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    4 blade prop?

    I currently have a 13 x 17p prop that is recommended for my 89 OMC Cobra 2.3L. The manual says ideal WOT rpm's should be 5200-5600. I can only get 4500 max not pulling anything and only 4 people in the boat. I was thinking of going with a higher pitch 4 blade prop which in theory should get...
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    89' 2.3L OMC WOT not reaching RPM's

    I have a quick question. I have an 89 Sunbird Corsica with the 2.3L OMC Cobra. Manual says WOT should be 5200-5600 RPM's but I'm lucky I can get it up to 4500. I have the recommended prop so I would think it should get there. Any ideas or suggestions? I was toying with going with a 4 blade...
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    OMC Cobra TKO4 not reaching Ideal RPM's at full throttle.

    I have an 89 sunbird corsica 175 with an OMC Cobra TKO4 128hp 2.3L engine that isn't reaching the ideal rpms at full throttle. Ideal per the manual is 5200-5600 and i barely hit 4500. The boat and trailer together weight 2960. The prop is a Piranha 13.25 x 17. Can anyone lend some wisdom on...
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    Help with Buying a boat.

    I have the chance to buy a Sunbird Corsica 175. I'm not sure what year it is yet but as far as I can tell they were only make in 89, 90 and 91. It is in pretty good shape. OMC Cobra TKO 4 128HP. He wants $2500. What do you think? It has only been used 2 times in the last 2 years. I have...
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