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hey guys, new member here. i believe this problem just happened to my 04 rx8. I've read through every page and does anyone have any recommendations for sites or locations to get the oem coils,wires, and plugs for the best price? thanks!
just an update here: I went with the duralast coils from autozone, $120 for all 4. Since I'm basically a pro now at installing them thanks to you guys on this site (and the fact its the 3rd time i've had to do it), had the entire process done in about 30 minutes. Fired right up, no cranking or start probs, and runs like new again. Hopefully these coils last longer than 10k/mi... at least they have a warranty if not. I'll def let you guys know how they hold up.
Just got the Dealer to replace Coils and spark plug cables, on my 2010 RX8. I only have 10,000 kms on the car. Thought the coils will still be under warranty. They said no! Charged me $750 for everything. ? ? ?
Just got the Dealer to replace Coils and spark plug cables, on my 2010 RX8. I only have 10,000 kms on the car. Thought the coils will still be under warranty. They said no! Charged me $750 for everything. ? ? ?
Charlie why did you feel you needed spark plugs and coils at 10,000kms? Were you having some running issues? Did you have evidence of bad coils and plugs? You don't say what coils and plugs you changed from, and what about the wires ? If coils and plugs are changed for a valid failure reason, you should always change the wires at the same time. No need to rub it in but you paid hundreds over what you could have done the job for yourself, even upgrading to BHR coils and wires. Give us so more info so hopefully we can have some empathy for your allowing the dealer to rip you off.
Just got the Dealer to replace Coils and spark plug cables, on my 2010 RX8. I only have 10,000 kms on the car. Thought the coils will still be under warranty. They said no! Charged me $750 for everything. ? ? ?
That sucks man... A heads up for the future, never go to the dealer for your basic changes/needs. If you aren't able to do stuff yourself, just buy the supplies yourself and take it to a trusted mechanic shop and it can easily reduce your price by 5-10x literally.. :/.
I took my car to the Dealer where I purchased it in Summer. It was a Demo, never sold.
I was getting a lot of sputtering and missing at morning cold starts. The engine light came on. As I believe I mentioned before, The Dealer replaced the Catalytic for free, for the engine light , but for the engine sputtering they changed and charged me for new coils and wires. They said the Spark plugs were still good. Just for the record the car is running fine now.
Glad your car is running ok, but you have got to stop overpaying your dealer for work that you can do for a fraction of the cost, even upgrading to BHR which would last you the lifetime of your car would have cost less than you paid!
Last edited by gwilliams6; 01-21-2015 at 09:57 AM.
I was able to do it (barely) by removing the engine crossbar and nothing else, and by using a little bit of penetrating oil on everything, bolts, nuts, connectors, etc.
Thank you everyone. I've had my car for a little over three years now and just ran into the flooding problem. 70K and I think it was the first time anything has been touched with the plugs and coils. I read everyone's posts and decided to change out the plugs, wires and coils, before I did anything else. I had a friend of mine who is a mechanic, but never worked on a rotary, interested in helping to see what it would be like. Thanks to everyone's comments, pictures, and advice, we were able to change everything out in less that 30 minutes. It honestly took me longer to find my jack and wheel key than it did to change everything out. The extra Plugs were in the glovebox when I bought the car, $60 on-line for the coils, and $22 for the wires. $82 vs. $750 I was quoted and I know how to do it now. Thanks for all the help. Chuck
Be sure something that also helps with the new coils, put some scrap type of plastic against the metal plat that holds the coils on. Doing this will help maintain good coils. The metal plate over time does drop the life span of coils with the white spots you'll notice on the back or bottom of coils. Just a simple idea to keep the life of coils running smoothly.
Hi, I think it‘s time to replace the coils on my 2004 and I see NGK U5093 on Ebay advertised as the same as N3H1-18-100C. Does anyone know for sure these are truly the same or only compatible?
Hi, I think it‘s time to replace the coils on my 2004 and I see NGK U5093 on Ebay advertised as the same as N3H1-18-100C. Does anyone know for sure these are truly the same or only compatible?
Be careful as many if not most of these 'cheap' eBay Coils are cheap knock offs with next to zero quality and performance at high RPM.
Hi, I think it‘s time to replace the coils on my 2004 and I see NGK U5093 on Ebay advertised as the same as N3H1-18-100C. Does anyone know for sure these are truly the same or only compatible?
If you don't mind spending $700 the SakeBomb IGN 1A kit is what I've been running for about 50,000 miles for several years, + a 3 year hiatus.
I bought it not long after they became available.
I had the old style BHR kit with the GM coils but after reading and participating in a couple of IGN 1A coil threads I decided to be a Guinea pig and try it.
I've been more than happy with them.
If you didn't know, they're Mercury outboard engine coils.
They're almost a pound each.
Heavy duty wiring harness and the bracket mounts on the AC compressor so it's a few inches away from the block.
I am running the second generation of the high performance BHR coils, which are even better than the amazing first generation ones. (my first generation set was still work fine after years of use, I just wanted to upgrade to the latest ones).
The high performance BHR coils are still the most tested, most bought and most real-world used and proven aftermarket high-performance RX8 coils, bar none. (Four coil set of BHR coils $399 total USD, with free shipping and five year warranty)
No need to go anywhere else, and please stay away from the cheap knock-offs, they could cost you an engine, and that could cost you thousands in the end.
Cheers and best to you.
Last edited by gwilliams6; 04-16-2023 at 03:09 PM.
it’s been around since before BHR even existed, as it was originally developed specifically for high rpm Mercury 2-stroke boat racing engines (they were originally called “Mercury” coils, but IGN-1A is their true designation)
unfortunately the sakebomb kit is way overdeveloped with the cost to match it, those coils only need a straight-thru adapter harness with the proper ground leads and the coil mount, the original factory 20A wiring harness is more than sufficient for 3.5mS dwell. It’s not even necessary to run that much.
3.5 mS was still firing this plug in a 13B REW @30 psig boost having a gap width you could determine with a tape measure
.
all the extra relays, fuses, and excessive harness on the Sakebomb kit just isn’t needed because it isn’t necessary to run high dwell with them.
.
it’s been around since before BHR even existed, as it was originally developed specifically for high rpm Mercury 2-stroke boat racing engines (they were originally called “Mercury” coils, but IGN-1A is their true designation)
unfortunately the sakebomb kit is way overdeveloped with the cost to match it, those coils only need a straight-thru adapter harness with the proper ground leads and the coil mount, the original factory 20A wiring harness is more than sufficient for 3.5mS dwell. It’s not even necessary to run that much.
3.5 mS was still firing this plug in a 13B REW @30 psig boost having a gap width you could determine with a tape measure
.
all the extra relays, fuses, and excessive harness on the Sakebomb kit just isn’t needed because it isn’t necessary to run high dwell with them.
.
It was expensive, but I'm not good at wiring stuff, even some simple things.
It was plug & play so I took the easy route to save time and possible headaches.
I am running the second generation of the high performance BHR coils, which are even better than the amazing first generation ones. (my first generation set was still work fine after years of use, I just wanted to upgrade to the latest ones).
The high performance BHR coils are still the most tested, most bought and most real-world used and proven aftermarket high-performance RX8 coils, bar none. (Four coil set of BHR coils $399 total USD, with free shipping and five year warranty)
No need to go anywhere else, and please stay away from the cheap knock-offs, they could cost you an engine, and that could cost you thousands in the end.
Cheers and best to you.
I have not seen any definitive comparison tests to show the Sakebomb coils are superior to the new Global BHR coils: I have run over 70,000 miles on the original BHR set and they are still in great running condition. I have installed the newer, improved Global BHR set and have already run them 20,000 miles. NO aftermarket high-performance RX8 coil set has more proven miles run by RX8club members than the BHR kits.
no other external brackets are needed to install the BHR Globally-Compliant Ignition Coils.
Price includes shipping to all 48 states. Hawaii, Alaska and international orders may be extra. Contact BlackHaloRacing@Yahoo.com for a shipping quote.
This coil improves upon and now replaces the previous Black Halo Racing Ignition System. Here is how;
1) No more external brackets are needed.
2) No more conversion wiring harness.
3) No more special D-585 style spark plug wires are needed.
4) Improved output performance versus previous offerings.
5) Will not illuminate "Coil Communication CELs" in JDM applications.
6) No need to modify the S2 bracket as needed with other coils and kits.
The New Black Halo Racing Ignition Coil (patent applied for) is a direct-replacement performance coil which properly operates on all versions of the Mazda RX-8 and in all regions of the world (USDM, EUDM, JDM) without any "Check Engine" lights and without modifications to either the S1 nor S2 coil mounting bracket. It contains all the same performance features, and we have been able to improve some fitment/operational features, of the coil previously used in our Black Halo Racing Ignition System but without the hassle and added expense of needing a bracket system, a conversion harness, or non-OEM type spark plug wires.
Black Halo Racing was able to improve upon the D-585's performance when used with the Mazda RX-8 by utilizing the proper IGBT module which, in turn, mates perfectly with the RX-8's Powertrain Control Module and with the PCM's coil driver software. This results in a quicker charging coil which perfectly tracks the commanded ignition timing signal and does not illuminate any "check engine" lights when used on JDM-equipped RX-8s.
Additional dwell time or other "tuning" is not needed as this coil provides improved output and durability when compared to the factory coil. If the end-user wishes to add dwell time, this coil is prepared to accept up to 5.0 ms of total dwell time.
An often overlooked measure of ignition coil operation is "total allowable duty cycle" (the same concept as with fuel injectors) and while other offerings can be limited to a 40% duty cycle, the design of this coil has proven itself over the last ten years to not only handle duty cycles as high as 80%, and RPMs as high as 9K+, but it will also do so for far longer than other coils (as has been demonstrated for 11+ years with our previous ignition system offering).
Warranty: Five years
-Original purchaser must retain sales receipt or be able to provide the invoice number and date of purchase for warranty to remain valid.
Price includes shipping to all 50 states. International shipping please contact BlackHaloRacing@Yahoo.com for shipping quotes.
I did a lot of research and arrived at the conclusion the IGN-1A coils are superior.
Not only from reading and participating in the IGN-1A discussion threads here, but other forums like the RX7 forum that had IGN-1A threads that Team told me about which were talking about them 10 years ago, and sites including the Mercury website and some boat racing forums.
I have 4 BHR products and like the items I bought from him.
The "additional bracket" was a selling point for me, moving the coils away from the extreme heat of the block.
I also wanted to be a 'test mule' for benefit of this forum since I DD my 8.
Believe what you want, but I made an educated decision, and while it's probably overkill for a stock NA Renny, my experience speaks for itself.
+1 for the ign1a coils. There are serious fd's out there running the same coils for over 10 years.
There's no comparison with ls coils. Different eras, different tech.
I am using the NGK 48283 since a couple of years, they are in the same level as the original ones. Bought mine at Amazon. The original package has a hologram and other marks that can be checked on the NGK homepage.
04-15-2014, 12:50 AM
just did it
