cant stop the power hop at 0ver 90mph in a 29 warlock?????
07-25-2005 | 09:07 PM
#11
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From: long island
Re: cant stop the power hop at 0ver 90mph in a 29 warlock?????
Originally Posted by throttleup
What were the results with the other props you have tried?
Who lab finished the 32 Bravo you have now?
What is the distance of the center of the propshaft to the bottom of the hull?
How does the boat get on plane?
Does you 32 Bravo 1 still have the diffuser ring?
Is the motor NA or supercharged? Do you have a dyno run on the motor?
What power did the boat have prior to the current engine, what about the previous drive. Did you raise the drive? What characteristics did the boat have previously with the old power?
You should not need to reduce the diameter of the prop. With the power you have bow lift should not be a problem.
What effect does drive trim have on the hopping? How much trim do you have to put into the drive to obtain max speed?
Matt
Who lab finished the 32 Bravo you have now?
What is the distance of the center of the propshaft to the bottom of the hull?
How does the boat get on plane?
Does you 32 Bravo 1 still have the diffuser ring?
Is the motor NA or supercharged? Do you have a dyno run on the motor?
What power did the boat have prior to the current engine, what about the previous drive. Did you raise the drive? What characteristics did the boat have previously with the old power?
You should not need to reduce the diameter of the prop. With the power you have bow lift should not be a problem.
What effect does drive trim have on the hopping? How much trim do you have to put into the drive to obtain max speed?
Matt
mercury 32 lab.
3 3/4 below the bottom.
goes on plane pretty good,a little bit tougher since the 1 " shortie.
the 32 still has the diffuser ring
yes,the motor is blower motor, 840 hp/729ft.lb trq.@6050 rpm .
the boat had a hp 500 with a stock bravo and did not hop,it only went 82mph.the hop does not start untill around 90 mph.
my drive is all the way in at 0,it runs the fastest at 2,any more the motor rpms and the boat starts to slow down...prop slip,the boat does not like trim even on a cruise it slows down with more trim then 2,,,when you look at the drive 2 is almost nothing
07-26-2005 | 07:56 PM
#12
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Joined: Jun 2003
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From: Princeton, Wisconsin
Re: cant stop the power hop at 0ver 90mph in a 29 warlock?????
I'm not sure all that was necessary.
The 6 blade gives more stern lift. Can't carry the bow.
3.75" isn't that low with your hull.
Removing the diffuser may possibly decrease the porpoise "very" slightly.
The fact that you can't trim the drive out is even more evidence the prop can't carry the bow. The boat shouldn't react as much to trim at cruise.
Not to sound repetitive but, go back and read all of the posts on this thread again. Try the spacer, we have worked with these hulls before.
Best of luck.
The 6 blade gives more stern lift. Can't carry the bow.
3.75" isn't that low with your hull.
Removing the diffuser may possibly decrease the porpoise "very" slightly.
The fact that you can't trim the drive out is even more evidence the prop can't carry the bow. The boat shouldn't react as much to trim at cruise.
Not to sound repetitive but, go back and read all of the posts on this thread again. Try the spacer, we have worked with these hulls before.
Best of luck.
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
