krakmeup

Ok, here's the data, and what I did to get them.

Air temp - 74F
Winds - 15-20!! (Not Ideal!)
Small chop
Fuel - Less than 1/8th tank, 87 Octane
Just me as driver. Made passes of ~3 miles long upwind and downwind, taking most stable high reading (found it to actually be INTO the wind in several runs)
2005 Superboat Y2K 30
Single 496 Mag HO
Tabs - 0, all the way up
Drive - trimmed to the moon (actually found my sweet spot - I did enough runs at constant settings that I could 'over trim' to where I started to loose speed)
Props:
Hydromotive 5 blade 26P
Stock Bravo 26 non labbed
Immediately after these runs with the five blade I put my stock Bravo back on and spent the same time, runs, and repeats to get as best a comparison as I could.

Data:
RPM/GPS
5-Blade
3500/47.5
4000/57.5
WOT, 5050/73.8

BravoI
3500/45.2
4000/54.3
WOT, 5100/72.3

My analysis:
- For whatever reason, conditions did NOT allow me the highest top end yesterday (personal best is 74.1 on my Bravo, I only saw 72.3!)
- The Hydro tended to blow out on the hole shot more than my Bravo - strange.....
- No doubt the Hydromotive out performs the Bravo, especially mid range
- If I ran the Hydro more, I would probably see a new high speed, over 75mph but today I can't claim it

There ya go SB fans - sorry I can't bring better numbers, but the direction is the right way and it would prob be a sound investment

bglz42

Almost the same results I had with that prop on my Thoroughbred. Picked up one or two mph in the midrange, but lost a little on the top. This is a stock, nonlabbed Hydro X (bowlift) prop, BTW. Not worth a thousand bucks on my boat IMHO. Maybe labbed would be better? Or a Bravo Maximus, (bigger blades)?

SUPERBASH

KRAKS #'s say he picked up more speed at all rpm....1.5mph top end.
-I would run the prop that was better all around that I liked better.

Pat McPherson

Hey Krack,
In my opinion your 5 blade numbers are far better than the 4 blade numbers.
+3mph midrange and +1.5mph on top is great!
The slip #s are 2.5 to 4% better with the 5 blade.
Still 13.6% slip on top with the 4 blade is not that bad for a V bottom.
I think those of us that are running 26p Bravos on the 24ft are at about 12% slip.
Hopefully professor Jcap will have something to say...

Dave M

Hey Patrick,

Have you ever tried a Hydromotive on your boat? I tried a Hydro 4 blade the first year I had my boat. I don't think I had enough seat time to gather any conclusions.

Dave

FX10

All around you saw MPH increases over the Bravo. NOW..............When the conditions are Ideal........................instead if 74.1, you'll see 75.6 or better.

SUPERSTITIOUS

I think I'll be looking ino one of them thar Hydro's....pass the popcorn please. Finally I get to let my nails grow back...Keith thank you for the great info!

Superbabi

Keith, Thanks For Update With 5 Blade. I Know Now Thats The Way To Go !!!! Thanks,,,,,,,,gary

bglz42

And remember, that was a box-stock P5X with few dings on it. Imagine what a Throttle-Up labbed P5X would do!

One other comment about the Superboat 30Y2K...

I've spent quite a bit of time behind the wheel of Krak's boat now, and I've just gotta say it:
That boat is the chit!
JC and Rick should be commended for producing what I think is the most comfortable, best riding, best bang for the buck 30 footer on the market! Simple, (with a single), maintainable, easy to handle aroud the dock (contrary to popular belief, you don't believe it? Watch Krak park that thing...) and gorgeous!

Not to mention, I think it's the out of the box fastest stock boat with an HO. Extreme is predicting 80's with theirs, but I don't think it's happened yet. 74.1 is simply smoking with a stock motor. Most 30 footers are struggling to break out of the 60's.

Jim

krakmeup

Well thanks Jim!!! I couldn't have said it better - I am all smiles every time I come off that boat - hope it doesn't sound like a broken record, but it has far exceeded my expectations!!

And, JC does have it dialed in! Jim (Bglz42) came over with his prop, an awesome piece of work from Velocity - he brought me his Hall's Velocity Stage I prop (Bravo based 4-blade and designed for the Velocity Thoroughbred boats) , a labbed 30p gorgeous prop with sharp edges and we slipped her on - now, the numbers below are with two people and FULL fuel (I had just filled completely up to check mileage one more time), so the high ends are lower - weight is definitely a factor on these boats (yes Gary, I'm re-thinking all the stereo gear! LOL!!!!)! We tried his prop and then came back and did the same runs again with the stock prop - JC has it dialed in right and I sure can't go wrong with the Bravo I!!

Air Temp 77F
Winds 15
FULL fuel, two people

Hall Velocity Stage I 4-Blade
RPM/GPS
3500/41.3
4000/50.5
WOT, 4900/ 70.7

Stock Bravo I 26p non labbed
3500/40.9
4000/52.4
WOT, 5100/70.4

Thanks again to both Jim (Bglz42) and Bill (CaptWK) for letting me try their props - you guys are great, and now I'm off to ebay to look for a second prop - anybody got a stock Bravo I 26p they want to lose??

Keith