We extend to you a cordial "WELCOME ABOARD !" Come on in, make yourself at home, we are a friendly group of enthusiasts, and we also appreciate the classic Chris Craft Roamer, Corsair, and Lancer boats too , as they are all on the same family tree and share much in common ! Just start by posting a note introducing yourself to the group, that's all it takes here (we don't ask for or retain any personal information here, because our intention is to just "have fun and share information".
Kevin, I swapped out a pair of Michigan Dyna jet 3 blade for a pair of Michigan DQX 4 blade wheels. The first thing I noticed was the change of harmonics. The boat ran so much quieter, and smoother at speed. I did not loose any top end, and I gained a little mid range efficiency. These nibral wheels are not cheep. I keep all my wheels tuned to the highest standard, so the most noticeble difference for me between a tuned 3 blade to a tuned 4 blade was the lower harmonic noise level with the 4 blade wheels. I am running 22 X 24 nibral 4 blade DQX tuned by Acutec propeller of North Hampton N. H. The boat is a 1977 30 Hunt Sportsman, set up for off shore fishing, with a pair of 300 Cummins diesels. I run the boat off shore 20 to 60 miles so the lower noise is worth the cost for me.