Re: Twins on a 1978 23ft center console
Tbone,
You didn't mention if you have a CC or cabin model. The cabin model would take the weight. I have a 1978 CC that has twin 115 suzuki 4 strokes. They were mounted on the transom and were slightly heavy. I now have a braket, enclosed transom and also went from an 8ft 150 gallon fuel tank to a 5 1/2 foot 100 gallon tank which moved some weight forward. The boat sits nicely and won't take on water though the scuppers unless you stand in the back corner. I just use plugs in the scupper holes. The twin 140's will sit low and overall i would recommend just going with a 250 or 300 suzuki. If I were to repower I'd get a 300 Suzi. It weighs mid to low 600's while my 115's tip the scales at 416 each.
Performance wise I get 25.5kts(10 gph) at 4000 and 39kts at 5950 spinning 23" ss props, non CR. The 140's would probably pick up 2kts.
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Capt. Brian
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