0mc prop fits mercruiser drive??
hello guys . i have a 1989 searay 220 da 5.7L 260 horse power, dry weight about 4000 lbs everyone said i should be running a 17 pitch prop but right now i have to go all the way down to a ss 15 pitch prop to get my wide out rpm hole shot is great but top end sucks.<br /><br />engine is running strong but i think the 15 prop is too low even tho it give me the right rpm. can someone give me some heads up on this. i had install a pair of exhaust flapper. in the y pipe it is that butterfly shape flapper, but the old ones i took out was totally diffrent, it was the one with the long pin holding the flap, could the new ones killing my power not letting out all the exhaust???? <br /><br /><br />thanks for any info
hello guys . i have a 1989 searay 220 da 5.7L 260 horse power, dry weight about 4000 lbs everyone said i should be running a 17 pitch prop but right now i have to go all the way down to a ss 15 pitch prop to get my wide out rpm hole shot is great but top end sucks.<br /><br />engine is running strong but i think the 15 prop is too low even tho it give me the right rpm. can someone give me some heads up on this. i had install a pair of exhaust flapper. in the y pipe it is that butterfly shape flapper, but the old ones i took out was totally diffrent, it was the one with the long pin holding the flap, could the new ones killing my power not letting out all the exhaust???? <br /><br /><br />thanks for any info
