I am looking at a 1999 430xc with twin 700's (500 efi w/ pro chargers) and Bmax drives. Current owner says that top speed is low to mid 70's but thinks it could use bigger props. I am new to the forum - just looking for advise / experience on what props should be on this boat with this setup and how it will perform. Thanks

BMAX-s should be 1.33 ratio and with that HP you should run around 26p or 25 5 blade. I ran 25 P5x on my 2002 460 with 700s and Bmaxs. Boat would run 80 any day.

Stock 500hp bravo1 43 will run 71-72 with 26p bravo 1 prop.

Thanks for the info, If you had to pick between the 26p 4 blade and the 25p 5 blade which would you choose? Why?

On the 43, I would go for a 26 4 blade as it is easier on the drive (more slip) and readily availabe (cheaper). I ran ran 26 bravo 1's on my 99 43SC with 500s and bravos.

Even though Endeavor is a traitor that left his Black Thunder brothers for a Cig, he has some good advice

Sweet boat, it has a lot of potential left in it. IMO you could spend the time and money trying to "dial in" or "set up" the boat rather then more power. There are bottom mods, blueprint the bottom, drive height, props, etc. You should be able to get that boat into the low 80's on a good day and high 70's all day long. But again thats ONCE its dialed in. Do a search on here and Serious Offshore. Lots of good info.

Enjoy!

One more thing. BTs love shortys. I put standards back on one of my 43s and regretted it. Whole different boat. -2 drives help a bunch in the speed and time to plane category

The Cig runs faster.... Lots faster. The wife though wants another 46EC.

IF you really know what your doing you could make a 46EC run faster and better with the same HP!!! Especially with all your "connections" or

Thanks guys, it looks like there is a wealth of information here on the forum, I will certainly need it if I end up with the black thunder. I have been in some "out of the box" Express cruisers and super sports since the kids came along and am ready to go fast again, but still need some room. The BT looks like it might be a good fit. I am not yet sold on this particular boat yet, haven't even seen it but it looks good on paper and if it can sniff 80 that is good. If you know of another good BT for sale that is not posted here please let me know. Thanks

Lol. Gonna be tough to get that big rig to run with the Cig for equal hp. However, I may know a couple peeps that could help speed one up Bring ur Baja to loto this summer. We could have some fun