Took my 27 fever to the lake today with new prop
11-11-2012, 03:26 PM
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Took my 27 fever to the lake today with new prop
Took my fountain to the lake today to try my new bravo 1 24pitch prop and I'm running 60 mph @ about 4850-4900 rpm with a 502 mpi black motor
Had 3 people in the boat 465lbs between the three of us and 25 gallons of fuel @ 6.1lbs a gallon =152.5 lbs of fuel and a grand Total of =617.5lbs
The same boat people are getting 70 I'm 10mph away
Seems like it would have more but it does have bottom paint on it so it has some drag...any suggestions?
And I was told the prop was labbed...I used my fathers bravo 24p and my prop seems to get on plane better but I thought I would be a little faster than 60
Had 3 people in the boat 465lbs between the three of us and 25 gallons of fuel @ 6.1lbs a gallon =152.5 lbs of fuel and a grand Total of =617.5lbs
The same boat people are getting 70 I'm 10mph away
Seems like it would have more but it does have bottom paint on it so it has some drag...any suggestions?
And I was told the prop was labbed...I used my fathers bravo 24p and my prop seems to get on plane better but I thought I would be a little faster than 60
11-11-2012, 08:06 PM
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11-12-2012, 08:09 AM
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It's the paint.. My friends straight bottm 27 with a stock 502 and stainless marine exhaust with about 4 years of paint only did 55/56 . I Striped the paint off and buffed it back to a shine and it did 68 all the time gps speeds. It's the paint. I also did a 353 fastech with 500 efi's did 68/70 stripped the paint and does 80 now...http://www.offshoreonly.com/forums/f...t-removal.html that is a link to the thread on it
Last edited by excalibur82; 11-12-2012 at 08:14 AM.
11-12-2012, 10:22 AM
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It's the paint.. My friends straight bottm 27 with a stock 502 and stainless marine exhaust with about 4 years of paint only did 55/56 . I Striped the paint off and buffed it back to a shine and it did 68 all the time gps speeds. It's the paint. I also did a 353 fastech with 500 efi's did 68/70 stripped the paint and does 80 now...http://www.offshoreonly.com/forums/f...t-removal.html that is a link to the thread on it
Last edited by tdpb2008; 11-12-2012 at 11:00 AM.
11-12-2012, 01:00 PM
#8
I would also prefer a shiny bottom over a painted one, although I know there are some ultra shin bottom paints that does not create drag.
I would go for a non labbed prop. Merc often cut off some of the blade are on the lapped props. With only one engine/propeller, you will need as much bow lift as possible on a V-bottom (to reduce the trim angle of the out drive). Try instead cupping the propeller more. Most prop shops can "lab finish" a prop. It actually means that they measure all blades and make them similar to each other and also balance it and thin out the blades etc. A prop that is been modified would usually give better performance, but make sure to do the right tinghs to it. I would guess a big ear four blade prop would work well on a 27 Fever.
Good luck
I would go for a non labbed prop. Merc often cut off some of the blade are on the lapped props. With only one engine/propeller, you will need as much bow lift as possible on a V-bottom (to reduce the trim angle of the out drive). Try instead cupping the propeller more. Most prop shops can "lab finish" a prop. It actually means that they measure all blades and make them similar to each other and also balance it and thin out the blades etc. A prop that is been modified would usually give better performance, but make sure to do the right tinghs to it. I would guess a big ear four blade prop would work well on a 27 Fever.
Good luck
