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steve00

02-27-2018 07:55 AM

ignition coil

Hi all, I'm thinking about changing my stock mercury marine coil, not sure of the volts to an 45,000 volt aftermarket performance one 0.6 ohm low resistance by pertronix on a late 90,s 454 bravo engine , could this hurt ? guess i'm looking for better fuel burn /performance any thoughts thanks.

hallj

02-27-2018 08:09 AM

Is the engine still at the factory delivered 8.8:1 compression ratio? Did you add a super charger?

Jeff

steve00

02-27-2018 08:14 AM

Quote:

Originally Posted by hallj (Post 4612722)

Is the engine still at the factory delivered 8.8:1 compression ratio? Did you add a super charger?

Jeff

pretty much stock set up

Griff

02-27-2018 01:05 PM

You will gain nothing and lose reliability. Tried going to an MSD coil on my 525SC. No change in anything and it didn't last 2 years before it died.

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