excaleagle42

i replaced the points distributors last season in my excalibur with electronic prestolite's. i was thinking about putting in msd #2 blaster coils in for a little more pop but was concerned if i would smoke the stock ignition modules. will i see any difference if i do replace the prestolite coils with msd?
if someone would buy my donzi, i could afford the whole msd marine ignition thanks, Fran

kaamacat

Ecal.......Whether they be points, or, the electronic replacement you installed, the actual coil voltage does not travel that way, so you should be ok. The "points" are just a trigger for the coil to fire. (coil -> cap center -> rotor -> cap tower#x -> plug) In fact, I'm gonna replace my (yes original coils) with the Blaster2's also. Also plan on replacing the wires at the same time.

Bob

Ted G

iTrader: (1)

The elec ign should be able to handle the increased current draw from the blasters. I quick check will be how hot the box gets while running. If it seems to get real hot, real fast it is because the switching transistors are overheating- they will not last long if this occurs.

TomR

It is my understanding that with some points type ignitions that you have a ballast resistor to lessen the voltage to the coil after the engine starts, so as not to burn points to quickly.
When you convert to electronic ignition you want to do away with this ballast resistor wire so you get full voltage to the coil which is why HEI gives you a hotter spark .
Refer to the book "Big-Block Chevy Marine Performance" by Dennis Moore, some great tips!

Tom