Dropping in new engines with about 520hp..trs drives with speed cones..and the hull weight is 9400lbs..any suggestions???

I turned 26P labbed bravo 1's on bravo drives with 500hp Merc Blue motors to 5100 rpm.

Hydromotive 24P quad IV may be a good prop.

I have a couple of labbed 28 bravos.

i myself will be trying a revolution 4. im no prop guru but b blades suggested i try them. there designed for an agressave x demention, like trs. another choise i might try is a power tech prop. biggus says they work the best for his old top gun.

thanks for the input guys I appreciate it...still kinda cool up here in Chi-town so I've got some time to think it over before we start dialing everything in for the summer

I ran labbed 26 bravo 1s on my 93 with similar power

What is the weight differencew between the old power/drives and the new power/drives?

Julie

Hydramotive 24/25 4 blades may not be the best on top but you will get good cruise. espically after fuel, coolers, and people.

Running the numbers using a total weight of 9400 lbs. suggests the 28 Lab B1's that Gary has will put you at 83 mph @ 5400 rpm. That's with a 1.5:1 gear ratio.