1998 26 sonic with 502efi with (rev marine exhaust , msd ignit, adj. fuel reg (45psi) k+n air cleaner , ecu reprog. by precision marine . boat was running wot 4900 rpm with 24p bravo 1 lab finished 1/2 tank fuel , took off corsa muffler tips and boat has come alive running 5200-5300rpm wot with 1/2 tank fuel !! what prop should I try now ?

for speed a 25 mirage or to handle alittle better a 26 bravo.I dont know sonics so maybe a hydromotive.

Sounds like a bravo 26 would be too much of a jump,maybe some more cup in your current prop

ttt

Who lab finished your 24 Bravo's.

The best way to determine what prop to go with is to try a stock set of props. You never know what has been done to the props you have now. If your props are a "standard" lab finish then stock 24 Bravo 1's would run about 4900, which is a good rpm for your motors.

Julie, Talked to Dean from SA yesterday, said the prop you repaired did fantastic. He was also amazed at how low the price you charged him to repair was. Keep up the good work.

julie the stock 24p prop was labbed by merc , I sent it out before i had the programming done on the ecu and took the corsa mufflers off. like I said before these 2 mods were done wot was 4900 rpm now 5200-5300 wot rpm ?
should I try a stock 24p or a labbed 26p or any other suggestions?

Labbed 24P B1 and Labbed 26P B1 worked very similar on my old boat. I stuck with the 24, labbed by some place in CA.

tony,i just got a one inch drive spacer i'm going to try,prop slip is around 15%,something you didn't mention? ahhh speed,mine up over 80 mph the boat feels like the prop is the only thing in the water.right now i'm running a 28 pitch labbed by merc also @ 5800 rpm's,when i put my 27 pitch labbed by dah the boat run's alot faster and quicker to speed but i'm turning 6000 rpm's,i have a 29 p hydro 4-blade coming to try next.there alot of prop's out there and there all different.someone has a 30 p,but he won't sell it i won't mention his name.

well i put the 1" drive spacer in and the only thing it changed is that it's very hard to get on plane with either the 4-blade or 3-blade,speeds the same.bottom cavitation plate still above the drain plug hole,point of nose cone about five inches below the hull.
any thoughts??????