Coil Dwell, I don't think its right causing weak spark.

[Street gear]

Originally Posted by Street gear

Ok I read through almost 8 pages of threads and just want to know what is the fianl setting? I make around 700 WHP so is it possible to run a reliable setup at my level using stock evo 8 coils? If so what is the recommended EMS settings?

Bump for answers what happened to everyone on this thread

[GTVEVO]

Originally Posted by Street gear

Bump for answers what happened to everyone on this thread

The settings I have recommend put the dwell cycles at around 62-63% max charge time, I have listed them down below.


Coil Options
------------------------------
Coil Dwell Factor = 35
Dwell Max = 1.25
Dwell Min = 0.10


Dwell vs Batt Volts Table
------------------------------
6 = 80.86
7 = 80.08
8 = 77.34
9 = 74.61
10 = 71.88
11 = 69.14
12 = 66.41
13 = 60.55
14 = 54.69
15 = 49.61
16 = 49.22


Dwell vs RPM
------------------------------
0 = 75
800 = 75
1600 = 75
2400 = 80
3200 = 85
4000 = 95
4800 = 105
5600 = 105
6400 = 105
7200 =105
8000 = 105
8800 = 105
9600 = 105
10400 = 105
11200 = 105
12000 = 105
12800 = 105

[Street gear]

Thanks a million bro has these settings been tested to 700 WHP? Also what gap are you running .022 or less?

Originally Posted by GTVEVO

The settings I have recommend put the dwell cycles at around 62-63% max charge time, I have listed them down below.


Coil Options
------------------------------
Coil Dwell Factor = 35
Dwell Max = 1.25
Dwell Min = 0.10


Dwell vs Batt Volts Table
------------------------------
6 = 80.86
7 = 80.08
8 = 77.34
9 = 74.61
10 = 71.88
11 = 69.14
12 = 66.41
13 = 60.55
14 = 54.69
15 = 49.61
16 = 49.22


Dwell vs RPM
------------------------------
0 = 75
800 = 75
1600 = 75
2400 = 80
3200 = 85
4000 = 95
4800 = 105
5600 = 105
6400 = 105
7200 =105
8000 = 105
8800 = 105
9600 = 105
10400 = 105
11200 = 105
12000 = 105
12800 = 105

[GTVEVO]

Personally I run a gap of .24 on my plugs, I believe 700 hp has been achieved on the stock coils with the AEM and setting of this sort. At 700hp +/- the stock coils will be tapped out though so keep that in mind. Regardless these settings are going to get you as close as possible with what you have.

[El Boricua]

One Q....

Does the Dwell Settings affect the cold start..? or the starting of the car at all..?

Thanks,

[GTVEVO]

Originally Posted by El Boricua

One Q....

Does the Dwell Settings affect the cold start..? or the starting of the car at all..?

Thanks,

No, the only thing it could possibly do is cause the car to start better but I honestly haven't noticed much if any differences.

[El Boricua]

Thanks....
I must check the condition of my spark plugs then... Also, I removed the HKS DLII to test these settings... that's might be why I'm feeling the car s little different..!!

Thanks again.

[Street gear]

Originally Posted by El Boricua

Thanks....
I must check the condition of my spark plugs then... Also, I removed the HKS DLII to test these settings... that's might be why I'm feeling the car s little different..!!

Thanks again.

You made an interesting point I have an M&W 12 box do I use the same settings as posted.

[GTVEVO]

Originally Posted by Street gear

You made an interesting point I have an M&W 12 box do I use the same settings as posted.

Keep in mind the HKS DLI is a quality enhancement box and not a standalone CDI box like the M&W 12. The HKS DLI usually helps the quality of spark, the changes we are making is causing more spark energy and charge to move into the DLI box (if used) so it will do the same task it always has still trying to improve the quality of energy and its consistency.

The CDI box or M&W 12 is actually making/storing and amplifying large energy quantities to send to the coils with just a signaled event, you would only run the CDI settings in the AEM wizard of you use a CDI box due to the square wave signal needed in most cases to achieve the best ignition results.

[Street gear]

Originally Posted by GTVEVO

you would only run the CDI settings in the AEM wizard of you use a CDI box due to the square wave signal needed in most cases to achieve the best ignition results.

Sorry I did not fully understand the part quoted. Are you saying just run the Aem wizard based on the CDI box I am using and use the default settings it gives you?

[GTVEVO]

Originally Posted by Street gear

Sorry I did not fully understand the part quoted. Are you saying just run the Aem wizard based on the CDI box I am using and use the default settings it gives you?

I am saying if you use a CDI Box that my settings will not give you any gain because the CDI box discharges power upon its own strategy. It only reads a signal from the AEM to know when to discharge. If you do not use a CDI box my settings will greatly improve the charge on the stock coils.

The HKS DLI is not a CDI box so you can and should use the settings posted above.

[Street gear]

Originally Posted by GTVEVO

I am saying if you use a CDI Box that my settings will not give you any gain because the CDI box discharges power upon its own strategy. It only reads a signal from the AEM to know when to discharge. If you do not use a CDI box my settings will greatly improve the charge on the stock coils.

The HKS DLI is not a CDI box so you can and should use the settings posted above.

Thanks for clarifying that point bro

[El Boricua]

GREAT info... thanks,