I would not use an old ZW without modern fast acting breakers or fast blow fuses or both for any modern engines. The Z4000 is a modern transformer and is better suited for modern engines. A modern ZW-L or the Powerhouse 180's for command control would be my preference. However, the Z4000 may be a better choice for PS1 engines than the ZW-L? I only have PS2 & PS3, no PS1's.
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