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Old 09-04-2010, 06:54 PM
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Using Jacobs nitrous mastermind with a MSD Pro-Billet HEI

Reading the directions on the Jacobs NMM it says that it must be used with an aftermarket ignition box like a 6AL. By looking at the given wiring diagrams it looks like I could wire the NMM between the distributor pickup and the ignition module in the distibutor. Anybody think this would be a problem? My Pro-Billet HEI works perfect and I don't want to add any unneeded stuff to the picture(6AL Box).

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Old 09-05-2010, 03:09 PM
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That appears to be correct.
The NMM controls the spark timing and features an adjustable rev limiter.

Did you see this? ---- www.jacobselectronics.com/pdf/NMM_PT1.pdf

Last edited by vicrod; 09-05-2010 at 03:17 PM.
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Old 09-05-2010, 03:12 PM
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Linky no Worky
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Old 09-05-2010, 03:17 PM
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Link is now working.

vicrod
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Old 09-05-2010, 03:57 PM
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would there be a problem with the pickup not generating enough signal to run both. Seems to me I saw something about that in the msd site.I think they recommended a tach adapter (probably an amplifier) to do just that. Just asking..dont know myself.
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Old 09-05-2010, 05:44 PM
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I have never installed one of these controllers but the detailed instruction book implies that the NMM is compatible with all types, although it doesn't mention this one (6al) specifically, of electronic and point type ignition systems including non distributor ECU systems.
The NMM takes the pulse data and regiggers it to retard timing and limit revs and who knows what else.
The 6al provides the high voltage juice for spark. Also it has a rev limiter. I would set the 6al rev limit a little higher that NMM.

vicrod
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Old 09-06-2010, 10:30 AM
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My Pro-billet HEI has a rev limiter built in to the module. What I'm wanting to know is if I can use the NMM WITHOUT an ignition box like a 6AL. Looking at their diagrams it looks like if the NMM was wired between the pickup inside the distributor and the MSD HEI module(also inside the distributor) it would work fine. Does that sound like it would work?
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Old 10-31-2010, 03:31 PM
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MSD 8365 hei

If your just looking to retard timing for nitrous The MSD 5462 retard will be much simpler and much cheaper here's the link for the wiring: http://www.msdignition.com/assets/0/...dd418971fe.jpg
I have the 8365 distributor myself and am planning on hooking up the nitrous system as soon as my controller arrives.
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