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92Optispark

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Rsmi51

Guest
I have 50K miles on car and want to change the optispark before have any problems. Has any used either the Dynaspark or the MSD? Wich one is better? I have also thought about using a new GM and doing the converison on it. Any thoughts?:confused
 

Hib Halverson

Technical Writer for Internet & Print Media
Joined
Jan 10, 2001
Messages
13,453
Location
CenCoast CA
Corvette
71 04 12 19
I wanna see one of these ZR-1s with an Optispark
:)

No LT5 has an Optispark ign, only LT1 and LT4, but if it were me, I'd use the MSD.
 

bldavis11

Member
Joined
Mar 5, 2006
Messages
8
Location
New Orleans, LA
Corvette
1991 Arctic White ZR-1
Fortunately, our Z's don't have to worry about an Optispark or any of it's problems. There is an ignition module that is bolted to the underside of the plenum and controls 4 coil packs which provide the energy to the plugs. You shouldn't have much problem with this unless you start trying to wash your motor. All of these things are under the plenum and above the valley in the block.

Hope this helps.
 

94conv.

Well-known member
Joined
Jun 16, 2003
Messages
446
Location
Indiana
Corvette
1994 red convertible
Dynasparks the best, I have one on my 94 with the upgraded vaccume lines, one T's off the manifold and the other just plugs into the airduct. Its best to do wires and plugs at the same time since your digging that far into it.
 

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