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Old 12-15-2014, 07:24 AM   #1
bmech211
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SAAD Racing/Pro EFI S54 Ignition

Wanted to get some feedback from those who have switched from the stock S54 pencil coils to this set-up, which basically uses the Mercury Marine 1350 twin turbo engine coils.

I'm mainly interested in knowing the ignition timing differences, if any, between the two set-ups. These coils have about twice the output of the pencils, with considerably longer dwell and spark duration. Would this typically require timing retard by a couple degrees? Also, is there a noticeable difference in throttle response?

Thanks & B/R!
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Old 12-15-2014, 07:51 AM   #2
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Good Question... Subd
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Old 12-15-2014, 09:21 AM   #3
Twin_Turbo_S54
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OEM Bosch coils are more than enough.

Running on methanol for the last 7 years, M&W CDI, OEM Bosch Coils.

Bosch OEM coils work very well, you need to replace coils from time to time, not often.
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Old 12-15-2014, 10:25 AM   #4
bmech211
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Quote:
Originally Posted by Twin_Turbo_S54 View Post
OEM Bosch coils are more than enough.

Running on methanol for the last 7 years, M&W CDI, OEM Bosch Coils.

Bosch OEM coils work very well, you need to replace coils from time to time, not often.
What is your compression ratio and plug gap?
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Old 12-15-2014, 10:41 AM   #5
Twin_Turbo_S54
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Originally Posted by bmech211 View Post
What is your compression ratio and plug gap?
tested following compression ratios:

8,5
9,0
9,5
10
10,5
11
11,5
12
12,5

Spark plugs are NGK R2525-10, dont gap them, there is no tip to gap, they are installed as they come from factory.

I would spend Money on something else that will make your M3 faster, more durable etc.
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Old 12-15-2014, 11:14 AM   #6
bmech211
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Originally Posted by Twin_Turbo_S54 View Post
I would spend Money on something else that will make your M3 faster, more durable etc.
Well this set-up will run on stock DME and eventually 100% E85, so it's not the complete $1400 system that SAAD Racing sells; albeit I've got their valve cover bracket coming soon. The coils were purchased separately so all in all it's pretty reasonable for a high(er) output ignition system. Hell, the ID1000 injectors will cost me more than this set-up.

I still would like know if there's any timing changes that will have to be made, particularly on pump gas? Comparisons to stock coils aside, this system will affect the combustion characteristics (ie. flame front speed), and will be running on an NA motor while working out any bugs/building the fuel system.

Last edited by bmech211; 12-15-2014 at 11:24 AM.
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Old 12-15-2014, 01:04 PM   #7
Twin_Turbo_S54
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Originally Posted by bmech211 View Post
Well this set-up will run on stock DME and eventually 100% E85, so it's not the complete $1400 system that SAAD Racing sells; albeit I've got their valve cover bracket coming soon. The coils were purchased separately so all in all it's pretty reasonable for a high(er) output ignition system. Hell, the ID1000 injectors will cost me more than this set-up.

I still would like know if there's any timing changes that will have to be made, particularly on pump gas? Comparisons to stock coils aside, this system will affect the combustion characteristics (ie. flame front speed), and will be running on an NA motor while working out any bugs/building the fuel system.

Every S54 is different, Its not easy to comment on ignition figures.

Enjoy your coils in good health.
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Old 12-15-2014, 01:23 PM   #8
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Originally Posted by bmech211 View Post
Well this set-up will run on stock DME and eventually 100% E85, so it's not the complete $1400 system that SAAD Racing sells; albeit I've got their valve cover bracket coming soon. The coils were purchased separately so all in all it's pretty reasonable for a high(er) output ignition system. Hell, the ID1000 injectors will cost me more than this set-up.

I still would like know if there's any timing changes that will have to be made, particularly on pump gas? Comparisons to stock coils aside, this system will affect the combustion characteristics (ie. flame front speed), and will be running on an NA motor while working out any bugs/building the fuel system.

How are you going to run the ProEFI coils with a stock dme?

Last edited by MKampa; 12-20-2014 at 02:26 PM.
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Old 12-15-2014, 01:56 PM   #9
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How are you going to run the ProEFI coils with a stock dme?
Modified DME with IGBT's removed and re-terminated stock ignition harness.
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Old 12-15-2014, 03:55 PM   #10
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Sounds like Okadas are a better option for you if you are not running the ProEFI 128 ecu
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Old 12-15-2014, 03:57 PM   #11
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Also why would you need that much ignition if you are NA?
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Old 12-15-2014, 04:22 PM   #12
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Sounds like Okadas are a better option for you if you are not running the ProEFI 128 ecu
okadas are full of s...............t.
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Old 12-15-2014, 04:23 PM   #13
bmech211
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I'm going FI (turbo) and am currently piecing together ignition and fuel systems. I want to make sure everything runs as expected and though I know the software like the back of my hand, I prefer to work out any bugs while NA.
This is not the ProEFI ignition per-se, and the coils are not specific to that kit either. They are actually Mercury Marine coils which I've purchased individually from another source. My system still fairs a lot less than the cost of Okadas.
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Old 12-15-2014, 07:22 PM   #14
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Oh I gotcha, curious to see how it turns out!
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Old 12-20-2014, 12:06 PM   #15
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Kampa....okada coils are trash and not worth anything. All of the 1000+hp guys that ran okadas had break up issues up top. OEM is best. I've replaced a few since boosted in 2007. Im currently at 850whp at 24 psi. But running around on another few degrees and at 28psi now.....have not dynod at this level yet. Also last dyno at 850whp was 5th gear. I run full e85, IXU27 denso gapped to 21. Oem coil
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Old 12-20-2014, 12:26 PM   #16
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Originally Posted by InDiGlOM3 View Post
Kampa....okada coils are trash and not worth anything. All of the 1000+hp guys that ran okadas had break up issues up top. OEM is best. I've replaced a few since boosted in 2007. Im currently at 850whp at 24 psi. But running around on another few degrees and at 28psi now.....have not dynod at this level yet. Also last dyno at 850whp was 5th gear. I run full e85, IXU27 denso gapped to 21. Oem coil
Oh, I've heard good things about them and have seen good results. All I'm saying is that OEM style might be less of a headache than trying to run ProEFI coils with a stock ecu
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Old 12-20-2014, 01:59 PM   #17
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Okada's are garbage...even the Okada sponsored E46 M3 Turbo owners hate them.
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Old 12-21-2014, 11:48 AM   #18
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Last I heard you can only buy in sets of 6 also. So if one goes out your screwed
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