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Originally Posted by Scotty17509
(Post 4808011)
I recently bought a 1999 25 daytona. It has a 540 with brodix heads, little over 8 to 1 compression with a BDS 8-71. The timing is set at 25, and boost peaks at about 6lbs. It has an older bmax drive, that is 1.30 ratio with their standard length lower. Prop is a 28 Bravo 1 that was slightly worked on, and has a 29 stamped on it.
It pulls about 52 or 5300 rpm and best I have seen with it is 88 on GPS. I see people on here claiming to be running near or over 100 MPH with Less Hp than my setup. (I'm guestimating i should be around 750-800hp) Do I have something setup wrong? |
Originally Posted by fbc25el
(Post 4877387)
I would try a 26 prop. I think you would want to spin the motor a little more rpm.
I'd like to try some different props, maybe a little less pitch to get more rpm. Not sure which to go with. I have access to try a 27p cutting edge. Thinking I may give that a try this weekend. From 29p to 27 may be too much rpm, but I'm interested in what it will do. |
the 26p bravo likes rpm we turn our 540 6500 and more in a 25 foot active thunder yet gets on plane with 6 people in it
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Did you ever figure out your prop to hull dimension or bump timing up?
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