Ignition coil 1990 PS190

[George Lyon]

I need to replace ignition coil. Does anyone know of a way to cross reference ignition coils to standard automotive types for that era? Boat has a Ford 351 in it, I think the MS p/n is 80929700. Thank you in advance.

[skinh2364]

I have the same boat, I will look when I get home.

[Skilavender]

I need to replace ignition coil. Does anyone know of a way to cross reference ignition coils to standard automotive types for that era? Boat has a Ford 351 in it, I think the MS p/n is 80929700. Thank you in advance.

Take it off and go to any parts store. They should have it in stock. Is it round cylinder shaped about six inches long?

[Creeklife]

Did you ever find out which coil?

[Shane21]

I have a question since we are on coils. My existing coil did NOT have the external resistor. I went on SkiDim and ordered replacement. When I get it, it has "Do not use without external resistor" stamped on it. Sounds like I just ordered the wrong one. What's the fallout from running it without the resistor? Should I just re-order one that CAN be used without the resistor? Thoughts?

[thatsmrmastercraft]

If you don't have a ballast resistor or a coil with the correct resistance you will burn your points or possibly damage your electronic ignition depending upon its design. I have a Pertronix Ignitor II and a Flamethrower II coil with 0.6 ohm resistance and no ballast resistor. You could also run a standard coil and a ballast resistor with this.


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[Shane21]

That's what I was afraid of. Thanks. Sounds like I need to get the right one before I go any further. Much appreciated.

[Teakind]

After mrmastercraft recommended the Ignitor II, I had to try it. A 30 minute install and it was ready for a wet run. I dropped her in the water to tweak the timing and the results were totally unbelievable. I hadn't installed the Flamethrower yet and I was flabbergasted at the improvement in the '89 351 performance. I was afraid the engine and transmission were going to take off on their own. I couldn't stay in the throttle from fear of the engine performing too well. I need to find a chance to install the Flamethrower. I may try to find a test pilot.
Thanks for the recommendation you guys.

[Shane21]

That's great to hear Teakind. I went ahead and took the plunge with a complete overhaul. I ordered the Pertronix Ignitor II and a Flamethrower II coil (along with new cap and rotor) as mrmastercraft recommended above. I had an original Prestolite system in before ('91). They are actually supposed to come in today. Hopefully i have time this week to install. I'll post updates when I do.

I'll tell you though, my 240SC (454 Indmar) already ran great, so if this upgrade does what you are saying, I'm in for a great ride.

[Creeklife]

I have a Prestolite EI distributor (looks like this http://www.mastercraft.com/teamtalk/...ad.php?t=11374). Where would the ballast resistor be located and what does it look like? I thought I had Points but when to replace and found that it was an EI conversion.

[Spork]

behind the ignition coil mounted to the engine itself

it'll look similar to this

[stuartmcnair]

REVIVING AN OLD DEAD THREAD:

I changed out my coil pack this weekend. All of the wires are on one side of the resistor. My new coil pack is for using without a resistor but the old coil pack said for use with a resistor. I have EI so I thought the coil pack should have been changed as well. It was the original that came on the boat as far as I know.