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Placement of MSD ignition?

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Old 11-09-2006, 08:57 AM
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Matt O.
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Default Placement of MSD ignition?

Anyone go through this process already and come up with the best placement? Got mine via UPS last night and I'd like to install it today (after I fix the daily, my 1990 Acura's alternator went I think...)

Thanks,
Matt
Old 11-09-2006, 09:12 AM
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robert944h
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I've seen this one next to the battery, but I would be worried about water coming in contact with it.

Last edited by robert944h; 02-15-2008 at 09:21 AM.
Old 11-09-2006, 10:12 AM
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jgporsche
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When I get one, I plan on mounting it on a board with the DME, in the passenger floorboard
Old 11-09-2006, 10:56 AM
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tod84944
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If you install it like in the pic, where do you put the vacume acculator???
Old 11-09-2006, 11:34 AM
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In my '86 N/A I put it in the same place as the pic. I still have the plastic cover that goes over the blower motor. I just layed the vaccum tank next to the MSD and put the cover on top of it all. Have not had any problems with water getting on it at all. It's a snug fit, but it works nicely there.
For everyone wondering about how well an MSD works on these cars; it's only butt dyno, but it seems to run smoother and pull stronger. And it's smog legal.....for those who have to deal with that.
Old 11-09-2006, 12:48 PM
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Jfrahm
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on the shelf in the garage. Or on ebay.
Old 11-09-2006, 02:02 PM
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robert944h
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Today 06:56 AM
tod84944 If you install it like in the pic, where do you put the vacume acculator???

The same place that the early cars have it, unless you have cruise control.
Old 11-10-2006, 01:07 AM
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Riff
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I actually zip tied the accumulator to the cruise unit.

Old 11-10-2006, 01:28 AM
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sorry for to jack but what does this do?
Old 11-11-2006, 05:00 PM
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robert944h
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Hey Matt, how did the install go? Are you going on the poker run with the PCA on Sunday?
Old 11-11-2006, 09:05 PM
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Hi Everyone,

I would not mount the MSD next to the DME as was suggested earlier.

I've used these units for many years and they can develop Electro-Magnetic Interference (EMI) and affect the DME or any other computer in the car if they are placed in close proximity with out any grounded sheet metal to separate them. It's more important that they get cool air (minimal engine heat) and not necessarily stay dry, although that's always a plus.

Where the other Rennlisters are mounting them (next to the battery) is actually a very good place for them. I would just make sure that you do not sit directly on the bottom of the well as that area sometimes has drainage problems and can fill up with some water. When this happens for very long periods of time it can rot out the iron transformer laminations that’s inside the box and cause the transformer core to swell up possibly to the point of failure (ask me how I know). The electronics inside are weatherproofed so it doesn’t mind getting wet but it can't sit in a puddle for a very long period of time without problems.



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