Pantera EFI

We, Pantera EFI (ETG group) ARE the supplier of the IGN-1A coil to AEM and the other retailers.

MY REASON is not to disturb this process, just to PROVIDE quality tech support.
We make OVER 200 different coils, MANY coils are provided to major OEMs for their NEW cars.
My contact phone # is 949-250-1797 (panteraefi@lance.occoxmail.com).

The BEST method would be to create an IGNITION "sub" forum.

Many times I find in a thread, the end user connected them incorrectly OR just calibrated their EMS with incorrect setting when "miss-fire" occurs.

MOST cases of IGN-1A fitment work better than all other tried methods of producing the required spark, the ignition.

THUS, just ask me for help when a problem occurs.

Lance Nist

Turblown

iTrader: (12)

Lance,

It is great to see you here. We have had great success with your coils, and you will find the majority of this forum uses them and or wants to upgrade to them. I am not claiming responsibility at all for this. I find a lot of people are running your IGN-1A coils in wasted spark on a rotary. Would you mind chiming in on this. I swear we spoke a long time ago and this was not recommended, and it does not appear to be a good idea based on your published documentation that comes with the coils.

https://www.rx7club.com/adaptronic-e...-fire-1033930/

Pantera EFI

The IGN-1A coil will work well @ 5 ms dwell with 8500 RPM MAX.
The dwell could be a little higher with NO MORE than 6 ms at that RPM with a 90% duty cycle, 100 % duty cycle WILL FRY any coil.

That setting will produce 150mj which is GREATER than many full time CDI's

MY requests are for a modification of the 18 volt supply protection diode to a 36 volt discrete.

This part IGN-1AV could be created for the HIGH BOOST need allowing a quicker charge time when coil supply was with a 24 volt battery/charging system.

What are this forum's thoughts ?

Lance

Slides

That would definitely be good for high rpm/high boost setups to avoid moving to CDI, even with the cost of a voltage booster it would be cheaper than buying a decent CDI box let alone coils to match.

Do you have data on saturation time vs supply voltage, I know these things don't always follow theoretical mathematical relationships perfectly.

C. Ludwig

iTrader: (27)

You can charge the coil to 3ms (100+mJ output) at 8000 rpm IN WASTESPARK and only achieve 80% duty on the leading. Well within Lance's specs. What's to question?

EB Turbo

iTrader: (1)

What about running these coils on 16volts? Use the same Dwell times?

EB Turbo

Pantera EFI

The IGN-1A coil's internal discrete power clamp diode is rated@18 volts
This type of part could pass a small current to ground beginning at 17 volts.
Thus when charging a 16 volt battery disconnect the coil power feed.

The coil IS tested at 16 volts with changes in coil dwell the achieve the same energy output.

Example : 85mj = 2.05ms@14 volts OR 1.68ms@16 volts.
This is with an eight AMP current limit.
The IGN-1A coil was designed for HIGH SPEED two stroke engine use.

What is your use ?

Lance

Vicoor

So, does the increase in charging voltage allow you to get more spark energy? Or does it only allow for faster charge time?

bumpstart

if you run an ignition voltage booster ( like ICE etc ) then the dwell period ( charge time ) comes down lower ( for the same spark energy )
that will make a wastespark setup ( which strikes the leading twice per combustion event )
go beyond 9000 rpm without running the coils to 100% duty


ie.. there is 6.66 ms for sequential fire ecus at 9000 rpm for each ignition event.. plenty of period to run as much as 5 ms dwell time
but a wasted spark leading ECU has only 3.33 ms at 9000 for each ignition event
as such, you cant run more than 3 ms if you still wish to run the engine to 9000 rpm

having 16 or 18 V ignition booster ( on a wastespark ecu ) allows you to set it at 2.5 or 2.75 ms
.. and have the same spark energy as those with sequential ignition past 9000 rpm

conversely..if you ran 16V with lots of ( or almost unlimited ) dwell time, you may get more energy, but usually risk splitting a coil if it not protected
( they usually split the case and arc to the wiring or earth )
or worse, have an untimed ignition event because the coil / driver is current limiting and has achieved 8 amps early,, so lets the spark fly ( early )
.. this is potentially engine killing

C. Ludwig

iTrader: (27)

Not necessarily. More voltage will allow you to achieve the same energy level more quickly. So, if you're not charge time limited, there is really no advantage to upping the input voltage.

Quite simply, if you are in a position where you need more than 100mJ of spark energy, one would think you've moved passed the use of an ECU that only allows wastespark operation. If that's the case and you have a direct-fire configuration, there is plenty of dwell time available to produce all the spark you'll ever need without resorting to voltage boosters or 16v systems. The beauty of this coil has always been that it's a one part solution. No need for a CDI box, external ignitor, voltage booster, etc. Stop trying to complicate it.

The IGN-1A is not internally limited. It will not auto discharge.

Vicoor

Thanks, that's the way I thought it was, but I thought I'd pry it out of someone with more "authority" so it would stick.

It seems odd to me that people who are supposedly seeking "big power", would stick with ECUs that are limited to waste spark, even though it is obviously holding them back.

EB Turbo

iTrader: (1)

13b Rotary Drag car. It is a total loss system, So no alternator. That is why we are using 16v.

EB Turbo

Pantera EFI

OK, sounds fine, just "disconnect" the battery from the coils when the battery is being charged.

NOW for "bumpstart" your math 9000=6.66 is OK
Your dwell of 5ms is OK for duty cycle safety.
Most here use four coils, two leading/two trailing.
Some here use six coils 20B three leading/three trailing.

EXPLAIN WHY/HOW one would fire a coil at TDC AND ALSO at 180 degrees.
What would be the reason ?
How is it possible to "wast spark" a rotary, a two stroke engine ?
I may be missing something.

My Rotary ECU fires the coil once per cycle.
My knowledge states that there is no other method.
What am I missing from what you report ?

Lance

Rotate86

Factory ecu runs wasted spark. Both leading fire at same time. So one is event is correct ignition event and the other is 180deg out and is firing in the other rotors exhaust stroke.
This is on leading only.

bumpstart

zebbi has it covered,, s4, s5 and FD ecu drive a dual post coil ( on the leading only ) that fires in wastespark.. thus the factory ecu's are only 3 driver channels
.. s4/5 is actually 2 drivers, ( leading and trailing ) and a flop command for the trailing coil so it lines up with the correct chamber
and the FD is a true three channel setup
( as distinct from 4 channel fully sequential ignition on most modern aftermarket ecus )

the trailing coil is not wastesparked .. this is because when 180 out the trailing plug is still lining up with the incoming chamber still undergoing compression

the leading sparkplug however , when 180 is lined up with the chamber that is finishing expansion and opening the exhaust port

wastespark leading has its role in burning out the end combustion products and thus cleaning up the exhaust and aiding in scavenging
( less end products make it to the chamber starting its inlet opening phase )

this suits mazda trying to pass low rpm emissions
having a 2 or 3 channel setup also helped them cheap out with the ecu and coil costs, and get around the slow clockspeed on the early ecus

it does however limit those of us needing dwell time for extra spark to support high boost and 400 + hp

sergejcik

hi can i buy directly from you?

do you sell kits for rx7 mazda ign-1a or similar, im looking to buy kit for strong spark , (smart coil system)
thanks

Pantera EFI

Hi, sure you can purchase direct, just a quick interview is requested.

Just call/E-mail your phone #

Lance 949-250-1797

freddyrx3

iTrader: (14)

I run these on a 16V battery with Methanol at 40PSI of boost. Car is running really well.

nyt

iTrader: (1)

Just installed a set of these from Pantera. Thanks, Lance!

https://imgur.com/a/n5sSBbT

GrapeSoda

Hi, Reviving a dead thread for my question, Do the OEM leads fit the IGN 1A coils? Ive got some NGK leads that fit the oem coil packs, Want to know If i can use them with the 1a igns since my wires are pretty new,

cr-rex

iTrader: (114)

No they dont