Paging Prop Experts . . .
 

Now that I'm finally running what I consider the best prop for my boat tested to date, I have a few questions.

I'm running a 28P Bravo 1 on my 24' Pantera with 650HP. Total weight approximately 4600#. I will get better performance numbers as I just received my GPS, but currently I am running about 85 MPH (Speedo) @ 4800 RPM.

1. Does this speed/RPM seem right?

2. What can I do to get my RPM's up without sacrificing low/mid range performance?

3. I'm be interested in Lab finishing prices, please quote finishing my prop and also a new Bravo 1 finished from you shipped to Hillside, IL 60162. (See Jeff, I'm not cheap or poor!!)

Thanks,

Kirk

Send all this info to Darin at [email protected]
He's your best bet on this subject

What gearing in the drive?????

With a 1.5 drive a 28 @ 4800 going 85mph has a 0% slip ratio. With 10% slip which is fairly good for V's, its 77mph.

You would pick up 400 or so rpms by dropping to a 26 Bravo. Labbing the 28 would probably give you 200-300 rpms.

Kirk,You have mail/
Darin/ Houston Marine Propeller

I must be real efficient with 0% slip huh Griff!!!??

Like I said, I'll get true GPS reading this week to see what I'm really doing.




Darin,

I'll check my email, thanks, I knew you'd have the answer and the right prop!!! I'll get back to you tomorrow!!

Kirk

your mail
 

BOX is full Kirk,I will try later or my phone is on 24 /7
oh!That doesnt mean I"LL ANSWER:D No, really 24/7

IT'S THE TIME OF THE YEAR!:cool: Darin

Cleared the box . . . still says full. Something is wrong!

Can you try again??

Thanks,

Kirk

My GPS Lies
 

O.K. I have to tell the sad truth. My GPS Lies!!!!!

I am actually running 78 MPH at 4650 RPM with the Bravo 1 28P. I am very disappointed. I called Darrin at Houston Prop and he recommends a 26 increased to a 27 with some cuppping and lab finishing. I'm going to go with his recommendation, but need to purchase my drive first.

What numbers should I anticipate with a 27P at 5000 - 5100 RPM?

sell the gps that is what i should do..
sell gps = positive cash flow
every time i use my gps = cubik negative cashflow-

Dumbest thing I've done buying that damn GPS. My speedo was wonderful until that GPS showed up!!!!

i know wha t u mean it will ruin every boaters day every time..
hihi
funny but truth sure hurts

Just a thought, if you have a 650 hp engine in your boat it probably makes its peak hp at a rpm higher than 5000. Maybe you should try to prop to where your max hp is.

However, my experience with my boats is they run faster when they are slightly over propped. Meaning not being able to reach the rev limit or point of max hp.

Good luck and post your results.

Ron

ps: I hated my GPS at first too.