Bonjour à tous, et surtout aux possesseurs (comme moi) d'un allumage MSD.
L'article suivant recommande de monter une capacité (condensateur) sur le boitier MSD pour prolonger sa vie.
Il semble que de nombreux utilisateurs en soient satisfaits.
A la fin de l'article, la ref MSD ainsi qu'un des sites où trouver la pièce.
Wiring it up:
Hooking up an MSD is really very simple. The large red wire goes to the battery (after going to a capacitor first), and the large black wire goes to ground. The small red wire goes to ignition (+12 volts with the key on), and the small white wire goes to points (the wire that used to trigger the coil). The remaining two wires, orange and black, will go to the coils positive and negitive terminals. Make sure that nothing else is connected to either the orange or black wires but the coil. Also, make sure that any wires that get extended have at least the same size or larger wire used. If the MSD is installed under the hood (near its battery connection) it isn't necessary to use a fuse. If you will be installing it in any location that requires you to entend the length of the wire, you should add either a fuse or a circuit breaker.
Adding a Capacitor:
Here's the part you may have heard of, but never paid much attention to. Adding a capacitor when installing an MSD offers several advantages and is very benificial to a long lasting ignition. MSD calls it a "Noise Filter," but it is simply just a cap. Typically, these are used to help filter out any radiated noise from the ignition to your electrical system which can cause some radiated noise through your stereo. For most of us this won't be a problem. The important thing is that this cap also filters the power going to the MSD. This will prevent power surges and spikes from damaging the MSD. Things like jump-starting your car are very tough on sensitive parts, but using a cap will provide the protection you need.
At this point, you have the option of either ordering the MSD part (PN 8830), which is what I recommend, or going to your local electronics part store and picking one up. If you do the latter, you will need one of at least 25,000 microferrad and 16 volts. Anything bigger will be fine, but any larger than 50,000 microferrads will simply be overkill. Just make sure that it's at least 16 volts and not just a 12 V cap.
To install the cap, simply run the power lead for the MSD to the positive terminal of the cap. Then run a wire from this same terminal on the cap over to the battery. At this point you have two options: You can either run the negitive lead from the MSD much the same way - to the cap and then to ground, or you can simply ground the MSD and then ground the cap - independently. (Both methods are shown below) Either way will work just as well, just go with whatever install method you think will fit your install best.
Understand that adding the cap may be the one thing that makes the difference between an ignition that lasts the life of the car -vs- one that only lasts to the end of the year. After having installed around a hundred of these Ignitions, I can assure you it really does make all the difference. The only two I've ever seen go bad, didn't have a cap installed.
Noise Capacitor, 26 KufdFilters away EMI that is caused by MSD power cables and prevents damage from voltage and current surges.
https://www.holley.com/product [...] gHais2YKMw
Flip Top & Hard
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