues with the coils nor had any CEL's in my ownership (other than CEL for the missing cat). My car is basically stock other than the mentioned cat removal.

Petscar

Loki,
I can understand what you are saying. There is a simple solution if you find it tedious answering the same questions over and over. Just don't respond. I am sure someone On the forum wouldn't mind answering the question. And I am not being a jerk here. Not like the guy who was accusing you of all kinds of things recently. No names but I'm sure you know who I mean. I'm just a friendly guy dealing with a new car that I know very little about except I knew the engines don't last too long going into it. I also know it is a blast to drive.

Petscar

And I really do appreciate the info you and others have given me. Thanks.

Steve Dallas

There is a more simple solution. Put forth the effort and use the tools at your disposal to avoid creating redundant threads about the most common questions, which have had answers for 10+ years.

A major reason why this form has become so sleepy has do to with how boring the conversation has become, due to threads like this one. Long-time regulars log in, peruse the top threads, sigh, think, "Geez! Not this **** again!" and close the tab, because this stuff has been asked and answered over and over and over and over and over and over and over and over and over and over and over and over again. Why bother?

It is not our responsibility to ignore your threads. It is your responsibility to use the ample tools available to you to find answers to your questions that have been available for years.

Here is another tip. Go back to that New and Potential Owners thread you claim to have read and hit CTRL-F. You can use your browser's find capability to search for any term on any page. It quite literally took me 2 seconds to find the answer to your original question by "finding" the term "ignition".

I am not intending to pick on you specifically. I am just pointing out the fact that newbs want help--even feel entitled to it--without being willing to do even the most basic things to help themselves.

Petscar

I was initially thrilled to find this forum. I had no idea how sensitive you boys would be. Like I said, I have been searching before I post. Like I also said at times I have had problems finding things so I post. I'm so glad you were able to quickly search and find what I was looking for. I'm sorry I have been such a bother to you. I have been nothing but courteous to you guys. So like I said, if my questions annoy you, THEN DON'T RESPOND!. In the meantime I plan on posting my questions whenever I can't find the answer. So stop acting like the dictators of this site because this is a public forum. That is unless of course you can show me documentation that you have been appointed presiding judges over the R X8 CLUB at which point I will refrain from posting anymore questions.

Loki

iTrader: (1)

I get it, and I sort of agree. Neither not posting nor ignoring are good solutions.

Petscar

Thanks for your understanding. I really do try to search first. As far as the suggestion CTRL F, I use a pad and as far as I know, there is no CTRL button.

furansu

As a reference to my car. It is a 2007 car, which would have originally had 'A' revision coils. It presently has 89k miles and I got it with a blown engine (coolant seals). It had OEM coils that appear to have been installed in 2012/2013. They are 'C' revision, have white spotting (epoxy discoloration) but did not misfire before I pulled the engine. Cat converter showed no damage via visual inspection either.

I have a BHR ignition setup as well but plan to keep the 'C' coils for now since they arent having issues

UnknownJinX

Every Ctrl combination on a PC translates to Command on a Mac/Pad/whatever Apple has these days.

So Ctrl+C becomes Command+C, and so on.