Brettus

iTrader: (2)

I doubt very much that the ECU will make any adjustments over time because I doubt that the AFRs are any different in closed loop which is where the ECU gets its information to make the LTFT changes .

MazdaManiac

iTrader: (3)

Weather changing down there?

r0tor

iTrader: (1)

I don't doubt it as there are gains shown in the 4-6k rpms range which is closed loop depending on the engine load and gear selected...

I'd love to see if they had an interceptor-x car have a predyno, installation and readjustement of afr, then a post dyno... then you'd see if its at all useful for a NA car... that or at least Scott to come back and explain some contradicting NA information

Mazurfer

Usual for that two months out of the year where it's not around 90+ is what he meant to say! Even at that...........during those two months it can flirt with 90.

MazdaManiac

iTrader: (3)

Has the baro changed?

Brettus

iTrader: (2)

The only way you can get your car to run in closed loop at over 4000rpm is downhill with virtually no throttle . It hardly EVER happens - yes I've tried !

r0tor

iTrader: (1)

the cz boxes failed because of that logic... i spent enough time fixing enough people's maps

Mazurfer

In Florida?..............yes, as fronts push through on about a three-four day cycle it will change. Front comes through and high pressure takes over....and it rises (probably spikes in two days time) and heads back down until next front arrives. We just got a front Friday and Saturday, so it's currently after a peak. Currently at 30.22 and falling.

Brettus

iTrader: (2)

didn't the CZ just adjust the reading from the MAF ? A flawed logic to start with ...

r0tor

iTrader: (1)

I went 3 years without having to readjust it... was fine unless you started to mess with the 4-6k rpm range or below (which some people just felt like they needed to for whatever reason ).

Brettus

iTrader: (2)

you must have a lot of long high speed downhill roads over there because I've found even on a downhill if you touch the throttle over about 3700 rpm you go into open loop .

I set my piggyback to make fuel adjustments over 25% throttle under 3500 rpm and 5% throttle over 4000rpm and my LTFTs never appear to interfere with the tune . last time I looked it was negative 3.5%

We don't even know at this point is if the coils cause leaner running at any point in closed loop - it could be only under load that it happens .

shaunv74

Well I might think the coils will drive actually adding more fuel and getting more power.

Please let me know if my logic is flawed:
1)Crappy OEM coil farts out puny spark which in turn burns some fuel and air and makes some power.

2)O2 sensor sees extra fuel and air due to crappy combustion and extrapolates AFR is too rich so it pulls some fuel because it's not getting burned.

3)AFR is now on target because there is less overall fuel left in the exhaust but at the end of the day it's because we don't burn as much as we could, not because it's best power/efficiency.

4)Enterprising RX8 owner installs hi-powered singing and dancin Mazsport Popeye ignition coils

5)New Coils fire off massive amounts of high speed low drag negative electron wielding spark igniting every last fuel molecule in the combustion chamber causing smiles and grins and wails of pain.

6)There is much rejoicing.

7)The O2 sensor sees less unburnt fuel and tells the PCM "put the spurs to it" and now adds more fuel since there is less unburnt fuel in the exhaust.

8)rinse repeat and we now get more power because we're burning more fuel at the same measured exhaust gas mixture.

SkyLee

did you guys see little gains in your guys cars with the coils???

Razz1

That's what all the girls tell me.

Vasichko

iTrader: (1)

I have some questions since Im ready to drop the ball on the coils.

What color are the plug wires? Im wanting red or black.

Also, how long of a wait for me to get these things after I have paid?

Mazurfer

Plug wires are blue only............that was discussed above. I ordered mine on pre-order before the deadline at the first of the year, and I'm still waiting.

I actually was 13th on the list that was running here and paid on 12/29/2007, but there were others that got in on the actual website beforehand.

I think this is due to just the backlog at start up into production, but maybe Scott and clue us in?

RWagz

Scott already said they're shipping them as fast as they make them. Don't forget that they were on the Mazsport website pretty much as soon as he announced them here, so he probably has a hefty amount of non-RX8Club orders to fill as well.

I want these and am about not ordering at lower price but they're still a great value at $600

olddragger

iTrader: (3)

to me --- water meth kits sound better all the time.
OD

MazsportScott

Hey guys,

The horsepower increase appears to be related to more complete combustion. I have been checking the LTFT's and they are changing very slightly on the N/A vehicles running our Ignition Solution.

The components are available individually if replacements are needed down the road. BTW, the parts in the photo's posted in this thread ARE NOT the exact components used in the kit, I would STRONGLY recommend contacting Mazsport for any warranty or replacement items.

I will try to keep up with this thread and will continue shipping Ignition Solutions as quickly as possible, Scott

MazsportScott

Or worse, they will not function the same!

Any warranty concerns should be handled through Mazsport.

invasion08

iTrader: (7)

Ok LTFT's means Long Term Fuel Trims, but what does that mean in simple terms? Will MPG be effected?

MazdaManiac

iTrader: (3)

Long Term Fuel Trims.

invasion08

iTrader: (7)

I found that out but how will this effect the rx8's mpg's

shaunv74

My guess would be an improvement when you're not hammering it. Better combustion should lead to an efficiency gain=more power and better gas mileage. But I'm not the expert.

Brettus

iTrader: (2)

yay - 30 mpg rx8s FTW !