Mazda Oem Coils are crap! BHR Ignition I guess.....
06-05-2011, 06:47 PM
#177
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Is there any way to test these coils? (other than the "white spots". My sons 8 has a longer than normal crank time cold or hot and lacks some power, most noticable below 6k rpm. If you had, say one bad coil, how would you know which one it is? We are going to replace all of them, but if one of those go bad under warranty, how would you know what one to replace?
06-05-2011, 07:29 PM
#178
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Well, the official Mazda way is to test the resistance between each of the terminals (A to B, B to C, and A to C) in the plug for each coil. Technically, Mazda doesn't classify a coil as "failed" until it what is supposed to be open is closed (infinite resistance).
However, it has been shown that you can start getting misfires, powerloss, and mileage drop WELL before you get a complete failure.
The typical method is "if you get any indication of coil failure at all, replace all 4".
No coil is built the same as any other, and it's true, typically only 1 coil will start failing around 30,000 miles, the others are probably good for more than that, up to about 60,000. But, since your chances of getting all 4 perfect ones are pretty remote, the replacement interval is ~30,000.
This is also where you get people claiming that the OEM coils never fail, they just got dirty luck on their first set (it does happen after all), or keep replacing them before they hit the failure point. It is also possible to have them fail REALLY early, as soon as ~8,000 miles. But that is about as rare has getting long life ones.
However, it has been shown that you can start getting misfires, powerloss, and mileage drop WELL before you get a complete failure.
The typical method is "if you get any indication of coil failure at all, replace all 4".
No coil is built the same as any other, and it's true, typically only 1 coil will start failing around 30,000 miles, the others are probably good for more than that, up to about 60,000. But, since your chances of getting all 4 perfect ones are pretty remote, the replacement interval is ~30,000.
This is also where you get people claiming that the OEM coils never fail, they just got dirty luck on their first set (it does happen after all), or keep replacing them before they hit the failure point. It is also possible to have them fail REALLY early, as soon as ~8,000 miles. But that is about as rare has getting long life ones.
06-06-2011, 05:05 PM
#179
Instead of bashing a company that makes products specifically geared towards the rx8 and has a track record of success why don't you just buy something and try it out. If you don't like it then you could sell the product.
I am pretty sure BHR would work better with you if you wouldn't attempt to bash the company in a thread and just ask them a question directly.
I also love how people blame the new products they install to fix their issue instead of checking everything out that could be wrong with the car......
I am pretty sure BHR would work better with you if you wouldn't attempt to bash the company in a thread and just ask them a question directly.
I also love how people blame the new products they install to fix their issue instead of checking everything out that could be wrong with the car......
Charles have been really excellent in all ways, and my intention was not to harm BHR's repurtation at all(dobt if I could even if I tried).
My point is that nothing is perfect for all applications. I understood MazdaManiac in a way that everything would be better with aftermarked coils, well I say not always. Mazda engineers has a trick that makes low compression engines start.
And everything points to low compression on my engine, it has 80.000km.
06-06-2011, 05:14 PM
#180
Some people seem to suddenly get hot hard-start issues and some don't.
In my case, the one time I had hot hard-starts that seemed to magically disappear when I used OE coils was on a low compression motor.
However, on another motor that had low compression, the hot starts were fast with the BHR ignition and slow with the OE coils, so who knows exactly what is going on there. I don't.
In my case, the one time I had hot hard-starts that seemed to magically disappear when I used OE coils was on a low compression motor.
However, on another motor that had low compression, the hot starts were fast with the BHR ignition and slow with the OE coils, so who knows exactly what is going on there. I don't.
Best wishes.
10-11-2011, 02:43 PM
#181
Sorry for the thread revive or hijack if anyone is offended.
I just wanted to state that I recently bought and installed (on Saturday) a BHR coil kit. I also replaced the spark plugs, cleaned the TB, MAF and K&N Air Filter and the result is all driving conditions have smoothed out completely. I always perform TB, MAF and filter cleanups during oil changes thus they were slightly dirty and plugs only had 14k miles on them.
Idle, high RPM and sub 2k RPM in any gear except first have improved and smoothed considerably.
I was using OEM coils with Ultra/Racing Beat plug wires and the car never felt this way until the coil upgrade. Not even with the usual maintenance previously mentioned. The OEM coils were not that bad in my opinion, but they were due for replacement since every once and a while the car took longer to start in the morning and exhibited an unusual chirp.
The craftsmanship of the kit is flawless and the assistance Charles provided me is the best I ever had.
I might be new to the RX8 but not to modding cars. I consider myself a very skilled DIY guy and a perfectionist at it, but this kit although simple is flawless. Would I buy it again instead of making it, absolutely.
Here's a quick video comparing the LS2 coils vs. the D-585 coils being used with BHR kit. This is for all of those who want to know the difference between these coils.
http://video.google.com/videoplay?do...5369765754251#
I just wanted to state that I recently bought and installed (on Saturday) a BHR coil kit. I also replaced the spark plugs, cleaned the TB, MAF and K&N Air Filter and the result is all driving conditions have smoothed out completely. I always perform TB, MAF and filter cleanups during oil changes thus they were slightly dirty and plugs only had 14k miles on them.
Idle, high RPM and sub 2k RPM in any gear except first have improved and smoothed considerably.
I was using OEM coils with Ultra/Racing Beat plug wires and the car never felt this way until the coil upgrade. Not even with the usual maintenance previously mentioned. The OEM coils were not that bad in my opinion, but they were due for replacement since every once and a while the car took longer to start in the morning and exhibited an unusual chirp.
The craftsmanship of the kit is flawless and the assistance Charles provided me is the best I ever had.
I might be new to the RX8 but not to modding cars. I consider myself a very skilled DIY guy and a perfectionist at it, but this kit although simple is flawless. Would I buy it again instead of making it, absolutely.
Here's a quick video comparing the LS2 coils vs. the D-585 coils being used with BHR kit. This is for all of those who want to know the difference between these coils.
http://video.google.com/videoplay?do...5369765754251#
03-28-2012, 08:37 AM
#182
Some people seem to suddenly get hot hard-start issues and some don't.
In my case, the one time I had hot hard-starts that seemed to magically disappear when I used OE coils was on a low compression motor.
However, on another motor that had low compression, the hot starts were fast with the BHR ignition and slow with the OE coils, so who knows exactly what is going on there. I don't.
In my case, the one time I had hot hard-starts that seemed to magically disappear when I used OE coils was on a low compression motor.
However, on another motor that had low compression, the hot starts were fast with the BHR ignition and slow with the OE coils, so who knows exactly what is going on there. I don't.
Thing is that mine starts easy when i roll it.
04-20-2012, 04:16 PM
#183
I upgraded to a R3 starter motor and it solved my issue - for the moment. Difference is huge anyway.
03-06-2014, 05:24 PM
#184
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So from what i've read it seems that everyone who upgraded to the BHR kit had very little issue's. And it seems as if everyone has enjoyed them. I do believe that in april possibly may depending upon the weather here in PA i'll have to order them. Any chance BHR will be doing any sales coming up?
03-06-2014, 05:48 PM
#185
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I don't recall BHR ever doing a sale. He sells them constantly at the price it's at, there isn't any reason for him to lower the price.
Even used kits re-sell for 80%+ of the original price.
Even used kits re-sell for 80%+ of the original price.
03-06-2014, 06:05 PM
#186
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couldn't hurt to ask lol. Well either way as stated earlier i will be getting this once the weather here in PA allows it lol. O BTW RIWWP i found the upgraded starter at an AMAZING price B) 
. Is there a warrenty on it? If so, if i purchase one from the 8 club here and say 10k miles later it fails. am i still covered even though i didn't purchase it directly from BHR?
. Is there a warrenty on it? If so, if i purchase one from the 8 club here and say 10k miles later it fails. am i still covered even though i didn't purchase it directly from BHR?
03-06-2014, 06:11 PM
#187
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Unless you get him really annoyed with you. Ray doesn't treat customers with kid gloves, and will tell you exactly what he thinks of you. It's refreshingly honest, and one of the reasons he is valued around here.
Some of the people that hate his guts and bash his products are doing so simply because he told them something they didn't want to hear.
There is a warranty on the BHR kit (I assume you aren't talking about the starter). If you purchase a used one, get in contact with Ray to see what is covered and what isn't. It may be out of warranty already anyway. Although, you can have the kit sent back to him for an inspection and a refresh if you like, he may extend/re-offer the warranty at that point. Again, that is something you will have to talk with him about.
He is really approachable, just shoot him an email and ask your questions.
Some of the people that hate his guts and bash his products are doing so simply because he told them something they didn't want to hear.
He is really approachable, just shoot him an email and ask your questions.
03-06-2014, 06:38 PM
#188
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Will do RIWWP. And i definitly wouldn't want to upset him or insult him in any way. I just figured hey you don't know if you can get a better price or mabye a package deal unless you ask right? I actually prefer people that are straight forward and to the point. There is NO point in ***** footing around anything. lol, i'll be fine after the army i've gained some pretty thick skin. As always tho RIWWP thanks for the info and yes i do know i spelled Warranty wrong.
04-06-2016, 12:01 PM
#191
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Possible alternate solution to coil pack arcing?
re: this thread in the series II tech forum:
https://www.rx8club.com/series-ii-te...iis-s2-188535/
Do you think it would help to sandwich a plate of a high dielectric strength material, such as 1/4" teflon sheet between the coil packs and the mounting plate? It should mitigate the arcing between the bottom of the coils to the base plate.
Has anyone tried this or something similar?
https://www.rx8club.com/series-ii-te...iis-s2-188535/
Do you think it would help to sandwich a plate of a high dielectric strength material, such as 1/4" teflon sheet between the coil packs and the mounting plate? It should mitigate the arcing between the bottom of the coils to the base plate.
Has anyone tried this or something similar?
04-12-2016, 02:43 AM
#192
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@hoosgow: I tried insulating with heat wrap and i tried a modified bracket with holes under the coils ... behavior of them is the same .. they still fail after a while.
If u try it yourself be sure to prevent rust by painting the bracket or something like that .. cause if u dont it will rust like mad under the insulation.
Better go with the AEM Ignition Kit or the BHR one....
Greetings
Thomas
If u try it yourself be sure to prevent rust by painting the bracket or something like that .. cause if u dont it will rust like mad under the insulation.
Better go with the AEM Ignition Kit or the BHR one....
Greetings
Thomas
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