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Questions on my Xpress H22 setup

Posted on 9/8/16 at 8:34 am
Posted by TheLSUriot
Clear Lake, TX
Member since Oct 2007
1505 posts
Posted on 9/8/16 at 8:34 am
Learn me what I need to know, oh wise OB.

I picked up a 2013 H22 over the weekend. F150LA with only 60 hrs and a OFX3R21PCL200 Powertech prop on it. From that code, I gather it’s a 21 pitch 3 blade but can’t find it listed on their website. 6” hydro-jacker with the mounting plates for a Talon setting the engine almost 8” back off the transom. I got her up to 51-52 mph range with the current prop and set up at ~6100 rpms (light load, full gas tank, 2 people). Could have got the motor a bit higher or trimmed her a bit more but didn’t want to drop the water pressure below 10 psi. Plus, she was already running at or above 6k rpms and at the threshold of throwing a rooster tail.

I want to get the best all around performance but keep it safe. I’m happy running 50 mph, especially with only a 150 on that big of a boat, but not if I am pushing the rpm’s too high. It’s my first boat with a hydraulic jack plate or hyperlift hull designed to run on a pad, so I have questions. That prop??? What is a safe water pressure range to stick with for that Yamaha? Would I know if the motor was hitting a rev limiter? Should it be throwing a tail and if it gets to that point what is the better move; bringing the motor down or trim in? Should I be looking for a sweet spot where the steering input is loose at WOT? I am open to any good advice and ready to learn more from those experienced with Xpress rigs….Seapickle…

It also came with a Helix 9si that I have no idea how to use.
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/8/16 at 9:06 am to
ok...where to start.. throw away that powertec. the xpress likes the trophy, pro series and tempest props the best. For a trophy you will need a cavitation ring as its a small barrel prop but runs very well on the xpress.

OFX3R21PCL200 : OFX is the style powertec. 3 is the blade and 21 is the pitch

you want your prop to pad to be 4"-3.25" with those props. - get your motor set at 4" below pad. mark this on the JP - do same for 3.25". Stay between these two marks when running. drop JP to 4" and get on plane bump up and slowly bump trim until you lose speed or lift. bump down one and that is your wide open motor height and trim level. at this time you should be at max speed, lift and 5800-6000 rpms.

you want 6000 rpms with your average load, not a light load that you never realistically use. fill the tank, put 2-3 guys in there with gear and see how it runs. All props of the same pitch will give different rpms due to diameter, blade design and blade stiffness differences. you should be turning a 19 pitch. maybe 21 depending on the prop but thats a lot of boat for the 150 so a 19 seems best

props lift lots of rake run good on the xpress to give it lots of bow lift to get on pad. the 4 blades lift the stern in addition to the bow so they run a little "flat" when compared to the 4 blade. I ran pro series (3 blade) and trophy (4 blade) on my boat.

if you want more speed, get a bigger plate (10-12" of set back) xpress likes as much set back as you can give it.

Water pressure - say about 12psi. you run at the motor heights i said you wont have a psi issue.

All the answers to yours questions can be found here: LINK

This post was edited on 9/8/16 at 9:17 am
Posted by TheLSUriot
Clear Lake, TX
Member since Oct 2007
1505 posts
Posted on 9/8/16 at 9:25 am to
I know I threw a lot out there. Thanks for the input to get me started. Is 52 mph respectable for a 150 on a H22?

The set back will remain as-is but that prop was a big question mark. Seemed like something thrown on at the factory/dealership. Would probably avoid the trophy so as to not deal with a cavitation ring.
The wife needs a smooth ride, no porpoising, at max ~45 mph; while I want to go fast. Which of those other 2 props, in your opinion, has the best mid-range (~4k rpms) performance for stable cruising without sacrificing on the top end? Or is that too much to ask for?
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/8/16 at 9:33 am to
quote:

Is 52 mph respectable for a 150 on a H22?

yes my buddy's h22 with w150 and no JP did 50-51 i think. 6" isnt much on an xpress but does help.

quote:

Seemed like something thrown on at the factory/dealership.

thats right. Cheap because its made in LA. Not bad props but dont perform well on xpress hulls.

quote:

Which of those other 2 props, in your opinion,
either or at this point. Pro series may be easier to turn so try that. The tempest will require a hub kit ($50) to fit on the Yamaha splined shaft. No big deal to get it if you want the tempest.
Posted by TheLSUriot
Clear Lake, TX
Member since Oct 2007
1505 posts
Posted on 9/8/16 at 9:47 am to
quote:

my buddy's h22 with w150 and no JP did 50-51
That makes me feel better. Guy I bought it from said it topped out at 59; he must have misspoke and meant to say 49.

You made a good point about a 4 blade lifting the rear and flatting the ride. That should keep the wife happy. Based on the OP in that other thread, you didn't loose much top end using the Pro series 4 blade.

Do you know how does the rev limiter work on the F150?
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/8/16 at 9:55 am to
quote:

Guy I bought it from said it topped out at 59;
maybe on the needle speedo. Always use GPS speeds.
quote:

4 blade lifting the rear and flatting the ride. That should keep the wife happy.

it still lifts the boat very well but the bow isnt pointed as "high up". Its not a HUGE difference where your wife would ever know the difference. it wont change the ride of the boat. Its just the qualities of a 4 blade. The boat will still bounce when not trimmed right. Xpress hulls are light so they are sensitive to weight distribution and trim.

quote:

Pro series 4 blade.
this wasnt a pro series 4 blade.they dont make it in a 4 blade. it was a performance series. different blade design. Hard prop to find. i ran across it at a local store and they pretty much gave it way so i took it. Stick with the "true" pro series

quote:

Do you know how does the rev limiter work on the F150?
i think it stops you at 6200ish. dont go over 6000. anything above that is "over rev" and can be seen when plugged into a mechanic's computer. yamaha wont warranty some issues when over revs are shown

ETA: I cant stress this enough - you want your wife to not complain about the ride, get a glass bay boat. Mine complained every time we went in open water that was "rough" in the Xpress. She hasnt said a bad word about the new boat.
This post was edited on 9/8/16 at 10:14 am
Posted by TheLSUriot
Clear Lake, TX
Member since Oct 2007
1505 posts
Posted on 9/8/16 at 10:16 am to
Good point about the speedo. The analog gauge is crap. Sometimes it works other times it gets stuck at various speeds. Not very sensitive at all so it gets ignored. Already looking to see what else I could put in that spot. I go by what the Helix 9 GPS is telling me.

My mistake, I misread what you wrote about the prop.

quote:

get a glass bay boat
She has an irrational fear that anytime the bow rises its going to fly up into the air and flip over like racing boats do. We could be in my dad's 16' marsh rig, her dad's 19' Nautic Star, or my friend's 25' Blackjack. Doesn't matter. She can handle a rough ride just no bow rise.

Again, thanks for the input. Its much appreciated.
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/8/16 at 10:20 am to
quote:

She can handle a rough ride just no bow rise.

well this is what xpress hulls are designed for. To getthe xpress to perform like it was designed you need to get the bow up ( Your wife would shite). With the 150 on the h22 you wont be setting any speed records so bow rise to that extreme is not even close to a concern.

quote:

Already looking to see what else I could put in that spot.
jbl fits right in

quote:

25' Blackjack
This post was edited on 9/8/16 at 10:28 am
Posted by TheLSUriot
Clear Lake, TX
Member since Oct 2007
1505 posts
Posted on 9/8/16 at 10:40 am to
Damn, that stereo is awesome. Definitely going to take a close look at that little guy. Can get the kit with accessories and 2 speakers for $225 shipped.
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/8/16 at 10:43 am to
i had it with 2 6.5" jbl speakers in the console. fine for fishing but wasnt loud enough to jam while cruising. It will do the job but IMO it needs and amp (100 watt amp from wal mart will be sufficent and cheap)

Im currently running 4 - 7.7" JL speakers off a 300watt amp and to me thats perfect. crystal clear at 50mph
This post was edited on 9/8/16 at 10:45 am
Posted by double d
Amarillo by morning
Member since Jun 2004
16432 posts
Posted on 9/8/16 at 10:45 am to
My son just got his H20B in Saturday; he put his 1 year old F150LA on it. Not sure of the prop data, it was stock when he bought the motor. With full tank, some gear, the two of us (combined 425 lbs) and his Labrador we ran 54-56 in the bayou. He may need to put a different prop on it but it's fast enough for me.
This post was edited on 9/8/16 at 10:48 am
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/8/16 at 10:46 am to
quote:

My son just got his H20B in Saturday; he put his 1 year old F150LA on it. Not sure of the prop data, it was stock when he bought the motor. With full tank, some gear, the two of us (combined 425 lbs) and his Labrador we ran 54-56 in the bayou. He may need to put a different prop on it.

good numbers and great hp to boat weight ratio. right JP and prop that is a 57-59mph boat
This post was edited on 9/8/16 at 10:47 am
Posted by double d
Amarillo by morning
Member since Jun 2004
16432 posts
Posted on 9/8/16 at 10:50 am to
Thanks. He put a manual plate on it and they set it up for him. He had limited budget so he left off hydraulic jack plate, power pole, and sound system. His Yeti with the built in speakers does just fine when fishing and placed just behind the leaning post on the deck (strapped down of course) it is ok when running.
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/8/16 at 10:57 am to
set the plate at 3.75" below pad and forget about it. put a 21" pro series or tempest on it and let her fly.

This weekend i saw a H18B with a F150 on it
This post was edited on 9/8/16 at 10:58 am
Posted by double d
Amarillo by morning
Member since Jun 2004
16432 posts
Posted on 9/8/16 at 11:39 am to
Wow, it's only rated for 115 I believe. That thing must have had wings!
Posted by TheLSUriot
Clear Lake, TX
Member since Oct 2007
1505 posts
Posted on 9/9/16 at 11:29 am to
Was thinking about something you said yesterday that didn't make sense to me.
quote:

All props of the same pitch will give different rpms due to diameter, blade design and blade stiffness differences
I understand this.
quote:

you should be turning a 19 pitch
But not this. I am already running high rpms with the 21" OFX, which I read is a large diameter (15.25") and has good grip with aggressive cupping and high rake. Why do you suggest running a 19"?
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/9/16 at 12:15 pm to
quote:

good grip with aggressive cupping and high rake.

This sounds like it is directly off the powertec website. Of course they say this about their prop. You get a prop with real cupping and larger blades your rpms will decrease.

You said you did 6100 with light load and 2 people. You put 3-4 people and heavier load then you will be at 5500

You may be able to swing a 21 pro series. I'd go to a 19 if you go with a 4 blade.

The right way to determine is with your average fishing load and average people on board make a few runs. Document your prop to pad, max rpms and speed. Then you will know what pitch to run. Since every prop varies you will have some unknowns but you can get it pretty close.
- give me your prop to pad measurement for the speed and rpms you gave and I can let you know more.

I've noticed with ptec props is that you get lots of slip. So you turn the prop really fast but it's not gripping the water. When you grip it will reduce your rpms due to friction and propulsion.
Your numbers give me 14% slip. That's high. I'm getting 6% on my bay boat and had my h20b down to 6%

Email me at seapickle09@gmail.com and we can get you set up
This post was edited on 9/9/16 at 1:50 pm
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/9/16 at 12:34 pm to
1530lb hull and a 150hp you would think a 19" would be what you need.
My 1800lb 22' glass boat with a 200hp is turning an 18"x14.25 6000 rpms and a 19"x13.75 5800rpms. Same prop too. Yamaha reliance
This post was edited on 9/9/16 at 12:35 pm
Posted by TheLSUriot
Clear Lake, TX
Member since Oct 2007
1505 posts
Posted on 9/9/16 at 3:25 pm to
You got me, it came from a website. This is the first powertech of its kind I have seen up close. I thought it has an aggressive look to it didn't question what I read.

I had calculated between 14-16% slip as well. The load on that run was full tank, 2 grown men, fishing gear, cooler loaded down with shrimp and reds. Looking back now that is about average and doubt I ever load her down with 5-6 people + gear.

I will take prop to pad measurements tomorrow to try to figure out where I was running at and mark the height it should be. Hopefully will get to run her again at some point this weekend.
Posted by SeaPickle
Thibodaux
Member since May 2011
3133 posts
Posted on 9/9/16 at 5:53 pm to
If you have to raise your motor to get to 4-3.5" p2p then go with a 21" pro series. I doubt you are any higher than that but if you have to go down then go with a 19. You had a decent load in the boat. I thought you were lighter.
Still may need a 19 but we can figure that out when we know your p2p. You can swap it from the seller for a 21/19 if one isn't perfect.
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