Adaptronic V14 Wasted Spark AEM Coils Variable Dwell Settings
#76
I dropped the adaptronic a long time ago and moved to a haltech elite. Best upgrade ever. I'm sure the new eugene software would allow for the dwell to be plotted against map, but it may also just randomly grenade your car, so I'd stick with wari.
Skeese
Skeese
#78
Skeese
#79
Rotary Freak
iTrader: (10)
Would someone kindly explain why we want/need more dwell time at low rpm? Is this simply to maximize spark energy across the whole rev range by tapering off as rpm increases to prevent duty cycle violation? Does this result in more complete combustion (i.e. less prone to plug fouling)?
i was previously running direct fire with a fixed dwell, but revisited the various discussion threads regarding variable dwell on these coils.
i was previously running direct fire with a fixed dwell, but revisited the various discussion threads regarding variable dwell on these coils.
#80
Rotary Enthusiast
iTrader: (1)
That's a good question. I'm running the suggested table right now but I was thinking of lowering the dwell at idle to combat the low voltage issues. I chose a S4 80a alternator and it isn't quite enough to sit in traffic with the lights, wipers, and heater going in addition to the new ECU and ignition system. Actually, the heater blower motor seems to really suck down current/voltage by itself. Maybe I need to look at that instead of dwell times.
#81
Banned. I got OWNED!!!
1) To Help with Startup
2) Because the Period in which the coils have to charge is substantially longer at lower RPMs. Use it while you got it.
Skeese and I went through this painstakingly before with math and data. Just read the thread.
2) Because the Period in which the coils have to charge is substantially longer at lower RPMs. Use it while you got it.
Skeese and I went through this painstakingly before with math and data. Just read the thread.
#82
OG Member
I also use the variable dwell table suggested on here in direct fire. On my car i have a 150amp FD altenator. Upgraded alternator is highly recommended with this set up. The coils draw a lot of current at idle or any rpm with the variable dwel table. Ive messed around with lowering the dwell in the table. But noticed a difference in power so i put it right back. With the long combustion chamber of the rotary engine u want a long spark duration/dwell.
#83
After having typed out the response below on another thread where someone was referencing the RPM X Voltage dwell settings from this thread, figured I should update here as well. See below.
You'd be fine with running those in RPM X Voltage as shown in the table from that post as people have been using that setup for years without issue. That being said, I did move to MAP based dwell on when using the IGN-1A coils. I don't have any technical data to back it up, but the map based dwell theory originated when I was talking with @Monsterbox on how it was counter productive to be reducing the dwell at high RPM to help prevent the coils from overheating from extended use at high duty cycle. While you DO have to ensure that the coil dwell stays within the allowable time for the combustion cycle window, ideally you want to ramp up dwell as as you move into higher RPM that is when you actually need more dwell and more output spark to light a high pressure mixuture of E85 or 93+W/M.
The data sheet for the coils specifies:
I'm sure some of the 'professional' t00ners out there will disagree, but half of them are copy and paste hacks that never think beyond the surface application to understand how any of this all really works anyways.
Don't hesitate to hit me up if you have any questions about any of the the coil/dwell setups. I run a haltech now, but the same theory applies all platforms (so long as they don't randomly fry themselves and need replaced mid-pull...cough adaptronic cough cough).
Skeese
You'd be fine with running those in RPM X Voltage as shown in the table from that post as people have been using that setup for years without issue. That being said, I did move to MAP based dwell on when using the IGN-1A coils. I don't have any technical data to back it up, but the map based dwell theory originated when I was talking with @Monsterbox on how it was counter productive to be reducing the dwell at high RPM to help prevent the coils from overheating from extended use at high duty cycle. While you DO have to ensure that the coil dwell stays within the allowable time for the combustion cycle window, ideally you want to ramp up dwell as as you move into higher RPM that is when you actually need more dwell and more output spark to light a high pressure mixuture of E85 or 93+W/M.
The data sheet for the coils specifies:
- Max Continuous Dwell: 9 mS but don’t exceed 40% duty cycle
- Max Intermittent Dwell: 80% duty cycle, 5 seconds maximum
I'm sure some of the 'professional' t00ners out there will disagree, but half of them are copy and paste hacks that never think beyond the surface application to understand how any of this all really works anyways.
Don't hesitate to hit me up if you have any questions about any of the the coil/dwell setups. I run a haltech now, but the same theory applies all platforms (so long as they don't randomly fry themselves and need replaced mid-pull...cough adaptronic cough cough).
Skeese
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