huzer21

iTrader: (1)

Well, I've gone through the first few tanks since the ignition swap. The biggest story thus far is mileage. I've had a couple of "city only" tanks, that have had close to zero highway miles on them. I'm averaging 18.3 city now. I was honestly getting below 15 before, averaging around 14.3 on city-only tanks. Keep in mind, these are tanks that have absolutely NO highway miles, thus the lower numbers. I've only had 1 tank since the swap that was primarily highway (6th gear, cruise on 84 mph, with a few bursts here and there), probably about a 90/10 split. That came out 26.1 mpg.

So, mileage comparison:

Before: 14.3/21.2
After: 18.3/26.1

Pretty decent improvement there, if you ask me. No other changes were made, nor were driving habits altered in any way. I'm pretty diligent about documenting mileage, so the "before" numbers are measured from when I know I had 4 good coils. Or at least, 4 functioning coils. There's also a small power increase (verified on dyno, and an improvement in top end smoothness (from 7-7500+ in my car prior, it kind of felt like it was running out of breath. Not the case now). It was also nice that I filled up yesterday for under $30.

So better economy, more power, hopefully more durability, and an easy install rates this as an A in my mod list. Even for us NA folks, there is enough of an improvement where I would recommend. Naturally, everyone's mileage and power results may vary.

Jedi54

iTrader: (7)

holy smokes, those are awesome mpg figures. I need to stop redlining so much from stop light to stop light.
dyno figurs you say???

tunerwannab

iTrader: (1)

I was waiting for a thread from people who have this kit! This is very good news. I would like to see some results of how well it runs with people who also have a MM AP. Sucks for me because I think I am # 4,548,291 on the list for the kit. Keep us posted.

huzer21

iTrader: (1)

Since I haven't scanned the dyno sheet, and now can't locate since the wife cleaned house, I didn't want to post numbers. I'll call the shop and see if he can email me a new one. Curve is identical to my last curve (run when testing the AP last March). Just peaks slightly higher now. I'm pretty pleased, though. AP +Ignition has added 18hp and about 5 lb-ft to the car. Ignition accounts for 8 hp and less than 1 ft-lb peak overall. Unfortunately, I can only speak to peak numbers, without having the charts to overlay. Ignition and AP are the only engine mods made to the car. Stock airbox/cat/exhaust/etc. I plan on playing around with a few things over winter, and making another run on the dyno come springtime. So far, my car has seen the dyno 3 times and has gone from a stock baseline of 171, to 181 with the AP, and 189 with Ap+Ignition. Different ambient conditions when the last dyno was run, probably about 20 degrees warmer, but all other conditions (baro, humidity) roughly the same.

I'm not guaranteeing anyone will see the same results at all. These are just the numbers for my own car. I'm most impressed with the increased economy.

Quick edit: My AP is running the stock Cobb Stage 1 map, I don't have any MM maps as I received my unit from Cobb.

Highway8

iTrader: (11)

I have the mazsport kit because it came out first and I to had soem improvement in MPG. I would prefer the BHR kit because it is more straight forward, the mazsprt requires some slight modification. I think both should preform almost identical, stronger spark equals more power and MPG.

Now as far as the results shown by the OP, I find those hard to believe. He is showing an almost 30% increase in MPG for intown driving and 20% for highway. If those are legit then he had some weak coils and or fauled plugs. Not to mention the first set of numbers for the intown driving seem a little lower then stock and the post coil swap numbers seem a little high.

I think the coil upgrade is a great modification but I would not expect anyone to see anywhere close to a 20% increase in MPG. 5% tops.

huzer21

iTrader: (1)

I can post Excel spreadsheets if you like, but anyone can claim they're fudged. I can only document what I have personally seen. Whether or not it's believed, I don't care. Just wanted to share what I have seen with my car. Prior to the coil upgrade, I had seen anywhere from 12.9 (yuck) to 15.5. The cumulative average in the year I've owned the car has come to 14.3 for city mileage. Who knows, maybe I've received bad gas. When in town (which is 95% of the time) I've always filled at the same station. The highway mileage, I've only taken 3 road trips in the car, each required at least two tanks of gas. The 21.2 figure comes from a round trip to KC from Denver, which was prior to the coils. So that was the average over 6 tanks (may have been 7). The 26.1 is over a trip that required 4 tanks of gas. The 18.3 is figured over 2 tanks of city driving.

So, I'll report back a year from now (since that's the historical baseline data I have) and see if I still have roughly the same results. Honestly, I have no reason to mislead anyone. My previous coils and plugs were replaced under warranty at 23,778 miles. I currently just hit 40,450, and have had the new coils on for 1692 miles. So my oil coils/plugs had 14,980 miles on them. When I swapped the plugs, they didn't look bad, but figured I may as well swap them while I was messing around with the ignition. Could the coils have been weak? Sure. I still have them, so I can test them and see.

Edit: That's why I don't like posting results/impressions on this forum as they're immediately doubted. Note that I DID say these were only the results for MY personal car, and that results may vary.

636

^^^ Nice man , good to know you got such an improvement. Hopefully i will see a dramatic change in mpg , but mainly want the ignition upgrade once i go turbo. But meanwhile my car is N/A , the better fuel economy is never a bad thing .

volcomx31

iTrader: (4)

sounds great

Macius8

iTrader: (3)

It seems the opposite for me. My gas mileage went down. Before I was averaging between 185-200 on a gas tank, from a full tank until the fuel light came on. Now I average less then 170. At first I thought I had a heavier foot since it seemed there was a little more oopmh at higher rpms, but that feeling quickly went away and gas mileage remained the same. I went through several gas tanks since swapping the coils and same results. I still have my old coils so I'll probably switch for a little just to see if there really is a difference or if something else is contributing to the poor fuel economy, however I dont have my old plug wires anymore. Anyone want to send me a set when you switch to bhr coils?

Jedi54

iTrader: (7)

clear the ecu, it'll make the car relearn the fuel trims.

RK

iTrader: (1)

What plugs are you using and did you change brands when swapped out?

volcomx31

iTrader: (4)

Macius doesn't have the complete BHR kit?

r0tor

iTrader: (1)

can't comment either way with mine... after the install my high flow cat officially **** the bed and then the weather got really cold so my gas mileage is going down like normal with the longer time to warm up

-shrug-

nuke0907

iTrader: (2)

no pics?

cheeto

i have seen it in person on huzer's car. it looks awesome

Easy_E1

iTrader: (2)

Thanks Huzer21 for that nice write up. If there is anything BHR can do for you please don't hesitate to ask.

We're here for our customers.

Macius8

iTrader: (3)

I do have the complete kit. I replaced the pugs as well from ngk

volcomx31

iTrader: (4)

that's odd..could be something else

diabolical1

to the original poster (Huzer21), thank you for sharing your experiences and data. i'll be looking for more of these threads about the BHR ignition because whenever i fix my car and can expect the stock coils to crap out again, that's what i plan to replace it with.

i'll be most interested in seeing what time shows about the BHR parts when compared to the stock fare.

05rx8mazda

iTrader: (4)

I have the mazsport coils and i am curious about these... I get around 16 MPG in city but i dont drive conservative.. i drive like i stole my car....

my highway mileage the best ive gotten was only 24.9 MPG which is decent compared to when i was stock 21.2 MPG.. i have to get my data logs to jeff.. i let jon at ptp look at the 4th gear cruise speed of the log i did and he said the car is running rich and that there was no need to. soo im hoping once jeff hooks me up with a newer map i can achieve slightly better highway gas mileage.

how do these differ than the mazsport ones? i mean i have nothing but great things to say about mazsport coild except the long wait.

Id love to see some pictures of these bad boys!!!

Keep up the good work BHR! and that turbo kit.. if you ever get to it.. id like to place a order once the wait has come down hahah here in a two months or so...

cheeto

for sure.

huzer21

iTrader: (1)

Well, here is one quick pic...one prior to install. Granted I'm not the best at high quality photos. Haha. I'll be getting back in there tonight, as I received the new and improved plug wires this weekend. I'll snap some updated pics then.

I know Juice has MUCH better pics in the "offerings" thread.

Easy_E1

iTrader: (2)

Those look awfully familiar to me. I've seen them somewhere before.

Let us know how the install goes. And thanks for posting a pic.

nycgps

iTrader: (1)

sweet pic. thx for sharing.

Ross_Dawg

iTrader: (2)

ah I want this! and some new plugs too...