richanton

About the only thing I haven't changed on this boat is the props, ran good so I figured why mess with it. Well I lost a prop last weekend so now I want to research if I should move to a different prop/size to optimize performance.

HP500 boat (stock) with bravo one drives, am currently running bravo 4 blade 28P. Never paid much attention to top end so I have no idea what my wide open RPM was, and now that I'm missing a prop I can't test it. Just wondering for those of you who have experience with this boat/setup, what props were you running? Would I gain anything by moving to a different brand like hydromotive?

BBB725

I got this from a list from Outerlimits for power and speed for a 37 with bravos and standoff boxes

Twin 502 efi 77mph
Twin HP 500 84mph
Twin Bulldogs 86mph
Twin 600's 95mph

Enough 4 Play

This goes back to the days when I had a 97 37 w Bravos on Stelling boxes. The Merc Bravo 4 blade props worked the best for all around performance. Back at that time I tried the Hydromotive 4 blades and did not like their performance on the boat. Hope that helps.

richanton

That does help, thanks. What size bravo 4-blade were you running and what speeds were you seeing? What didn't you like about the hydromotive props?

Enough 4 Play

The hydros just did not hook up as well for all around performance. I ran the boat w 1.5 ratio HP500s 28 pitch for about 2 hours and then the motors came out and were supercharged. Changed to 1.36 ratio and I believe a 30 pitch then. If memory is correct 84mph w the 28s and 1.5 ratio.

richanton

84 is an impressive # for a stock boat. I don't think mine would do 84, which is why I was thinking I might need better props. But I'm running same as you were, 28P.

Enough 4 Play

Do you have boxes on the boat.

BONDO10

Just look at his Avatar. I see two boxes.

richanton

Ha, yes and yes. Boat has boxes.

Enough 4 Play

Make sure you pull her inspection covers off and keep her u-joints well lubed!!!