Cig twin step w/575s best props?
 

Looking at a cig top gun with 575s and the Arizona blower kit- motors were re built by Ron potter- it's running 30 pitch bravo 1s, we took the boat up to 84 and had some throttle left, and trim left, tabs were also at 3, never ran it wide open- does 30s seem to be the right application for 575s? These motors were dynod at 700 hp?

My TG had 32 stock bravos, equipped with the whipple kits, boat runs 90-92 on the limiter, had Brett at BBlades cut down and lab a set of Maximus props - great cruise, top end dropped slightly but would rather have the good cruise speed. If you are looking for top end labbed Bravos are probably what you would want, contact Brett.

And to answer your original question, 30s are too small.

Thank u for the help! We're gonna run it again full out and check the numbers! Wondering if these props have been labbed and not re stamped on the pitch no.?? I'll find out- thanks again!

I agree 30p is too small. I am running 700hp 575sci rollers and I can spin my 4 blade 32s to 5850 and more. If you are running short lowers you should consider 5 or 6 blades for all around performance and planning.

32s are a great base point to start

575SCI's don't like to be under propped as the rev limiter cuts fuel... You don't want that on a blower motor.

Yeah 4Bus but your running that set up on a Fountain so those 32's are really 29's:cartman: