Thread: Bravo 1 XS ?s

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  1. #1
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    Bravo 1 XS ?s

    Looking for 4 blade prop as primary/secondary Prop.

    Tried a 25 pitch B1XS and was on the limiter ~6100 (58 degrees OA and water temp at 0 elevation) with 2011 250 Pro XS, Hyd plate, Basscat Puma FTD, Talons, 4 Agms, 52 Fortrex, and tx load, 26 gal fuel, live wells. 71 mph and rpm increasing. Need to measure ptp but Guessing 2.5 - 2.0. Hole shot ~1.5-2 sec with no plugs or large hole plugs around shaft. On launch 4300 rpm slight bow rise to 4700 rpm and as it drops to 4300 rpm. No blow out on launch. Midrange strong acceleration and quickly to 65 mph. Able to run easy 20 mph on pad.. Slight torque on wheel at WOT. Good lift, stern and bow. Water pressure 25-30 psi

    1. Do Bravos run / make higher water pressure ? Seems much higher Psi even with running higher.
    2. Going to try 26 B1XS and try to find mid 70s with proper JP height and RPMs while not losing any holeshot.
    How high ptp is too high?
    3. Does this sound Like normal numbers?

    ( have 25 tempest plus 5770 WOT 71 mph with ~ ptp 2.75 - 3 good lift and decent but slowest holeshot. Also worked 25 fury 3 5650 at 70 mph ~ 3.25 ptp ok lift good acceleration)

    thanks for input
    Last edited by MDBASSNPRO; 11-18-2020 at 02:55 AM.

  2. Moderator 21XDC's Avatar
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    #2
    A 25P Bravo1 is actually a 24P prop with taller cup height. A 26 is 26P with less cup and bow lift. You wont know until you try one on your particular boat.

    Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html

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    #3
    Personally, I would be disappointed if that rig didn't hit 75. RPMs seem lower than they should be.

  4. Member
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    #4
    +1. I'm thinking you will need a 27" Bravo.

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    #5
    Quote Originally Posted by MDBASSNPRO View Post
    Looking for 4 blade prop as primary/secondary Prop.

    Tried a 25 pitch B1XS and was on the limiter ~6100 (58 degrees OA and water temp at 0 elevation) with 2011 250 Pro XS, Hyd plate, Basscat Puma FTD, Talons, 4 Agms, 52 Fortrex, and tx load, 26 gal fuel, live wells. 71 mph and rpm increasing. Need to measure ptp but Guessing 2.5 - 2.0. Hole shot ~1.5-2 sec with no plugs or large hole plugs around shaft. On launch 4300 rpm slight bow rise to 4700 rpm and as it drops to 4300 rpm. No blow out on launch. Midrange strong acceleration and quickly to 65 mph. Able to run easy 20 mph on pad.. Slight torque on wheel at WOT. Good lift, stern and bow. Water pressure 25-30 psi

    1. Do Bravos run / make higher water pressure ? Seems much higher Psi even with running higher.
    2. Going to try 26 B1XS and try to find mid 70s with proper JP height and RPMs while not losing any holeshot.
    How high ptp is too high?
    3. Does this sound Like normal numbers?

    ( have 25 tempest plus 5770 WOT 71 mph with ~ ptp 2.75 - 3 good lift and decent but slowest holeshot. Also worked 25 fury 3 5650 at 70 mph ~ 3.25 ptp ok lift good acceleration)

    thanks for input
    u need a 27 bravo 1 xs i would target 3800-4000rpm on initial launch till breakover probably gonna need 4 holes solid plugs 2 open 2 small hole on pvs im assuming this is a 2 stroke but will work on 4 stroke bravos like to be ran high

  6. Member
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    #6
    21, Angle, John, Sbl - thank you for your feedback. 250Pro XS 2 stroke. (Numbers above did not include coangler and tackle)

    The reason why we started with 25 was to to take 2 clicks up in RPMs based on the Tempest / Furywhich would appear to need a 24 to get the RPMs up but not sure MPH would result. Both the F25 and TP25 would appear to be hooking up well based on calculator as well as feel on the water. I am no expert but I am sure a better driver can get a little more Mph out of the 3 blades. That said any more trim on the TP looses water pressure <15 with torque. As far as the Fury, I think it needs more work to carry the bow. The B1XS is much more stable at speed.

    21XDC had me wondering about the cup knowing that a 26 will be less than 25 so may lose some holeshot but think it will be negligible. I read where the hull lift design of BCB may be a better fit with even Pitch props. ThAt is why I thought 26 was better (with 28 being too out there for the setup). That said the cup on the 27 and seeing a couple other threads saying they could not tell the difference between 26 and 27 and went with 27 has me thinking. I don’t know how they were set up and didn’t want the summer time heat on the river bogging down holeshot due to reduced HP.

    i can call an audible before the 26 replacement but wondered if you would error to the 26 not knowing how the 85-95 degree temps will be with the setup. Also, I will be interested to see where the B1XS settles in on PTP

    Thoughts?

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    #7
    If you go with the 26" bravo and need to lose some rpm's you can always have it cupped up to 27 but it sounds like you need to load that boat up and try what you have again because adding a partner and their tackle will draw down your rpm's.

  8. Member
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    #8
    Mdtritn - that’s what I decided too. Thanks.
    Will post results when I get it back.

  9. Member
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    #9
    Id do a 26.5, little extra lift over a 26 but not too hard to turn.
    2007 Sterling 22xs-Yamaha 250-Dual 10 foot blades-Ipilot-Bobs Jack plate-HDS 8 (SOLD)
    2016 Sterling 220XS: (SOLD)
    2008 SCB Topcat 250 XS (SOLD)
    Current:
    2014 SCB Stingray Sport Merc 300XS
    2018 ES Custom Revolution 25 Merc 400R

  10. Member
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    #10
    Update-
    I was able to get to the river today to run the 26 pitch
    50 degrees and 5-10mph s wind.
    46:gallons fuel, 4 AGM, heavy load, talons, more tackle from storage

    live-wells full
    Hole shot 3700-4300-4500 - 4300 at break over, no blow Out, ~ 3 sec to launch, mod bow pop
    acceleration- incredible pulls hard up to 69 mph then 71-72 mph at 5800rpm, smooth ride

    empty live wells
    Hole shot 3700-4100-4300 - 4100 at break over, no blow Out, under 3 sec to launch, mod bow pop
    acceleration- incredible pulls hard up to 70 mph then 73mph at 5880rpms using jp*

    water pressure never below 20psi on plane, Wheel torque moderate

    Concerns: what do you think about the 5800-5900 RPMs in cool weather with summer humidity?
    1. the stern lift is amazing and certainly helps get the rear up during hole shot. That said, to get bow lift And RPMs trim needs to be more than used to in a Basscat. *Combined the rear can feel loose.
    2. During summer loaded the RPMs will likely be in the 5770 range which is where I am coming from with the 3 blades.(not as loaded)

    Solution:
    1. Running the normal 20- 26 gallons of fuel and normal tackle should keep RPMs up or a little higher About right in summer
    2. Don’t run too high with trimmed with no live wells water, over 70 on the river conditions aren’t common (hmmm)
    3. Add cup after summer conditions known should bump the RPMs

    Since I don’t think there is a way to have less stern lift with bravo (other than adding water in the wells)
    Does Fury 4 have more or less stern lift? I hear they can be a little faster which is always great but would rather make sure keep the rear hooked up.

    Am guessing 24 Fury 4 ? If I can go that route. Time to move on.

  11. Member
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    #11
    You can have the barrel cut a little more to increase bow lift/decrease stern lift. Ive run them before and was definitely noticeable difference
    2007 Sterling 22xs-Yamaha 250-Dual 10 foot blades-Ipilot-Bobs Jack plate-HDS 8 (SOLD)
    2016 Sterling 220XS: (SOLD)
    2008 SCB Topcat 250 XS (SOLD)
    Current:
    2014 SCB Stingray Sport Merc 300XS
    2018 ES Custom Revolution 25 Merc 400R

  12. Member
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    #12
    Linesider - good to know.

  13. Member
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    #13
    Quote Originally Posted by MDBASSNPRO View Post
    Linesider - good to know.
    Was that a Brave XS, or another varient. With the XS, you can't cut much more off or it can start an oscillation cycle on holeshot of losing bite, getting bite, losing bite, etc. Hard to explain but it can cause surging.
    More than half an inch off a stock Bravo is about all they can normally handle without causing this surging. If you do go this route, and have issues. I know Croxton can weld flare back on.

  14. Member
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    #14
    You can cut more barrel off of an fs or xs, ive personally run it with no issue
    2007 Sterling 22xs-Yamaha 250-Dual 10 foot blades-Ipilot-Bobs Jack plate-HDS 8 (SOLD)
    2016 Sterling 220XS: (SOLD)
    2008 SCB Topcat 250 XS (SOLD)
    Current:
    2014 SCB Stingray Sport Merc 300XS
    2018 ES Custom Revolution 25 Merc 400R

  15. Member Louie's Avatar
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    #15
    In reply to your question about the Fury 4 on the puma hull. I had a 2017 with duel poles, 3 group 27s, and one 31, a foretrex 112 and a good bit of tackle but not slammed. The boat ran well in the summer and fall with a 25 fury 4, I lowered my manual jack plate and with just me half tanks of fuel, and half full livewell I could get just a bit over 75 at 6000 rpm or close to it. I think at 26 fury would of been the ticket to get back up to that 76-77 mph mark but I hit a log last feb. I now have a 2021 Eyra and have been playing with a bravo 26 xs on the new 4s and its done well I've seen 75.2 @5990 earlier this fall with it. I know its a different hull and motor. But if you like the attributes of that bravo xs on your boat and you are close on RPMs you might want to give Ronnie Gilbert a call and send him your prop as he can probably get ya some speed and rpms out of it hes the bass cat go to guy. Ive used him 4 times now, and he even wanted to work a prop I got second hand for free... Of course I forced some money on him and he tweaked it to my hull (Was a worked 25/3 fury on that puma actually and ran upper 77 mph range)
    "the head, the tail, the whole damn thing"