Need new coils
02-26-2009, 03:10 PM
#76
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Location: Montreal, QC, Canada
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Has anyone tried the combination of BHR coils and Racing Beat Flash ?
This thing must rock, no?
BHR Team : what Flash (version, or your own map or ?) do you guys run on your personal RX-8, out of curiosity...? (I hope it's not another business secret!)
This thing must rock, no?
BHR Team : what Flash (version, or your own map or ?) do you guys run on your personal RX-8, out of curiosity...? (I hope it's not another business secret!)
02-26-2009, 03:21 PM
#77
And I don't mind standing in line, filling out the customs paperwork, and paying an additional $32 for international shipping, either.
I lose $2 on each international order and a lot of time, too.
02-26-2009, 03:22 PM
#78
What is the warranty on the BHR coils? Is there a warranty on the stock Mazda coils? Average install time for each? I assume Mazda would try to void the 100k engine warranty with non-stock coils even though they're better--siince this thread started out being about NA use, I suppose that's another consideration.
02-26-2009, 03:24 PM
#79
We probably have a few customers using the Racing Beat re-flash with the coil kit but we have even MORE (ourselves included) running the MazdaManiac-tuned Cobb AccessPorts and they run pretty smooth and strong.
02-26-2009, 03:42 PM
#82
Registered
Thanks. Do you think your coils are over-kill for purely stock operation? I gotta wonder with these coils being $300 more than the stock coils once you take away the cost of the spark plug wires.
Last edited by robrecht; 02-26-2009 at 03:45 PM.
02-26-2009, 05:12 PM
#87
A set of coils + cables here in italy costs around 600€ so this is a great upgrade for several owners
02-26-2009, 05:24 PM
#88
Registered
Increased fuel efficiency over good stock coils? One of the increased fuel efficiency claims that was posted here neglected to mention that at least one of the replaced coils was actually known to be bad.
02-26-2009, 05:41 PM
#89
While the fact that several user made calculations and retrieved data with bad coils to make a comparison we should focus on for how long the stock coils keep working correctly.
I killed mine after 17500miles. I'm not a pilot but i often spend time at the local tracks so i put some serious stress on them.
Since a guy that wants to simply daily drive his car probably won't change a single thing on his car we should understand that "Performance" mods are meant to increase something over the replaced OE product.
The stock coils won't suite some boosted applications for instance or won't last too long if abused on a NA car. That's pretty much it, you have to feel the need to change something or it will be useless anyway. Be it for sound, performance or longevity.
I killed mine after 17500miles. I'm not a pilot but i often spend time at the local tracks so i put some serious stress on them.
Since a guy that wants to simply daily drive his car probably won't change a single thing on his car we should understand that "Performance" mods are meant to increase something over the replaced OE product.
The stock coils won't suite some boosted applications for instance or won't last too long if abused on a NA car. That's pretty much it, you have to feel the need to change something or it will be useless anyway. Be it for sound, performance or longevity.
02-26-2009, 05:54 PM
#90
Metatron
iTrader: (1)
My 'stock' coils were rough from day-one, got my car early, July '03.
They would mis at 8k/9k, I just thought it was normal.
I bought a set of the redesigned Mazda coils and the difference was night/day, no missing all the way to redline.
Anyone who has '04 or '05 stockers should consider better coils.....
S
They would mis at 8k/9k, I just thought it was normal.
I bought a set of the redesigned Mazda coils and the difference was night/day, no missing all the way to redline.
Anyone who has '04 or '05 stockers should consider better coils.....
S
02-26-2009, 05:58 PM
#91
Registered
My 'stock' coils were rough from day-one, got my car early, July '03.
They would mis at 8k/9k, I just thought it was normal.
I bought a set of the redesigned Mazda coils and the difference was night/day, no missing all the way to redline.
Anyone who has '04 or '05 stockers should consider better coils.....
S
They would mis at 8k/9k, I just thought it was normal.
I bought a set of the redesigned Mazda coils and the difference was night/day, no missing all the way to redline.
Anyone who has '04 or '05 stockers should consider better coils.....
S
02-26-2009, 06:10 PM
#92
Has that issue regarding the Mazda part numbers and alleged "improvments" in the OEM coil been discussed and settled? I thought so but maybe I am mistaken. Plus, I gotta think that with 85 coil sets in the field that they aren't all being used on '04-'05 model years. 
Last edited by Charles R. Hill; 02-26-2009 at 06:12 PM.
02-26-2009, 06:12 PM
#93
From calculations...
Assumptions:
nominal gas mileage = 18 MPG
yearly travelled distance = 16000 miles
therefore gallons of fuel consumed = 888.89 gallons
Suppose the BHR coils provide a respectable 1MPG increase. Then the gallons consumed per year drops to: 842.11 gallons
A savings of 46.78 gallons. At a nominal gas price of $1.80 / gallon. This is: $84.02 / year of fuel saved.
In an alternate comparison. Let's reverse the situation and assume that BHR was the "norm" and thus the fuel consumption for OEM coils is negatively affected... this means...
Initial cost of BHR: $580
Initial cost of OEM: $120
Mazda also recommends changing coils every 48,000km (roughly 32,000 miles for ease of comparison)
BHR coils would remain flat in cost over the duration of the comparison.
OEM coils after year 1: $120 + $84 (extra fuel used)
OEM coils after year 2: $120 + $84 + $84 + $120(new coils)
OEM coils after year 3: $120 + $84 + $84 + $120 + $84
OEM coils after year 4: $120 + $84 + $84 + $120 + $84 + $84 =$576
If the increased mileage is true, and we are changing the OEM coils as per spec, the breakeven point for them would be somewhere around the 4 year mark.
The investment into BHR coils would be good if they will last beyond 4 years without fail.
Assumptions:
nominal gas mileage = 18 MPG
yearly travelled distance = 16000 miles
therefore gallons of fuel consumed = 888.89 gallons
Suppose the BHR coils provide a respectable 1MPG increase. Then the gallons consumed per year drops to: 842.11 gallons
A savings of 46.78 gallons. At a nominal gas price of $1.80 / gallon. This is: $84.02 / year of fuel saved.
In an alternate comparison. Let's reverse the situation and assume that BHR was the "norm" and thus the fuel consumption for OEM coils is negatively affected... this means...
Initial cost of BHR: $580
Initial cost of OEM: $120
Mazda also recommends changing coils every 48,000km (roughly 32,000 miles for ease of comparison)
BHR coils would remain flat in cost over the duration of the comparison.
OEM coils after year 1: $120 + $84 (extra fuel used)
OEM coils after year 2: $120 + $84 + $84 + $120(new coils)
OEM coils after year 3: $120 + $84 + $84 + $120 + $84
OEM coils after year 4: $120 + $84 + $84 + $120 + $84 + $84 =$576
If the increased mileage is true, and we are changing the OEM coils as per spec, the breakeven point for them would be somewhere around the 4 year mark.
The investment into BHR coils would be good if they will last beyond 4 years without fail.
02-26-2009, 06:14 PM
#94
Administrator
iTrader: (7)
Wasn't there a guy with an '08 whose coils went bad at 4,000 miles?
I'm waaaayyyy to busy right now to search for his posts, maybe someone else can find it.
I'm waaaayyyy to busy right now to search for his posts, maybe someone else can find it.
02-26-2009, 06:23 PM
#95
Registered
Wasn't there a guy whose Delphi coils were bad right out of the box? But I guess anecdotal 'evidence' doesn't really prove anything, does it?
02-26-2009, 06:54 PM
#96
From calculations...
Assumptions:
nominal gas mileage = 18 MPG
yearly travelled distance = 16000 miles
therefore gallons of fuel consumed = 888.89 gallons
Suppose the BHR coils provide a respectable 1MPG increase. Then the gallons consumed per year drops to: 842.11 gallons
A savings of 46.78 gallons. At a nominal gas price of $1.80 / gallon. This is: $84.02 / year of fuel saved.
In an alternate comparison. Let's reverse the situation and assume that BHR was the "norm" and thus the fuel consumption for OEM coils is negatively affected... this means...
Initial cost of BHR: $580
Initial cost of OEM: $120
Mazda also recommends changing coils every 48,000km (roughly 32,000 miles for ease of comparison)
BHR coils would remain flat in cost over the duration of the comparison.
OEM coils after year 1: $120 + $84 (extra fuel used)
OEM coils after year 2: $120 + $84 + $84 + $120(new coils)
OEM coils after year 3: $120 + $84 + $84 + $120 + $84
OEM coils after year 4: $120 + $84 + $84 + $120 + $84 + $84 =$576
If the increased mileage is true, and we are changing the OEM coils as per spec, the breakeven point for them would be somewhere around the 4 year mark.
The investment into BHR coils would be good if they will last beyond 4 years without fail.
Assumptions:
nominal gas mileage = 18 MPG
yearly travelled distance = 16000 miles
therefore gallons of fuel consumed = 888.89 gallons
Suppose the BHR coils provide a respectable 1MPG increase. Then the gallons consumed per year drops to: 842.11 gallons
A savings of 46.78 gallons. At a nominal gas price of $1.80 / gallon. This is: $84.02 / year of fuel saved.
In an alternate comparison. Let's reverse the situation and assume that BHR was the "norm" and thus the fuel consumption for OEM coils is negatively affected... this means...
Initial cost of BHR: $580
Initial cost of OEM: $120
Mazda also recommends changing coils every 48,000km (roughly 32,000 miles for ease of comparison)
BHR coils would remain flat in cost over the duration of the comparison.
OEM coils after year 1: $120 + $84 (extra fuel used)
OEM coils after year 2: $120 + $84 + $84 + $120(new coils)
OEM coils after year 3: $120 + $84 + $84 + $120 + $84
OEM coils after year 4: $120 + $84 + $84 + $120 + $84 + $84 =$576
If the increased mileage is true, and we are changing the OEM coils as per spec, the breakeven point for them would be somewhere around the 4 year mark.
The investment into BHR coils would be good if they will last beyond 4 years without fail.
02-26-2009, 06:56 PM
#97
02-26-2009, 06:57 PM
#98
Administrator
iTrader: (7)
02-26-2009, 07:01 PM
#99
02-26-2009, 07:29 PM
#100
Registered