Lab /labbed prop or Stock? Bravo
#1
Lab /labbed prop or Stock? Bravo
I'm running a 30" bravo now, non-labbed, have not had the chance to borrow someones labbed prop (no body in my area has one)
Gear ratio 1.5, RPM 5,100, top speed 86 MPH, slip 11%
With the 28 non-labbed, 5,500 RPM (as per tach, which is above the redline for a 500 HP) 84 MPH slip 13%
Midrange is MUCH faster with the 30.
What difference would I notice with a labbed 30"?
Gear ratio 1.5, RPM 5,100, top speed 86 MPH, slip 11%
With the 28 non-labbed, 5,500 RPM (as per tach, which is above the redline for a 500 HP) 84 MPH slip 13%
Midrange is MUCH faster with the 30.
What difference would I notice with a labbed 30"?
#4
Any downside to the Labbed prop? (besides cost)
What is done to the prop to lab it?
(my understanding, thinner blades and better balanced)
Between the 28 & the 30, the one big difference was top end power, the 28 gets to the top quick, the 30...takes a while. Not a big deal, but thought I would mention that.
This is the biggest heaviest boat I've ever owned, so I'm used to, instant accelaration, delay feels odd to me. But have been a passenger in boats up to 42' with twin 1500's, and even with that power it takes a while to get up to speed
What is done to the prop to lab it?
(my understanding, thinner blades and better balanced)
Between the 28 & the 30, the one big difference was top end power, the 28 gets to the top quick, the 30...takes a while. Not a big deal, but thought I would mention that.
This is the biggest heaviest boat I've ever owned, so I'm used to, instant accelaration, delay feels odd to me. But have been a passenger in boats up to 42' with twin 1500's, and even with that power it takes a while to get up to speed
#5
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Labbed props are not as durable. I have thrown blades on two of them in the past three seasons. Of course I am surfacing them but thinning the blades certainly doesnt make them stronger. Any debris can damage them and lead to a crack.
Your midrange could suffer with a lab job as well.
Your midrange could suffer with a lab job as well.
#6
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#7
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Join Date: Apr 2009
Location: Denmark and hopefully some place nice
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A true lab job is a custom prop suited for what you want and need. Find a good shop like Bblades or DAH ect. and work with them. Thick or thin blades, mid or top end, lift/no lift ect. ect. ect.