24 Speed Update
 

We took her out for the first time this year yesterday. The lake was calm and pretty smooth. I still haven't changed props, so i'm still running on the labbed 25P Mirage plus. Once I get the 27P on, I think we'll see the real numbers. We hit a best of just a hair under 76. Speedo pic included. More updates to come!

Very nice. How much HP do you have?

501hp @ 5200 rpm

What are you turning that 25? I'm still running a 23 on my Pantera and think a 25 would be the ticket. (I'm turning the 23 upwards of 5700-5800. ;))

It's turning close to 5400 rpm right now. It is in perfect shape with no nicks or anything. It will be for sale once I test and like my 27P if you're interested. It is a very nice prop.

Zeimer, remember peak HP is in the 5800rpm range.
That's where you should be topping out at.
Unless that's up against the limiters.
You could always try a 25, or even have that labbed.
Chasing those last few mph can drive a looney.:drool:

Jayhawk, what kind of torque and where in the rpm range?
Those are some nice #s.

Peak torque is 535.7 @ 4629 rpm, and it's at or above 500 lb*ft from 3627 rpm to 5253 rpm. It pulls like a beast!

I'm really hoping to break 80 with the new prop. I haven't put it on yet cause it is a pain in the ass to do on the lift without help, and ,y wife isn't strong enough to help out. My engine builder is making some fine tune adjustments to the computer program, and when he brings that down we will swap the prop and get the new number.

I'd try a Bravo 1. A 24 Super should run 80+ any day of the week with 500HP. I can hit 78+ on most days with 425HP. I'm turning a 28P @5000 rpms.

I don't know if it's true or not, but some people say that you run faster in salt than in fresh. Are you running in salt or fresh Dave?

My boat has always responded better to a three blade prop. Any of the four blade props I've tried made the boat feel sluggish and handle poorly. I don't know if it is the X dimension or what makes that happen, but the 3 blade always works better. That being said, if I can put my hands on a Bravo 1 28, I'd certainly like to test it. I can't find anyone who has one though.

Another problem I am having with speed is that at WOT and trimmed out, the bow feels planted, like it isn't lifting out of the water. Whether that's the case or not, I can't say for sure. That's just how it feels. If I'm not getting enough bow lift, that would probably scrub a little speed as well.