25 daytona Max speed

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08-22-2023, 10:09 AM

#11

fbc25el

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Quote:

Originally Posted by Scotty17509

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?

I would try a 26 prop. I think you would want to spin the motor a little more rpm.

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Scotty17509 (08-24-2023)

08-24-2023, 02:50 AM

#12

Scotty17509

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Quote:

Originally Posted by fbc25el

I would try a 26 prop. I think you would want to spin the motor a little more rpm.

thanks for the input! I don't have all the engine specs, but i do know it has a hydraulic roller lifters/cam. It has a chip in the msd limited at 5800. I'd think I few hundred more rpm would still be OK and probably more into the power curve.

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.