the hydros are 5 blades

2000 38' Lightning with HP500 Carb's, slightly hotter cams, headers, stock Bravo I's (not XR's), 26 hydros (not labbed), spinning in, on the limiters. Run 81 - 82 GPS with two people and 1/2 tank of fuel. I would have expected you to be closer to 95ish with 700HP. Thinking of rebuilding my engines to 700 - 750 HP and adding XR's, so I am very interested in your results. Good luck; let us know how it turns out.

ping Monsta, he built a very fast side by side 38 a couple years ago.

sat was fun till i lost my starbord rotor.ran 32 p5 at 5100 at 84 not good. ran today with 29 p5x at 5700 at 90.5 better but still to much slip and needed a lot of trim around 6 or 7. i need a lot more help
any one set this up before.

might try the p5x version of prop, also which way are you turning your props in or out?

i ran props out and i ran 29 p5x at 90.5

props in not out my bad

38 Tally, I sent you a response in the prop section. You will be much better off with 4 blade and you will probably want to space down 1/2" to 1". Your small steps cannot be compared to the 2000 and newer boats with the bigger steps and higher x dimensions. The 5 blades always work better with high x dimensions but you are leaving speed on the table:( (Space down 1/2" to 1" 4 blade 29 Hydromotive or Bravo 1)

try some 4 blade bravos, if it will get on plane ok then your drives are not to high, if it wont get on plane you will have to stay with 5 blades are add a spacer to lower your drive. also call throttle up and try some of there loaner props, see if they have any of there new 5 blades they make in house, that will give you what you are looking for

Talk to Brett at Bblades he has done 100s of these. 920-295-4435.